Eaton SONIX Hmi-26 User manual

SONIXTM Hmi-26 Access Panel
SonixTM Hmi-26 Technical Manual

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SONIXTM Hmi-26 Technical Manual
SONIX HMI26 TECHNICAL MANUAL TM375 / A June 2022 www.eaton.com
Disclaimer of warranties and limitation of liability
The information, recommendations, descriptions and safety notations in this document are based on Eaton
Corporation’s (“Eaton”) experience and judgment and may not cover all contingencies. If further information is
required, an Eaton sales ofce should be consulted. Sale of the product shown in this literature is subject to the terms
and conditions outlined in appropriate Eaton selling policies or other contractual agreement between Eaton and the
purchaser.
There are no understandings, agreements, warranties, expressed or implied, including Warranties of tness for a
particular purpose or merchantability, other than those
Specically set out in any existing contract between the parties. Any such contract states the entire obligation of
eaton. The contents of this document shall not become part of or modify any contract between the parties.
In no event will Eaton be responsible to the purchaser or user in contract, in tort (including negligence), strict liability or
other-wise for any special, indirect, incidental or consequential damage or loss whatsoever, including but not limited to
damage or loss of use of equipment, plant or power system, cost of capital, loss of power, additional expenses in the
use of existing power facilities, or claims against the purchaser or user by its customers resulting from the use of the
information, recommendations and descriptions contained herein. The information contained in this manual is subject
to change without notice.

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SONIXTM Hmi-26 Technical Manual
SONIX HMI26 TECHNICAL MANUAL TM375 / A June 2022 www.eaton.com
Glossary
Abbreviation Meaning
PA/GA Public Address and General Alarm
Sonix Sonix PA/GA System
A&B Duplicated PA/GA system architecture
N+1 Hot spare PA/GA system architecture
AB+ Sonix improved redundancy architecture
Hmi Human interface
BGM Background music
Tick-tone Short burst of tone repeated every few seconds, used to check the output of connected loudspeakers
Sense Test Periodic test carried by Sonix amplier to check integrity of 100 V line
100 V line High voltage loudspeaker connection line at nominal 100 V ac
MCB Miniature Circuit Breaker
RCBO Residual current circuit breaker with overcurrent protection
Unit ID/Number Unique identier assigned to each of Sonix module, used to identify it to the 2Mx and SAS.
Priority Number assigned to a Sonix audio source to facilitate system usage conict resolution, 31 (highest) to 1 (lowest)
PTT Push to talk
FAT Factory Acceptance Test
SAT Site Acceptance Test
Larson’s Effect When a microphone is acoustically coupled to the loudspeaker and generates feedback
2Mx Sonix 2Mx Central controller
Amp / 350-d Sonix 350 W Power Amplier with 100 V line output
Eol1 Sonix Remote End of Line unit
Eol8 Sonix Amplier to 100 V line interface unit (8 channel)
SP AD Sonix Intelligent loudspeaker monitoring unit
Hmi-Br Sonix intrinsically safe barrier (ATEX/IECEx) for connecting Hmi-5 in explosive atmospheres
Hmi-Mute Sonix 100V loudspeaker mute (Ex/SA)
Hmi-26 Sonix Human Interface access panel
Hmi-5 Sonix Small Human Interface access panel
Io Sonix Input / Output unit
Ms12 Sonix 12-message digital message store
Pbx Sonix Private branch exchange interface unit
Pm10 Sonix Power Management unit
Vw2 Sonix Beacon control and monitoring unit (2 channel)
SAS Sonix Administration Software
Amp Bus A 2Mx bus, used to communicate with and control Sonix Amplier units
HMI Bus A 2Mx bus, used to communicate with and control Sonix Hmi units
I/O Bus A 2Mx bus, used to communicate with and control Sonix input/output devices: IG, Io and Ms12
Beacon Bus A 2Mx bus, used to communicate with and control Sonix Vw2 units
Power Bus A 2Mx bus, used to communicate with and control Sonix Pm10 units
Global Bus A 2Mx bus, used to communicate with SAS application
Sync A 2Mx bus used to communicate with the second 2Mx unit when PA/GA system is congured as A&B, AB+ or N+1
system

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SONIXTM Hmi-26 Technical Manual
SONIX HMI26 TECHNICAL MANUAL TM375 / A June 2022 www.eaton.com
Contents
1. CONTENTS ............................................................................4
2. INTRODUCTION........................................................................6
2.1 Eaton quality assurance .....................................................................6
2.2 Packaging.................................................................................6
2.3 ESD (Electro Static Discharge) ................................................................6
2.4 Safe working practice .......................................................................6
2.5 Required tools .............................................................................6
2.6 In the box ................................................................................6
2.7 Recommended spares ......................................................................6
3 ABOUT THE PRODUCT...................................................................9
3.1 Available features ..........................................................................9
3.2 Overview of unit ...........................................................................9
3.2.1 Weight and dimensions ...................................................................9
3.2.2 Power and utility ........................................................................9
3.3 Installation and connectivity .................................................................10
3.3.1 Data and Audio connections ..............................................................10
3.3.2 Local Mute / Local Attenuate unit ..........................................................10
3.3.3 Local Power ...........................................................................11
4 UNIT OPERATION ......................................................................12
4.1 Data communications .....................................................................12
4.2 System Status reporting ....................................................................12
4.2.1 Health ...............................................................................12
4.2.2 Busy.................................................................................12
4.2.3 Comms ..............................................................................12
4.2.4 Auto Initiate ...........................................................................12
4.2.5 Auto Inhibit ...........................................................................12
4.2.6 Intercom .............................................................................12
4.3 Alarm control and indication .................................................................13
4.3.1 Alarm activation buttons .................................................................13
4.3.2 Zoned alarms ..........................................................................13
4.3.3 Alarm Cancel ..........................................................................14
4.3.4 Alarm Attenuate........................................................................14
4.4 Making a speech broadcast..................................................................15
4.4.1 Priority ...............................................................................15
4.4.2 Zoning ...............................................................................15
4.4.3 Zone configuration......................................................................15
4.4.4 Default zone map ......................................................................16
4.4.5 Microphone input ......................................................................16
4.4.6 Routine speech ........................................................................16
4.4.7 Emergency speech .....................................................................17
4.4.8 Mute and Attenuate outputs ..............................................................18

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SONIXTM Hmi-26 Technical Manual
SONIX HMI26 TECHNICAL MANUAL TM375 / A June 2022 www.eaton.com
4.5 Other features ............................................................................18
4.5.1 LED Test..............................................................................19
4.5.2 Fault Reporting ........................................................................19
4.5.3 Fault Acknowledge (Fault buzzer mute)......................................................19
4.5.4 Global fault mute .......................................................................19
4.5.5 Global fault reset .......................................................................20
4.5.6 BGM (Background Music) ................................................................20
4.5.7 Engineers Panel........................................................................20
4.5.8 Ms12 Remote initiation ..................................................................20
5 CONFIGURATION ......................................................................21
5.1 Hardware configuration links ................................................................21
5.2 Solo connected access panels ...............................................................21
5.3 Fully connected access panels ...............................................................21
5.4 Unit ID .................................................................................21
5.4.1 Ping-set (Set new Unit ID)................................................................21
5.5 Priority .................................................................................21
5.6 Zone button map including worked examples ...................................................21
5.6.1 Normal operation .......................................................................22
5.6.2 Multi-Zone mode operation ...............................................................22
5.6.3 Simple zone map.......................................................................22
5.6.4 Medium zone map. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
5.6.5 Microphone input ......................................................................23
5.6.6 Advanced zone map ....................................................................23
5.6.7 Large amplifier count zone map ...........................................................23
6 UNIT CUSTOMISATION .................................................................24
6.1 Custom overlays ..........................................................................24
6.2 Firmware customisation ....................................................................24
7 PROGRAMMING UNITS.................................................................24
8 MAINTENANCE .......................................................................24

