Clear-Com HelixNet Partyline User manual

Partyline User Guide
PN: 399G052 Rev: B 06/19/13

Document Reference
Clear-Com HelixNet Partyline User Guide
Part Number: 399G052 Revision: B
Legal Disclaimers
Copyright © 2013 HME Clear-Com Ltd.
All rights reserved.
Clear-Com, the Clear-Com logo, and Clear-Com Concert are trademarks or registered trademarks of HM
Electronics, Inc.
The software described in this document is furnished under a license agreement and may be used only in
accordance with the terms of the agreement.
The product described in this document is distributed under licenses restricting its use, copying,
distribution, and decompilation/reverse engineering. No part of this document may be reproduced in any
form by any means without prior written authorization of Clear-Com, an HME Company.
Clear-Com Offices are located in California, USA; Cambridge, UK; Montreal, Canada; and Beijing, China.
Specific addresses and contact information can be found on Clear-Com’s corporate website:
www.clearcom.com
Clear-Com Contacts
Americas and Asia-Pacific Headquarters
California, United States
Tel: [phone]
Email: [e-mail]
Europe, Middle East, and Africa Headquarters
Cambridge, United Kingdom
Tel: [phone]
Email: [e-mail]
Canada Office
Quebec , Canada
Tel: [phone]
China Office
Beijing Representative Office
Beijing, P.R.China
Tel: [phone]
2 HelixNet Partyline User Guide

Contents
Document Reference................................................................................................................................2
1Introduction............................................................................................................. 9
1.1 Audience .......................................................................................................................................9
1.2 Important Safety instructions.......................................................................................................10
1.2.1 Safety symbols....................................................................................................................11
1.3 Further information......................................................................................................................11
2User Interfaces...................................................................................................... 12
2.1 HMS-4X Main Station: Front panel.............................................................................................12
2.1.1 HMS-4X Main Station front panel: Channel keyset.............................................................15
2.2 HMS-4X Main Station: Rear panel..............................................................................................17
2.2.1 HMS-4X Main Station rear panel: Interface modules..........................................................21
2.3 HBP-2X Beltpack ........................................................................................................................23
2.3.1 HBP-2X user controls (front and side view)........................................................................23
2.3.2 HBP-2X connectors and controls (rear view)......................................................................25
2.3.3 HBP-2X beltclip, beltloops and feet (base view).................................................................27
3Installing HelixNet Partyline................................................................................. 28
3.1 Planning your HelixNet Partyline installation ..............................................................................29
3.1.1 Comparing digital with analog cabling ................................................................................29
3.1.2 Topologies (layouts)............................................................................................................31
3.2Installing HelixNet Partyline ........................................................................................................32
3.2.1 Environmental information ..................................................................................................32
3.2.2 Installing the HMS-4X Main Station ....................................................................................32
3.2.3 Installing the HBP-2X Beltpacks .........................................................................................33
4Linking Main Stations........................................................................................... 35
4.1 Linking scenarios ........................................................................................................................35
4.1.1 Linking two Main Stations with Ethernet.............................................................................36
4.1.2 Linking two Main Stations with Fiber...................................................................................37
4.1.3 Linking three Main Stations in a daisy chain.......................................................................38
4.1.4 Network connections...........................................................................................................39
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4.1.5 Multiple Groups in the same IP Network.............................................................................40
4.1.6 Resource Sharing between Linked Stations.......................................................................41
4.2 Networking Specifications...........................................................................................................43
5Configuring and Managing the HMS-4X Main Station ....................................... 44
5.1 Using the Menus.........................................................................................................................44
5.1.1 Configuring settings ............................................................................................................44
5.1.2 Exiting Menu mode .............................................................................................................45
5.2 Configuring the Audio settings....................................................................................................45
5.2.1 Audio settings for the headset.............................................................................................45
5.2.2 Audio settings for the microphone.......................................................................................47
5.2.3 Audio settings for the Program Input...................................................................................47
5.2.4 Audio settings for Program IFB [Interruptible Foldback].....................................................48
5.2.5 Audio settings for the SA [Stage Announce] Output...........................................................48
5.2.6 Audio settings for the Hot Mic Output.................................................................................49
5.2.7 Audio settings for the Front Panel.......................................................................................49
5.3 Setting Station Settings...............................................................................................................50
5.3.1 Setting Preferences.............................................................................................................50
5.3.2 Setting Keyset Assignments ...............................................................................................50
5.3.3 Setting key latching.............................................................................................................50
5.3.4 Setting the RMK (Remote Mic Kill) key...............................................................................51
5.3.5 Setting display screen brightness .......................................................................................52
5.3.6 Setting key brightness.........................................................................................................52
5.3.7 Setting the screensaver ......................................................................................................53
5.4 Configuring the channel settings.................................................................................................53