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6
SONIXTM Hmi-26 Technical Manual
SONIX HMI26 TECHNICAL MANUAL TM375 / A June 2022 www.eaton.com
1.1 List of Tables
TABLE 1 - A SIDE DATA/AUDIO CABLE CONNECTION DETAILS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
TABLE 2 - B SIDE DATA/AUDIO CABLE CONNECTION DETAILS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
TABLE 3 - MUTE/ATTENUATE CABLE CONNECTION DETAILS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
TABLE 4 - LOCAL POWER CABLE CONNECTION DETAILS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
TABLE 5 - AVAILABLE ROUTINE SPEECH CHIMES.............................................18
TABLE 6 - AVAILABLE EMERGENCY SPEECH CHIMES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
TABLE 7 – NORMAL OPERATION ZONE BUTTON VALUE MAP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
TABLE 8 - MULTI-ZONE MODE BUTTON DISTRIBUTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
TABLE 9 - MULTI-ZONE BUTTON VALUE CALCULATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
TABLE 10 - ZONING EXAMPLE 1 - REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
TABLE 11 - ZONING EXAMPLE 1 - ZONE BUTTON CONFIGURATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
TABLE 12 - ZONING EXAMPLE 1 - OTHER CONFIGURATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
TABLE 13 - ZONING EXAMPLE 2 - REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
TABLE 14 - ZONING EXAMPLE 2 - ZONE BUTTON CONFIGURATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
TABLE 15 - ZONING EXAMPLE 2 - OTHER CONFIGURATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
TABLE 16 - ZONING EXAMPLE 3 - REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
TABLE 17 - ZONING EXAMPLE 3 - ZONE BUTTON CONFIGURATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
TABLE 18 - ZONING EXAMPLE 3 - OTHER CONFIGURATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
TABLE 19 - ZONING EXAMPLE 4 - REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
TABLE 20 - ZONING EXAMPLE 4 - ZONE BUTTON CONFIGURATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
TABLE 21 - ZONING EXAMPLE 4 - OTHER CONFIGURATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

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SONIXTM Hmi-26 Technical Manual
SONIX HMI26 TECHNICAL MANUAL TM375 / A June 2022 www.eaton.com
1.2 List of Figures
FIGURE 1 - UNIT LAYOUT ..................................................................8
FIGURE 2 - A-SIDE DATA AND AUDIO CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
FIGURE 3 - B-SIDE DATA AND AUDIO CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
FIGURE 4 - A-SIDE MUTE/ATTENUATE CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
FIGURE 5 - B-SIDE MUTE/ATTENUATE CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
FIGURE 6 - LOCAL DC POWER CONNECTIONS ...............................................10
FIGURE 7 - STATUS REPORTING LEDS......................................................12
FIGURE 8 - ALARM ACTIVATION AND CONTROL BUTTONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
FIGURE 9 - ALL-CALL VS ZONED ALARMS ...................................................14
FIGURE 10 - ZONED ALARM ACTIVATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
FIGURE 11 - PA/GA SYSTEM BROADCAST PRIORITY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
FIGURE 12 - AVAILABLE ZONE BUTTONS ...................................................16
FIGURE 13 - SUGGESTED MICROPHONE POSITIONING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
FIGURE 14 - VU METER ..................................................................18
FIGURE 15 - PUSH TO TALK BUTTON .......................................................18
FIGURE 16 - IMPORTANT MESSAGE BUTTON................................................19
FIGURE 17 - LOCAL ATTENUATE BUTTON ...................................................20
FIGURE 18 - LED TEST BUTTON............................................................21
FIGURE 19 - FAULT ACKNOWLEDGE BUTTON ................................................21
FIGURE 20 - MS12 REMOTE PLAYBACK INITIATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

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SONIXTM Hmi-26 Technical Manual
SONIX HMI26 TECHNICAL MANUAL TM375 / A June 2022 www.eaton.com
2 Introduction
These instructions are intended for all users who have
to install, commission, congure and setup the Sonix
Hmi 26 access panel. For this, the manual is action-
oriented and explains how to achieve a certain objective
on a step-by-step basis. It is assumed that you have
necessary electrical, electronic and telecommunications
experience to undertake the work. If in doubt, please
consult your Eaton representative.
2 2.1 Eaton quality assurance
Eaton design, manufacture, install and commissions all
our products to the highest standards of quality. This
quality process is embraced and adopted throughout the
group in all areas of our operations. This is demonstrated
by our compliance and strict adherence to ISO 9001,
14001, ATEX, IECEX policies. On receipt of the product,
ensure that the cartons are undamaged and that the
contents are all correct and complete. Should this
product reach you in an unsatisfactory condition please
report this to Eaton to enable us to rectify and investigate
the fault in a speedy manner.
2.2 Packaging
The Sonix PA/GA system is designed around a highly
secure & exible architecture, that removes the need for
lengthy engineering cycles, bespoke and costly software,
custom eld engineering or expensive onsite support.
This results in a highly effective and exible
communications solution for the next generation.
The Sonix system has been rigorously designed for
installation in both safe area or potentially explosive
environments, using latest protection philosophies
including EExe, d, i, m and p to ensure the highest levels
of safety whilst increasing operational features.
The Sonix PA/GA System is designed to meet and
surpass the requirements of ATEX, IECEx, DNV, BV,
ABS, IMO and PFEER, with other regional certications
pending.
Please refer to Sonix system technical manual for any
further information
2.3 ESD (Electro Static Discharge)
The Sonix PA/GA system is largely constructed from
electronic printed circuit boards. These printed circuit
boards are sensitive to static electricity, ESD discharge
on to any of the Eaton products could cause permanent
and irreparable damage to the equipment. All such PCB’s
are shipped to you in ESD protective bags for transit.
Prior to opening the transit bags please ensure that you
are wearing either an ESD, earthed wrist strap or other
suitable means of protection.
2.4 Safe working practice
Whilst working on or within the Sonix PA/GA system it
is our prime interest that you remain safe throughout.
During this work you may be exposed to potentially
hazardous voltages, currents, conned spaces and
potentially industrial environments.
Prior to undertaking any work please ensure relevant
permits and regulations are adhered to.
2.5 Required tools
To install and commission this part you will need the
following tools.
• Flat-blade terminal screw driver
• Small Flat-blade terminal screw driver up to 2.5 mm
• Multi-meter
2.5 Required tools
This item is shipped with the following items.
• 1 x Hmi 26 access panel
• 1 x desk mount console back box*
• 1 x Product Manual
*if ordered with console back box option.
2.7 Recommended spares
This item is sold as a complete module; therefore no
spares are necessary.

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SONIXTM Hmi-26 Technical Manual
SONIX HMI26 TECHNICAL MANUAL TM375 / A June 2022 www.eaton.com
3 About the product
The Sonix Hmi-26 is a Human Interface access panel
for connection into the Sonix PA/GA system. It provides
operators with the ability to interface with the system
to view status, active alarms and make announcements,
both routine and emergency speech. The units are
remotely congurable using the Sonix Administration
Software (SAS) with several features that can be tailored
to the needs of system installation.
The unit is an A and B duplicated unit with independent
and isolated circuits for A side and B side. Each side is
typically phantom powered from the PA/GA system rack
and has been designed to be a low power solution. The
unit occupies a standard 3U 19” rack footprint and can
be mounted separately or as part of a larger console
installation. It can also optionally be supplied with a
backbox to allow for mounting outside of a 19” rack.
3.1 Available features
• 6 Manual Alarm activation buttons with corresponding
LED status indications
• Alarm control options including:
• Alarm Cancel
• Alarm Attenuate
• Routine speech
• Zone control including All-Call and a default zone list
• 12 configurable zoning buttons
• Emergency speech
• All-Call or with Zone control
• Remote Ms12 message store playback activation
• Status indication including system activity:
• Active alarms
• Active zones
• Active broadcast
• System health with fault buzzer to attract operator
attention
• Local speaker Mute / Attenuate control
• LED Lamp test
• Microphone can be either a goose-neck or hand-held
style
• VU meter to assist with optimum speaker
positioning and volume
• Unit self-monitoring and fault reporting
• Unit mounting options:
• Console
• 19” rack
• Wall using supplied back box
• Desk using supplied back box
• Remote configuration using Sonix software
3.2 Overview of unit
Figure 1 - Unit layout
Item DESCRIPTION
1Alarm activation buttons and indicators
2System and unit status indicators
3Zone control buttons and status indicators
4Microphone audio level VU meter
5Important message button and indicator
6Alarm Cancel button and indicator
7Alarm Attenuate button and indicator
8Push to talk button and indicator
9MS12 Message initiate button and indicator
10 Local Attenuate button and indicator
11 LED Test button
12 Fault Acknowledge and indicator
13 Microphone
3.2.1 Weight and dimensions
Un-packed: up to 3.0 kg; 140 x 60 x 489 mm (desk/
wall complete with back box)
3.2.2 Power and utility
Voltage: 24 V dc phantom powered from partner
equipment in the PA/GA system
Current: 100mA max consumption
PA/GA
System
Normal
Alarm
1
2
3
4
PA/GA
System
Zoned
Alarm
1
2
3
4
Figure 1 - Unit layout
1 2 3 4
5 6 7 8 9 10 11 12
13
Alarm 1
Alarm 2
Alarm 3
Alarm 4
Alarm 5
Alarm 6
Zone
Button 5
Zone
Button 6
Zone
Button 7
Zone
Button 9
Zone
Button
10
Zone
Button
11
Zone
Button 1
Zone
Button 2
Zone
Button 3
Zone
Botton 8
Zone
Button 4
Zone
Button
12
1
2

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SONIXTM Hmi-26 Technical Manual
SONIX HMI26 TECHNICAL MANUAL TM375 / A June 2022 www.eaton.com
3.3 Installation and connectivity
The unit should be installed securely using appropriate
xings.
ote:N The goose-neck microphone is not designed to be de-mounted
from the unit.
Warning: Potential for sharp edges and corners during
installation.
3.3.1 Data and Audio connections
Data and audio connections to the unit should be wired
with 2 twisted pair and screen cable, with both individual
and overall screen for improved noise performance.
The unit uses 1 pair for outgoing audio with incoming
phantom power superimposed on the top. The second
pair is used for bi-directional RS485 at 38,400 8-N-1
baud serial for control and status reporting. The screen
connection is required as part of the 0V return. The
maximum cable distance that the system can support
for an Hmi-26 is 750 m, connections longer than this
are not supported and are likely to result in un-reliable
operation.
Connections to a Sonix Hmi-Tu should be wired pin-to-
pin without any crossover.
A side PA/GA ASSIGNMENT CONNECTION
2off Twisted pair, individual and
overall screen.
1.5 mm² to 2.5 mm² (max ferruled)
SWA / SWB
Audio 1 + J3 – 1
Audio 1 - J3 – 2
Data 1 + J3 – 3
Data 1 - J3 – 4
Screen J3 – 9/10
Table 1 - A Side data/audio cable connection detail
Figure 2 - A-Side Data and Audio
B side PA/GA ASSIGNMENT CONNECTION
2off Twisted pair, individual and
overall screen.
1.5 mm² to 2.5 mm² (max ferruled)
SWA / SWB
Audio 1 + J5 – 1
Audio 1 - J5 – 2
Data 1 + J5 – 3
Data 1 - J5 – 4
Screen J5 – 9/10
Table 2 - B Side data/audio cable connection details
Figure 3 - B-Side Data and Audio
0%
VU Meter
Alarm 1 Alarm 2 Alarm 3
Alarm 4 Alarm 5 Alarm 6
Important
Message
Alarm
Cancel
Alarm
Attenuate PUSH TO TALK
Zone 1 Zone 2 Zone 3 Zone 4
Zone 5 Zone 6 Zone 7 Zone 8
Zone 9 Zone 10 Zone 11 Zone 12
Monitor Local Att LED Test Fault Ack
100%
Health
Busy Intercom
Comms
Auto
Initiate
Auto
Inhibit
+
-
J1
+24V
0V
A
J2
+24V
0V
B
J9
2
1
A�enuate
Mute
+5V
+5V
-5V
-5V
6
A
1
J10
10
Mute
A�enuate
+5V
+5V
-5V
-5V
9
1
6
B
1
10
9
2
J3
1
2
A
1
10
9
2
J5
1
2
B
0%
VU Meter
Alarm 1 Alarm 2 Alarm 3
Alarm 4 Alarm 5 Alarm 6
Important
Message
Alarm
Cancel
Alarm
Attenuate PUSH TO TALK
Zone 1 Zone 2 Zone 3 Zone 4
Zone 5 Zone 6 Zone 7 Zone 8
Zone 9 Zone 10 Zone 11 Zone 12
Monitor Local Att LED Test Fault Ack
100%
Health
Busy Intercom
Comms
Auto
Initiate
Auto
Inhibit
+
-
J1
+24V
0V
A
J2
+24V
0V
B
J9
2
1
A�enuate
Mute
+5V
+5V
-5V
-5V
6
A
1
J10
10
Mute
A�enuate
+5V
+5V
-5V
-5V
9
1
6
B
1
10
9
2
J3
1
2
A
1
10
9
2
J5
1
2
B