5.4.1 Editing the channel label.....................................................................................................53
5.4.2 Assigning the Program Listen to a channel ........................................................................54
5.5 Configuring the Control I/O .........................................................................................................55
5.5.1 Configuring Opto inputs ......................................................................................................55
5.5.2 Configuring Relay outputs...................................................................................................56
5.6 Configuring Module Settings.......................................................................................................56
5.6.1 Configuring a Four-wire interface module...........................................................................57
5.6.2 Configuring a Two-wire interface module ...........................................................................59
5.6.3 Configuring an Ethernet or Fiber interface module.............................................................63
5.6.4 Configuring the Module Settings: Version information........................................................65
5.7 Administration..............................................................................................................................65
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5.7.1 Viewing the current versions of the software......................................................................65
5.7.2 Updating the software.........................................................................................................66
5.7.3 Locking and unlocking the HBP-2X beltpack menus..........................................................67
5.7.4 Resetting the Main Station to default (factory mode) settings............................................67
5.7.5 Manually rebooting the Main Station...................................................................................67
5.7.6 Saving and restoring the software settings.........................................................................68
5.8 Diagnostics..................................................................................................................................68
5.8.1 Viewing hardware information.............................................................................................68
5.8.2 Viewing temperature information ........................................................................................69
5.8.3 Viewing powerline information and status...........................................................................69
5.8.4 Viewing keysets information................................................................................................70
6Configuring and Managing the HBP-2X Beltpack.............................................. 71
6.1 Using the Menus.........................................................................................................................71
6.1.1 Configuring settings ............................................................................................................71
6.1.2 Exiting Menu mode .............................................................................................................72
6.2 Configuring the Audio settings....................................................................................................72
6.3 Audio settings for the microphone...............................................................................................74
6.4 Configuring the Beltpack Settings...............................................................................................74
6.4.1 Assigning channels.............................................................................................................75
6.4.2 Setting Talk key latching.....................................................................................................76
6.4.3 Setting the beltpack to vibrate when called.........................................................................76
6.5 Configuring the Display Settings.................................................................................................76
6.5.1 Setting display screen brightness .......................................................................................77
6.5.2 Setting the brightness of the Talk and Call keys.................................................................77
6.5.3 Setting the screensaver ......................................................................................................78
6.6 Administration..............................................................................................................................78
6.6.1 Viewing the IP address .......................................................................................................78
6.6.2 Resetting the beltpack to default (factory mode) settings...................................................79
6.7 Diagnostics..................................................................................................................................79
6.7.1 Viewing the hardware (main PCB) on the beltpack ............................................................79
6.7.2 Viewing powerline information and status...........................................................................79
7Using the HMS-4X Main Station........................................................................... 80
7.1 Using the gooseneck mic, loudspeaker and headset .................................................................80
7.1.1 Switching between the headset mic and the gooseneck mic .............................................82
7.2 Entering and exiting Menu mode ................................................................................................82
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7.3 Using the channel keysets..........................................................................................................83
7.4 Using the All Talk key..................................................................................................................84
7.5 Using the SA [Stage Announce] key...........................................................................................84
7.6 Using the RMK [Remote Mic Kill ] key ........................................................................................84
7.7 Line 1 and 2 LEDs.......................................................................................................................84
8Using the HBP-2X Beltpack ................................................................................. 85
8.1 Using the beltpack keysets .........................................................................................................85
8.2 Entering and exiting Menu mode ................................................................................................86
8.3 Adjusting the Program Feed volume level..................................................................................86
9Connecting to Other Intercom Systems ........................................................... 87
9.1 Connecting HelixNet Partyline to Encore....................................................................................87
9.1.1 About Encore.......................................................................................................................87
9.1.2 Quick reference: Connecting to Encore..............................................................................88
9.1.3 Connecting to an Encore Main Station ...............................................................................89
9.1.4 Connecting to Encore remote stations................................................................................90
9.2 Connecting HelixNet Partyline to RTS (Telex) two-wire systems...............................................90
9.2.1 About RTS two-wire systems..............................................................................................90
9.2.2 Quick reference: Two-wire connection to RTS 2W system ................................................91
9.2.3 Connecting to an RTS (Telex) intercom station..................................................................92