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SONIXTM Hmi-26 Technical Manual
SONIX HMI26 TECHNICAL MANUAL TM375 / A June 2022 www.eaton.com
3.3.2 Local Mute / Local Attenuate unit
Connections to activate a local mute and/or local
attenuate unit are made into the corresponding A or B
output connections on the rear of the unit. Both outputs
generate 10 V dc [+5 V and -5 V] and have a minimum
load impedance of 300Ω. The Mute output is activated
on any push to talk event*. The Attenuate output is also
activated on push to talk but additionally can be manually
controlled from the Local Attenuate button.
ote:N The push to talk event occurs when a user presses the PTT
(Push to Talk) button on the access panel AND the system broadcasts
the speech. Any overriding events will cause the Mute and Attenuate
outputs to be de-activated.
Please observe carefully the maximum cable weight due
limited terminal size.
Cable connection Assignment Aside
Connection B side
Connection
Mute:
Solid to 1.5 mm²
Stranded to 0.5 mm²
(max ferruled)
+5 V J9 – 3 J10 – 3
-5 V J9 – 4 J10 – 4
Attenuate:
Solid to 1.5 mm²
Stranded to 0.5 mm²
(max ferruled)
+5 V J9 – 5 J10 – 5
-5 V J9 – 6 J10 – 6
Table 3 - Mute/Attenuate cable connection details
3.3.3 Local Power
For installations where phantom power cannot be
provided, there is a separate +24 V dc input connector
for each side of the unit, A & B. These inputs should be
supplied by independent power supplies to ensure no
loss of redundancy.
Figure 6 - Local DC Power connections
Cable connection Assignment A side
Connection B side
Connection
Solid to 1.5 mm²
Stranded to 0.5 mm²
(max ferruled)
+24 V J1 – 1 J2 – 1
0 V J1 – 2 J2 – 2
Table 4 - Local Power cable connection details
0%
VU Meter
Alarm 1 Alarm 2 Alarm 3
Alarm 4 Alarm 5 Alarm 6
Important
Message
Alarm
Cancel
Alarm
Attenuate PUSH TO TALK
Zone 1 Zone 2 Zone 3 Zone 4
Zone 5 Zone 6 Zone 7 Zone 8
Zone 9 Zone 10 Zone 11 Zone 12
Monitor Local Att LED Test Fault Ack
100%
Health
Busy Intercom
Comms
Auto
Initiate
Auto
Inhibit
+
-
J1
+24V
0V
A
J2
+24V
0V
B
J9
2
1
A�enuate
Mute
+5V
+5V
-5V
-5V
6
A
1
J10
10
Mute
A�enuate
+5V
+5V
-5V
-5V
9
1
6
B
1
10
9
2
J3
1
2
A
1
10
9
2
J5
1
2
B
Figure 4 - A-Side Mute/Attenuate connections
0%
VU Meter
Alarm 1 Alarm 2 Alarm 3
Alarm 4 Alarm 5 Alarm 6
Important
Message
Alarm
Cancel
Alarm
Attenuate PUSH TO TALK
Zone 1 Zone 2 Zone 3 Zone 4
Zone 5 Zone 6 Zone 7 Zone 8
Zone 9 Zone 10 Zone 11 Zone 12
Monitor Local Att LED Test Fault Ack
100%
Health
Busy Intercom
Comms
Auto
Initiate
Auto
Inhibit
+
-
J1
+24V
0V
A
J2
+24V
0V
B
J9
2
1
A�enuate
Mute
+5V
+5V
-5V
-5V
6
A
1
J10
10
Mute
A�enuate
+5V
+5V
-5V
-5V
9
1
6
B
1
10
9
2
J3
1
2
A
1
10
9
2
J5
1
2
B
Figure 5 - B-Side Mute/Attenuate connections
0%
VU Meter
Alarm 1 Alarm 2 Alarm 3
Alarm 4 Alarm 5 Alarm 6
Important
Message
Alarm
Cancel
Alarm
Attenuate PUSH TO TALK
Zone 1 Zone 2 Zone 3 Zone 4
Zone 5 Zone 6 Zone 7 Zone 8
Zone 9 Zone 10 Zone 11 Zone 12
Monitor Local Att LED Test Fault Ack
100%
Health
Busy Intercom
Comms
Auto
Initiate
Auto
Inhibit
+
-
J1
+24V
0V
A
J2
+24V
0V
B
J9
2
1
A�enuate
Mute
+5V
+5V
-5V
-5V
6
A
1
J10
10
Mute
A�enuate
+5V
+5V
-5V
-5V
9
1
6
B
1
10
9
2
J3
1
2
A
1
10
9
2
J5
1
2
B
0%
VU Meter
Alarm 1 Alarm 2 Alarm 3
Alarm 4 Alarm 5 Alarm 6
Important
Message
Alarm
Cancel
Alarm
Attenuate PUSH TO TALK
Zone 1 Zone 2 Zone 3 Zone 4
Zone 5 Zone 6 Zone 7 Zone 8
Zone 9 Zone 10 Zone 11 Zone 12
Monitor Local Att LED Test Fault Ack
100%
Health
Busy Intercom
Comms
Auto
Initiate
Auto
Inhibit
+
-
J1
+24V
0V
A
J2
+24V
0V
B
J9
2
1
A�enuate
Mute
+5V
+5V
-5V
-5V
6
A
1
J10
10
Mute
A�enuate
+5V
+5V
-5V
-5V
9
1
6
B
1
10
9
2
J3
1
2
A
1
10
9
2
J5
1
2
B

1
1
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1
1
1
1
1
1
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1
1
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SONIXTM Hmi-26 Technical Manual
SONIX HMI26 TECHNICAL MANUAL TM375 / A June 2022 www.eaton.com
4 Unit operation
4.1 Data communications
The Hmi-26 unit communicates with the Sonix PA/
GA system rack using RS-485 serial and a balanced
audio pathway. The protocol used is a proprietary Sonix
datagram format with messages exchanged every
100ms. The datagrams contain system status and
activity from the PA/GA and access panel status and
activity going to the PA/GA rack. While idle, the Hmi-
26 access panel is transmitting low level audio that is
monitored by the PA/GA rack to detect degradation in
the audio pathway.
It is possible to disable a Hmi-26 access panel from
sending status updates to the 2Mx central controller
by setting Data Out to disabled, this is NOT a
recommended setting.
ote:N Access panels with Data Out option disabled will not update sta-
tus but will respond to configuration queries and updates.
Key setting
Data Out Port 1 Enabled
4.2 System Status reporting
The unit reports system status on the LEDs visible to
the user. System A and System B status is reported on
independent sets of indicators.
Figure 7 - Status reporting LEDs
4.2.1 Health
Indication of PA/GA system health:
None Power is missing or LED fault
Green System is healthy, no faults reported
Red System is in fault, check the 2Mx
central controller and SAS for details
Green and System is currently healthy but had a
flashing RED previous fault detected (cleared on fault
reset)
The Health indicator has no congurable options.
4.2.2 Busy
Indication of activity on the PA/GA system:
None System is idle
Green System is active
Slow flashing AB+ active
Green (~ 0.7 Hz)
Fast flashing Engineers’ panel active on system
Green (~ 3 Hz)
The Busy indicator has no congurable options.
4.2.3 Comms
Status of communications for this Hmi-26 access panel:
Green Communications healthy, receiving data
from PA/GA system
Red No communications from system,
check cabling and PA/GA system rack
Green and Communications currently healthy but
Flashing Red had a previous fault detected (cleared
on fault reset)
The Comms indicator can be disabled by preventing
monitoring of the data communications status in
conguration (not recommended).
4.2.4 Auto Initiate
Flag to indicate that current active alarm has been
initiated from contacts fed into the IO-Tu unit:
Green System has alarm generated by remote
initiated input
None System does not have an active remote
initiated alarm
The Auto Initiate indicator has no congurable options.
4.2.5 Auto Inhibit
Reserved for future expansion, not currently in use.
4.2.6 Intercom
Reserved for future expansion, not currently in use.
Alarm 1
Alarm 2
Alarm 3
Alarm 4
Alarm 5
Alarm 6
B
A
Alarm
Cancel
Alarm
Attenuate
Zone
Button 5
Zone
Button 6
Zone
Button 7
Zone
Button 9
Zone
Button
10
Zone
Button
11
A
B
Zone
Button 1
Zone
Button 2
Zone
Button 3
Zone
Botton 8
Zone
Button 4
Zone
Button
12
Local Att
LED Test
Fault
Ack
MS12 /
Monitor
PUSH TO TALK
Local Att
LED Test
Fault
Ack
MS12 /
Monitor
Local Att
LED Test
Fault
Ack
MS12 /
Monitor
Local Att
LED Test
Fault
Ack
MS12 /
Monitor
Important
Message
Alarm
Cancel
Health
Health
Auto Initiate
Auto Initiate
Comms
Comms
Auto Inhibit
Auto Initiate
Auto Inhibit
Auto Inhibit
Intercom
Comms
Intercom
Intercom
Busy
Health
Busy
Busy
STATUS
B
A
0%
100%
VU Meter

1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
13
SONIXTM Hmi-26 Technical Manual
SONIX HMI26 TECHNICAL MANUAL TM375 / A June 2022 www.eaton.com
4.3 Alarm control and indication
Figure 8 - Alarm Activation and Control buttons
The Hmi-26 can activate up to 6 alarms and control
active alarms using the dedicated buttons on the left-
hand side of the unit. The status of the A and B systems
are reected in the individual LEDs associated with the
button.
The alarm control buttons are protected from accidental
activation by a clear ap guard that drops into place over
the buttons to prevent accidental activation.
4.3.1 Alarm activation buttons
Each alarm activation button has a xed function but can
be individually disabled in conguration. The order of the
buttons reects the priority of the corresponding alarms
in the system: Alarm 1 (Highest priority) >> Alarm 6
(Lowest priority).
The LED shows the following status:
None Alarm is NOT active on the system
Solid Orange Alarm is active on the system and has
been activated from this access panel
Flashing Alarm is active on the system but was
Orange activated by a different source
(~ 0.5 Hz)
ote:N The LED will still illuminate for an active Alarm even if the button
itself is disabled in configuration
4.3.2 Zoned alarms
Activating the Alarm button alone will cause the access
panel to activate the corresponding Alarm for All Zones.
The Hmi-26 also supports Zoned alarms, by activating
an Alarm for a limited sub-set of zones. The procedure
for this is to pre-select one or more Zone Buttons before
activating the alarm button.
Figure 9 - All-Call vs Zoned Alarms
Alarm 1
Alarm 2
Alarm 3
Alarm 4
Alarm 5
Alarm 6
B
A
Alarm
Cancel
Alarm
Attenuate
Zone
Button 5
Zone
Button 6
Zone
Button 7
Zone
Button 9
Zone
Button
10
Zone
Button
11
A
B
Zone
Button 1
Zone
Button 2
Zone
Button 3
Zone
Botton 8
Zone
Button 4
Zone
Button
12
Local Att
LED Test
Fault
Ack
MS12 /
Monitor
PUSH TO TALK
Local Att
LED Test
Fault
Ack
MS12 /
Monitor
Local Att
LED Test
Fault
Ack
MS12 /
Monitor
Local Att
LED Test
Fault
Ack
MS12 /
Monitor
Important
Message
Alarm
Cancel
Health
Auto Initiate
Comms
Auto Inhibit
Intercom
Busy
STATUS
B
A
0%
100%
VU Meter
PA/GA
System
Normal
Alarm
1
2
3
4
PA/GA
System
Zoned
Alarm
1
2
3
4
1 2 3 4
5 6 7 8 9 10 11 12
13
Alarm 1
Alarm 2
Alarm 3
Alarm 4
Alarm 5
Alarm 6
Zone
Button 5
Zone
Button 6
Zone
Button 7
Zone
Button 9
Zone
Button
10
Zone
Button
11
Zone
Button 1
Zone
Button 2
Zone
Button 3
Zone
Botton 8
Zone
Button 4
Zone
Button
12
1
2
PA/GA
System
Normal
Alarm
1
2
3
4
PA/GA
System
Zoned
Alarm
1
2
3
4
1 2 3 4
5 6 7 8 9 10 11 12
13
Alarm 1
Alarm 2
Alarm 3
Alarm 4
Alarm 5
Alarm 6
Zone
Button 5
Zone
Button 6
Zone
Button 7
Zone
Button 9
Zone
Button
10
Zone
Button
11
Zone
Button 1
Zone
Button 2
Zone
Button 3
Zone
Botton 8
Zone
Button 4
Zone
Button
12
1
2

1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
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14
SONIXTM Hmi-26 Technical Manual
SONIX HMI26 TECHNICAL MANUAL TM375 / A June 2022 www.eaton.com
PA/GA
System
Normal
Alarm
1
2
3
4
PA/GA
System
Zoned
Alarm
1
2
3
4
1 2 3 4
5 6 7 8 9 10 11 12
13
Alarm 1
Alarm 2
Alarm 3
Alarm 4
Alarm 5
Alarm 6
Zone
Button 5
Zone
Button 6
Zone
Button 7
Zone
Button 9
Zone
Button
10
Zone
Button
11
Zone
Button 1
Zone
Button 2
Zone
Button 3
Zone
Botton 8
Zone
Button 4
Zone
Button
12
1
2
Figure 10 - Zoned Alarm activation
Please refer to section 5.6 and the SAS manual for more
information on conguration of Zoning.
4.3.3 Alarm Cancel
The Alarm Cancel button is provided to allow a user to
clear or ‘cancel’ active alarms on the system. Please
note that once pressed there is no method of un-
actioning an Alarm Cancel.
Activating the alarm cancel button will send a signal to
the PA/GA system asking it to clear out the currently
active alarms on that system. If the activation input is
still active, for example a remote push-button connected
into the IO-Tu, then the alarm will immediately re-
activate (although the audio will pause for up to a
second). The alarm cancel signal self clears after ~4
seconds to prevent a faulty button or something resting
on the button permanently activating it from preventing
future activation from another source.
The alarm cancel button can be disabled in conguration
to prevent the access panel from sending the alarm
cancel signal, use this for access panels located in less
secure areas.
The LED shows the following status:
• None – Alarm Cancel is NOT active on the system
• Solid Orange – Alarm cancel is active on the system
and been activated from this access panel
• Flashing Orange (~ 0.5 Hz) – Alarm cancel is active on
the system but was activated by a different source
4.3.4 Alarm Attenuate
Alarm attenuate is provided to reduce the volume of the
currently active alarm on the system to a lower, pre-set
volume. The volume is controlled by the PA/GA system
controller, see Sonix 2Mx Technical Manual for details.
The alarm attenuate feature is a toggle action, each
press on the button causes the system to invert the
state of alarm attenuate. There is a ~1 second dead time
after each button press, this is to allow the system to
properly change state and ensure that the audio output
is correctly controlled.
Pressing the alarm attenuate button while an alarm is
NOT active will cause the LEDs to ash for ~1 second
and then extinguish.
The LED shows the following status:
• None – Alarm Attenuate is NOT active on the system
• Solid Orange – Alarm attenuate is locally active and
waiting on the system activating alarm attenuate
• Fast flashing Orange (~5 Hz) – System is changing
state of alarm attenuate (temporary state)
• Flashing Orange (~0.5 Hz) – Alarm attenuate is active
on the system
The button can be disabled in conguration, but the LED
will continue to function.

1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
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1
1
1
1
1
1
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1
15
SONIXTM Hmi-26 Technical Manual
SONIX HMI26 TECHNICAL MANUAL TM375 / A June 2022 www.eaton.com
4.4 Making a speech broadcast
Speech broadcasts on Sonix systems are made up of
three parts;
• the audio from the user,
• a priority set by the access panel/source, and
• a zone map to define where the broadcast needs
to go.
4.4.1 Priority
The priority within the Sonix PA/GA is a two-part
system:
1. Firstly, the activity type has a basic priority order:
• Emergency Speech (Higher)
• Alarms
• Routine Speech (Lower)
2. Secondly, the audio source unit has priority number
ranging from 1 to 31, where 1 is the lowest and 31 is
the highest priority.
Warning: Priority is congured on a unit basis
and must be unique across the system to the
controller it is connected to. The Hmi-26 should
have both A & B sides, if both are in use, set to
the same priority.
Emergency Speech
31 Highest
…
1
Alarms
Alarm 1
…
Alarm 12
Routine Speech
31
…
1Lowest
4.4.2 Zoning
Before activating PTT to make an announcement, the
user can select the required zoning for the broadcast.
This is achieved by pressing the zone button associated
with the required zones. Each button has a toggle action
with the selection being held for between 2 and 6
seconds or indenitely *.
* Warning: If conguring an Hmi-26 to have no zoning
timeout, i.e. toggle only, please note that the alarm
activation and emergency speech buttons will also
follow any pre-selected zone buttons and will NOT be
All-Call as might be expected.
Figure 12 - Available zone buttons
The associated LEDs with each zone button display
the status of the system and local access panel for the
zones they have been congured to work with, i.e. if
a zone button is congured to be All-Call it will only
illuminate when the system is generating All-Call.
Zone button LEDs have the following states:
• Not active – Configured Zone(s) are not active on the
system
• Fast Flashing Orange & Fast Flashing Yellow – Button
is pre-selected for broadcast
• Flashing Orange – Configured Zone(s) have an Alarm
active
• Flashing Yellow – Configured Zone(s) have a speech
broadcast active
• Flashing Orange & Flashing Yellow – Configured
Zone(s) have an Alarm active with an Emergency
speech active over the top
• Solid Orange – Configured Zone(s) have an Alarm
active from the local panel
• Solid Yellow – Configured Zone(s) have a broadcast
active from the local panel
4.4.3 Zone conguration
Zone button and zone mapping conguration is
calculated as part of system design, please discuss your
requirements with your local Eaton representative.
See section 5.6 for more details on Zone mapping
conguration.
Alarm 1
Alarm 2
Alarm 3
Alarm 4
Alarm 5
Alarm 6
B
A
Alarm
Cancel
Alarm
Attenuate
Zone
Button 5
Zone
Button 6
Zone
Button 7
Zone
Button 9
Zone
Button
10
Zone
Button
11
A
B
Zone
Button 1
Zone
Button 2
Zone
Button 3
Zone
Botton 8
Zone
Button 4
Zone
Button
12
Local Att
LED Test
Fault
Ack
MS12 /
Monitor
PUSH TO TALK
Local Att
LED Test
Fault
Ack
MS12 /
Monitor
Local Att
LED Test
Fault
Ack
MS12 /
Monitor
Local Att
LED Test
Fault
Ack
MS12 /
Monitor
Important
Message
Alarm
Cancel
Health
Auto Initiate
Comms
Auto Inhibit
Intercom
Busy
STATUS
B
A
0%
100%
VU Meter

1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
16
SONIXTM Hmi-26 Technical Manual
SONIX HMI26 TECHNICAL MANUAL TM375 / A June 2022 www.eaton.com
4.4.4 Default zone map
If no zone buttons have been activated the Hmi-
26 access panel can be congured to automatically
activate 1 or more of the 12 Zone buttons, this is set in
conguration and does not refer to zones 1-12 but rather
the Zone buttons 1-12 and their corresponding zone map
congurations. If no default zone buttons are congured,
then no broadcast will occur when PTT is pressed
without rst manually selecting at least 1 zone button.
Warning: Missing Zone maps can lead to missing
or empty broadcasts.
4.4.5 Microphone input
The microphone input on the Hmi-26 can be either a
Goose-Neck microphone connected to the chassis or a
Hand-Held microphone on a exible coiled lead.
The Goose-Neck microphone has a hyper-cardioid
response and care should be taken not grip the
microphone too hard around the top as covering the air
path to the rear of the microphone can have an adverse
effect on the quality of the audio output.
The Goose-Neck microphone should be positioned
approximately 8-12 cm from the speakers’ mouth to
achieve best quality on broadcasts. Whereas the
Hand-Held microphone is designed to be held closer to
the talker, in the 4-8 cm range.
Figure 13 - Suggested microphone positioning
The microphone sensitivity can be adjusted on request,
please contact your local Eaton representative.
4.4.5.1 VU meter
The approximate volume of the microphone input audio
is displayed in real-time on the VU meter, found on the
right-hand side of the Hmi-26 unit. Operators should try
to keep the volume out of the red zone and in the
green zone.
Figure 14 - VU Meter
4.4.6 Routine speech
Figure 15 - Push to talk button
A Routine speech broadcast is activated by pressing the
Push to Talk (PTT) button, found below the Status LED
area. In case of a Hand-Held microphone the PTT button
is on the microphone itself.
The LEDs on the PTT button have the following modes:
• None – No speech is active on the system
• Flashing Green (~0.5 Hz) – Speech is active on the
system, but this panel is not PTT active
• Solid Green – PTT is active on this panel
The PTT button can be disabled in conguration, this will
prevent all speech broadcasts from the access panel.
8–12 cm
4–8 cm
Message
1
Message
2
Message
3
Message
4
Message
5
Message
6
Message
7
Message
8
Message
9
Message
10
Message
11
Message
12
MS12
1
2
Health
Auto-
Initiate
Comms
Intercom
Auto-
Inhibit
Busy
Alarm 1
Alarm 2
Alarm 3
Alarm 4
Alarm 5
Alarm 6
B
A
Alarm
Cancel
Alarm
Attenuate
Zone
Button 5
Zone
Button 6
Zone
Button 7
Zone
Button 9
Zone
Button
10
Zone
Button
11
A
B
Zone
Button 1
Zone
Button 2
Zone
Button 3
Zone
Botton 8
Zone
Button 4
Zone
Button
12
Local Att
LED Test
Fault
Ack
MS12 /
Monitor
PUSH TO TALK
Local Att
LED Test
Fault
Ack
MS12 /
Monitor
Local Att
LED Test
Fault
Ack
MS12 /
Monitor
Local Att
LED Test
Fault
Ack
MS12 /
Monitor
Important
Message
Alarm
Cancel
Health
Auto Initiate
Comms
Auto Inhibit
Intercom
Busy
STATUS
B
A
0%
100%
VU Meter
Alarm 1
Alarm 2
Alarm 3
Alarm 4
Alarm 5
Alarm 6
B
A
Alarm
Cancel
Alarm
Attenuate
Zone
Button 5
Zone
Button 6
Zone
Button 7
Zone
Button 9
Zone
Button
10
Zone
Button
11
A
B
Zone
Button 1
Zone
Button 2
Zone
Button 3
Zone
Botton 8
Zone
Button 4
Zone
Button
12
Local Att
LED Test
Fault
Ack
MS12 /
Monitor
PUSH TO TALK
Local Att
LED Test
Fault
Ack
MS12 /
Monitor
Local Att
LED Test
Fault
Ack
MS12 /
Monitor
Local Att
LED Test
Fault
Ack
MS12 /
Monitor
Important
Message
Alarm
Cancel
Health
Auto Initiate
Comms
Auto Inhibit
Intercom
Busy
STATUS
B
A
0%
100%
VU Meter

1
1
1
1
1
1
1
1
1
1
1
1
1
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SONIXTM Hmi-26 Technical Manual
SONIX HMI26 TECHNICAL MANUAL TM375 / A June 2022 www.eaton.com
4.4.6.1 PTT Release Delay
The Hmi-26 has a conguration option called PTT
Release Delay, commonly called a ‘Slug Time’. This
setting makes the access panel internally keep the PTT
button active for between 1 and 3 seconds after release,
to allow a user to correct for a nger slipping off the
button unintentionally.
ote:N Installations using both A & B side of the Hmi-26 should ensure
both sides have identical audio configuration to prevent audio artefacts
breaking onto the PA/GA system.
This feature can be disabled in conguration by setting the PTT
Release Delay to None, see SAS Product Manual for details.
4.4.6.2 Routine Chime
The Hmi-26 can be congured to play one of three
different chimes before each routine speech broadcast,
the chimes are referred to as single, double and triple
bong. Selection of a chime creates a delay between
activating PTT and routing voice to the PA/GA system
while the chime plays.
Chime
Name SOUND NOTES
Single Bong 660Hz decaying gong over
~4seconds
Double Bong 660Hz then 550Hz decaying gongs
over ~5.5seconds
The decaying gongs
have the new gong
superimposed over the
top after ~1.1s
Triple Bong 660Hz then 550Hz then 400Hz
decaying gongs over ~7seconds
None No chime No chime is generated,
voice is routed to the
system without delay
Table 5 - Available Routine Speech Chimes
Chime for routine speech broadcasts can be disabled in
conguration, see SAS Product Manual for details.
4.4.6.3 PTT Timeout
The audio system on the Hmi-26 can be congured to
have a maximum transmit time, called PTT Timeout.
When this setting is active the access panel will
automatically cancel the active PTT session if it exceeds
the time set in the conguration. Valid values range from
30 seconds to 120 seconds with no timeout also an
option.
If this timeout event occurs, the Hmi-26 access panel
will generate a PTT Timeout fault. This can be used
to identify situations where the PTT button has been
accidentally depressed or is no longer functioning
correctly.
The PTT timeout fault can be disabled in conguration,
see SAS Product Manual for details.
4.4.7 Emergency speech
Figure 16 - Important Message button
Emergency speech, in the Sonix PA/GA system referred
to as Important Message, is a method for increasing the
priority of a speech broadcast, combined with a different
announcement tone. Within the Sonix PA/GA system
agging a broadcast as an emergency speech is the only
way to broadcast speech over an active alarm.
Emergency speech is selected by pressing the
Important Message button, this button is a toggle
button with timeout. The timeout is ~30 seconds since
the feature was activated or since the last Emergency
speech broadcast from the access panel nished.
Zoning with Emergency speech is All-Zones by default
but can congured to be zoned using the same method
detailed above for routine speech before pressing the
PTT button.
The Important Message LED has the following
characteristics:
• None – Emergency speech is NOT active on the
system
• Flashing Orange (~0.5Hz) – Remote Emergency
speech is active on the system
• Solid Orange – Local panel is flagged for Emergency
speech (not necessarily active)
Alarm 1
Alarm 2
Alarm 3
Alarm 4
Alarm 5
Alarm 6
B
A
Alarm
Cancel
Alarm
Attenuate
Zone
Button 5
Zone
Button 6
Zone
Button 7
Zone
Button 9
Zone
Button
10
Zone
Button
11
A
B
Zone
Button 1
Zone
Button 2
Zone
Button 3
Zone
Botton 8
Zone
Button 4
Zone
Button
12
Local Att
LED Test
Fault
Ack
MS12 /
Monitor
PUSH TO TALK
Local Att
LED Test
Fault
Ack
MS12 /
Monitor
Local Att
LED Test
Fault
Ack
MS12 /
Monitor
Local Att
LED Test
Fault
Ack
MS12 /
Monitor
Important
Message
Alarm
Cancel
Health
Auto Initiate
Comms
Auto Inhibit
Intercom
Busy
STATUS
B
A
0%
100%
VU Meter

1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
18
SONIXTM Hmi-26 Technical Manual
SONIX HMI26 TECHNICAL MANUAL TM375 / A June 2022 www.eaton.com
4.4.7.1 Emergency speech chime
The Hmi-26 can be congured to play one of three
different chimes before each emergency speech
broadcast, the chimes are different to the routine speech
chimes. Selection of a chime creates a delay between
activating PTT and routing voice to the PA/GA system
while the chime plays.
Available chimes on the Hmi-26 are:
Chime
Name Sound Notes
Chime 1 1 kHz tone for 1second Long beep
Chime 2 1 kHz tone 400ms ON
400ms OFF 400ms ON
Double beep
Chime 3 1 kHz tone 100ms ON
100ms OFF repeated 5
times
Multiple fast beeps
None No chime No chime is generated, and voice is
routed to the system without delay
Table 6 - Available Emergency Speech Chimes
Chime for emergency speech broadcasts can be
disabled in conguration, see SAS Product Manual for
details.
4.4.7.2 Emergency speech auto-elevate
Emergency speech can also be congured to
automatically activate when a pre-congured alarm(s)
is active on the system and PTT is activated. The list of
alarms used to allow automatic elevation to emergency
speech is set in the Important Message Elevate
conguration option.
Emergency speech can be disabled by conguring the
access panel as follows:
Important Message Disabled
Important Message Elevate None selected
4.4.8 Mute and Attenuate outputs
The Hmi-26 access panel has outputs for controlling
speaker Mutes and speaker Attenuates, found on J9
and J10 (See Section 3.3.2 for connection details).
These outputs are controlled by the Hmi-26 and the user
operating it.
The Mute output activates when the Hmi-26 is the active
PTT broadcast on the PA/GA system. This approach
allows the user to hear any overriding broadcasts if they
are not the one active on the system.
4.4.8.1 Attenuate output
Additionally, the Hmi-26 has a second output intended to
control a local speaker attenuate. The attenuate feature
is provided to allow operators to reduce the volume of an
alarm in the local area. The attenuate output, identical to
the Mute output, activates on active PTT broadcast but
can additionally be controlled manually by the user.
Figure 17 - Local Attenuate button
The Local Attenuate button, located in the lower right
of the Hmi-26 access panel, can be used to toggle the
Local Attenuate output. The attenuate output will be
reset after any of the following events:
• Timeout of ~300 seconds since manual activation,
• Emergency speech active on the system,
• New higher priority alarm being activated,
• Alarm Cancel being activated.
ote:N The Local Attenuate button has an alternative function when dis-
abled and is used to control BGM playback, but the outputs will activate
for short periods of time in this mode. See section 4.5.6 on BGM.
4.5 Other features
4.5.1 LED Test
Figure 18 - LED Test button
The LED test feature activates all LEDs on the unit for
approximately 15 seconds on press of the LED Test
button. Most activity on the panel will cause the LED
test to end prematurely.
The LED Test feature has no congurable options.
Alarm 1
Alarm 2
Alarm 3
Alarm 4
Alarm 5
Alarm 6
B
A
Alarm
Cancel
Alarm
Attenuate
Zone
Button 5
Zone
Button 6
Zone
Button 7
Zone
Button 9
Zone
Button
10
Zone
Button
11
A
B
Zone
Button 1
Zone
Button 2
Zone
Button 3
Zone
Botton 8
Zone
Button 4
Zone
Button
12
Local Att
LED Test
Fault
Ack
MS12 /
Monitor
PUSH TO TALK
Local Att
LED Test
Fault
Ack
MS12 /
Monitor
Local Att
LED Test
Fault
Ack
MS12 /
Monitor
Local Att
LED Test
Fault
Ack
MS12 /
Monitor
Important
Message
Alarm
Cancel
Health
Auto Initiate
Comms
Auto Inhibit
Intercom
Busy
STATUS
B
A
0%
100%
VU Meter
Alarm 1
Alarm 2
Alarm 3
Alarm 4
Alarm 5
Alarm 6
B
A
Alarm
Cancel
Alarm
Attenuate
Zone
Button 5
Zone
Button 6
Zone
Button 7
Zone
Button 9
Zone
Button
10
Zone
Button
11
A
B
Zone
Button 1
Zone
Button 2
Zone
Button 3
Zone
Botton 8
Zone
Button 4
Zone
Button
12
Local Att
LED Test
Fault
Ack
MS12 /
Monitor
PUSH TO TALK
Local Att
LED Test
Fault
Ack
MS12 /
Monitor
Local Att
LED Test
Fault
Ack
MS12 /
Monitor
Local Att
LED Test
Fault
Ack
MS12 /
Monitor
Important
Message
Alarm
Cancel
Health
Auto Initiate
Comms
Auto Inhibit
Intercom
Busy
STATUS
B
A
0%
100%
VU Meter

1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
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SONIXTM Hmi-26 Technical Manual
SONIX HMI26 TECHNICAL MANUAL TM375 / A June 2022 www.eaton.com
4.5.2 Fault Reporting
4.5.2.1 Unit Monitoring
The Hmi-26 access panel has built in status monitoring
to detect any issues early. The following features are
monitored:
• Microphone input is monitored for open (high
impedance) and short (low impedance) condition,
• Internal Audio pathways are monitored using DTMF
signalling while unit is idle,
• Incoming Data communications from PA/GA system
are monitored for presence and quality of data,
• PTT is monitored for stuck switch – See section PTT
Timeout under section 4.4.6,
• Inter-FPGA health – The independent halves of the
Hmi-26 communicate with each other, loss of this
communication is considered a fault.
Some of these monitoring circuits can be disabled in
conguration, see SAS Product Manual for details.
4.5.2.2 Fault reporting
The Sonix PA/GA system has a robust fault reporting
system; all issues with individual units are reported
to the 2Mx central controller using the datagram
messages. Communication links and missing units are
also monitored by the 2Mx central controller. The 2Mx
central controller then forwards the datagrams on to the
software and sends a generic fault ag back to all the
connected units.
4.5.2.3 Fault Buzzer
When the Hmi-26 access panel detects a local fault, or
is informed of a system fault, the microphone will begin
to emit a fault buzzer noise at ~1 kHz.
ote:N The Hand-Held microphone option may not have a fault
buzzer output.
4.5.2.4 System Health LED
The Hmi-26 access will also show system and local
faults using the health LED. The LED will go solid Red
when the unit or system has a fault.
4.5.3 Fault Acknowledge (Fault buzzer mute)
Figure 19 - Fault Acknowledge button
The Fault Acknowledge button, found bottom right of
the Hmi-26 unit, is used by the operator to indicate
the fault has been observed. Pressing the button
once will mute the fault buzzer and illuminate the fault
acknowledge LEDs for a short period.
4.5.3.1 Fault Buzzer retrigger
The fault buzzer will be retriggered, i.e. restarted even
if muted, when a new fault is detected by either the
local panel or the system controller. This will cause
PA/GA systems with intermittent faults, i.e. those
that are coming and going regularly, to experience
increased fault buzzer activity. To reduce the impact of
this increase in fault buzzer activity on operators, the
Hmi-26 access panel has an option to limit fault buzzer
retriggering to every 30 minutes. De-activating the fault
buzzer retrigger option prevents a new fault from un-
muting the access panel for 30 minutes after the Fault
Acknowledge button was pressed.
Key settings:
Fault Buzzer Retrigger Disable
4.5.4 Global fault mute
If a fault occurs on the system, all attached Hmi-26
access panels will begin to emit a buzzing noise to
attract attention to the fault. Some access panels may
be installed in un-attended locations but acoustically
close enough to manned locations to cause annoyance.
To mitigate this issue the Sonix system has been
designed to allow for fault acknowledge to happen
globally, i.e. a single press on any one Hmi-26 access
panel will cause all access panels to mute their active
fault buzzers. To enable this feature, simply congure
the ‘Global fault acknowledge’ setting on all access
panels to enabled. The setting allows the sending of
the button press to the rest of the system. Disabling
this feature doesn’t prevent the fault buzzer from being
muted remotely or locally.
Key settings:
Global Fault Acknowledge Enable
Alarm 1
Alarm 2
Alarm 3
Alarm 4
Alarm 5
Alarm 6
B
A
Alarm
Cancel
Alarm
Attenuate
Zone
Button 5
Zone
Button 6
Zone
Button 7
Zone
Button 9
Zone
Button
10
Zone
Button
11
A
B
Zone
Button 1
Zone
Button 2
Zone
Button 3
Zone
Botton 8
Zone
Button 4
Zone
Button
12
Local Att
LED Test
Fault
Ack
MS12 /
Monitor
PUSH TO TALK
Local Att
LED Test
Fault
Ack
MS12 /
Monitor
Local Att
LED Test
Fault
Ack
MS12 /
Monitor
Local Att
LED Test
Fault
Ack
MS12 /
Monitor
Important
Message
Alarm
Cancel
Health
Auto Initiate
Comms
Auto Inhibit
Intercom
Busy
STATUS
B
A
0%
100%
VU Meter

1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
20
SONIXTM Hmi-26 Technical Manual
SONIX HMI26 TECHNICAL MANUAL TM375 / A June 2022 www.eaton.com
4.5.5 Global fault reset
The Sonix PA/GA system has ability to allow faults to
‘reset’ or be cleared remotely. This does not change the
state of the system, i.e. doesn’t cancel any active alarms
or broadcasts. Please see the 2Mx controller manual for
more details on fault reset. This feature is useful when
system cabinets are in a restricted space.
To action a remote fault reset, the Hmi-26 unit must be
congured to send the ‘Global fault acknowledge’ by
setting it to enabled. This feature is useful in situations
where a fault has already been rectied but the system
is showing a historical fault (Flashing Red health LED) as
it allows the clearing of the historical issue.
Once enabled the procedure for remote reset is simple:
press and hold Fault Ack for approximately 6 seconds or
until the system Health LED goes green.
ote:N Any faults still present, such as a split loop, will not be cleared by
remote fault reset, the fault will be re-engaged within a second.
Key settings:
Global fault acknowledge Enable
4.5.6 BGM (Background Music)
Background music is an optional feature of the Sonix PA/
GA system, its management and control are not covered
in this manual but the local attenuate key is re-purposed
to allow remote control of BGM.
To enable an Hmi-26 access panel to control BGM
the Local attenuate key must be set to Disabled in
conguration. This prevents the local attenuate output
from activating when the button is pressed.
ote:N Local Attenuate output will still activate on both PTT and for ~1
second on activation of the button.
Key settings:
Local Attenuate Disabled
4.5.7 Engineers Panel
An Engineers Panel is intended to activate a single
side, A or B, of a system to facilitate fault nding
and performance monitoring without the other side
interfering/confusing the diagnostics.
An Engineers panel activity has a different priority
than a normal access panel. Both alarms and routine
speech sit below any other input on the system bar
background music. This has the practical application that
an Engineer’s alarm can be overridden by routine speech
broadcasts from another source. Emergency speech
from the Engineers’ Panel is positioned like a normal
access panel in the priority list, that is just above alarms
but below other access panels. This allows the panel to
broadcast on the system in the case of a non-Engineers’
alarm being active. The Sonix feature, AB+, is designed
to distribute inputs from one system to the second to
allow any missing inputs to active the entire PA/GA
system. This feature would cause an Engineers Panel
to broadcast on all speakers and beacons, defeating the
purpose of the Engineers Panel, except that the Sonix
Hmi-26 has a special priority value which prevents AB+
interfering with Engineers Panel operation.
The Sonix PA/GA system has been designed to allow a
single Engineers panel per 2Mx controller. If an Hmi-
26 unit is intended to be used as the Engineers Panel,
it MUST be congured to have a priority of 2 (its unit
ID is not important). It must also be connected to local
system ONLY. Eaton suggests that only the ‘A’ side is
connected no matter whether to an A or B system, but
this is not essential.
Key settings:
Priority 2
4.5.8 Ms12 Remote initiation
The Hmi-26 access panel can be used to remotely
initiate a message recorded on the Sonix Ms12 unit.
The remote initiation can only play a message that is
already loaded and is not disabled in the conguration.
Please see the Ms12 manual for further information and
instructions.
To initiate playback, rst press the Ms12 (sometimes
labelled as ‘Monitor’) button, then press the zone button
corresponding to the message required. If the system
is busy then the Ms12 can be congured to ‘queue’ the
playback request until the system is available or the
request times out, see the Ms12 manual for details.
The zoning for the message playback is set in the Ms12
conguration and cannot be dictated from the Hmi-26.
The Ms12/Monitor button can be disabled in
conguration, see SAS Product Manual for details.
Figure 20 - MS12 Remote playback initiation
Key settings:
MS12 Message Button Enabled
8–12 cm
4–8 cm
Message
1
Message
2
Message
3
Message
4
Message
5
Message
6
Message
7
Message
8
Message
9
Message
10
Message
11
Message
12
MS12
1
2
Health
Auto-
Initiate
Comms
Intercom
Auto-
Inhibit
Busy
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