9.3 Connecting HelixNet Partyline to Tempest.................................................................................93
9.3.1 About Tempest....................................................................................................................93
9.3.2 Quick reference: Two-wire connection to Tempest.............................................................94
9.3.3 Two-wire connection to Tempest........................................................................................95
9.3.4 Quick reference: Four-wire connection to Tempest............................................................97
9.3.5 Four-wire connection with Tempest....................................................................................98
9.4 Connecting HelixNet Partyline to CellCom / FreeSpeak.............................................................99
9.4.1 About CellCom / FreeSpeak ...............................................................................................99
9.4.2 Quick reference: Two-wire connection to CellCom / FreeSpeak......................................100
9.4.3 Two-wire connection to CellCom / FreeSpeak..................................................................101
9.4.4 Quick reference: Four-wire connection to CellCom / FreeSpeak .....................................102
9.4.5 Four-wire connection to CellCom / FreeSpeak.................................................................103
9.5 Connecting HelixNet Partyline to the DX210............................................................................103
9.5.1 About the DX210...............................................................................................................103
9.5.2 Quick reference: Two-wire connection to DX210..............................................................104
9.5.3 Two-wire connection to the DX210...................................................................................105
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9.5.4 Quick reference: Four-wire connection to DX210.............................................................107
9.5.5 Four-wire connection to the DX210...................................................................................108
9.6 Connecting HelixNet Party-line to Eclipse ................................................................................109
9.6.1 About Eclipse ....................................................................................................................109
9.6.2 Quick reference: Two-wire connection to Eclipse.............................................................110
9.6.3 Two-wire connection to an Eclipse Median system frame................................................111
9.6.4 Quick reference: Four-wire connection to Eclipse ............................................................113
9.6.5 Four-wire connection to Eclipse........................................................................................114
10 Specifications ..................................................................................................... 115
10.1 Main Station (HMS-4X).............................................................................................................115
10.1.1 Connectors........................................................................................................................115
10.1.2 Microphone pre-amplifier ..................................................................................................115
10.1.3 Headphone amplifier.........................................................................................................116
10.1.4 Loudspeaker amplifier.......................................................................................................116
10.1.5 Program line input and Four-wire option module inputs ...................................................117
10.1.6 Four-wire module outputs .................................................................................................117
10.1.7 Stage Announce outputs...................................................................................................117
10.1.8 Hot Mic output...................................................................................................................118
10.1.9 Helix Digital Partyline ........................................................................................................119
10.1.10 Ethernet.........................................................................................................................119
10.1.11 Mains power..................................................................................................................120
10.1.12 Environmental ...............................................................................................................120
10.1.13 Dimensions and weight.................................................................................................120
10.2 Two-wire module: general.........................................................................................................121
10.2.1 Connectors........................................................................................................................121
10.2.2 Dimensions and weight.....................................................................................................121
10.2.3 Power requirements (external)..........................................................................................121
10.2.4 Environmental ...................................................................................................................121
10.3 Four-wire module: general........................................................................................................122
10.3.1 Connectors........................................................................................................................122
10.3.2 Dimensions and weight.....................................................................................................122
10.3.3 Environmental ...................................................................................................................122
10.4 Beltpack (HBP-2X)....................................................................................................................123
10.4.1 Connectors........................................................................................................................123
10.4.2 Microphone pre-amplifier ..................................................................................................123
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10.4.3 Headphone amplifier.........................................................................................................124
10.4.4 Power requirements..........................................................................................................124
10.4.5 Environmental ...................................................................................................................124
Appendix A: Compliance...................................................................................... 125
Appendix B: Menu maps ...................................................................................... 127
Appendix C: Cabling reference............................................................................ 138
Appendix D: Troubleshooting.............................................................................. 140
8 HelixNet Partyline User Guide

1 Introduction
This guide is intended to help you install, configure, and use the HelixNet Partyline™system.
HelixNet Partyline is a digital intercom system, featuring the award-winning I.V Core Technology from
Clear-Com®. The system is designed to be as simple to use and configure as a two-wire intercom /
analog Partyline system, while exploiting the flexibility and network management capabilities of a matrix
system.
To expedite integration with your existing intercom infrastructure, HelixNet Partyline also features:
•Highly configurable Control I/O and Module settings.
•Flexible cabling options (microphone cable, fiber, CAT5).
•Optional Two-wire and Four-wire interface modules.
•Main Station linking.
1.1 Audience
Chapters / appendices
Target audience (roles)
2 User Interfaces
3 Installing HelixNet Partyline
4 Linking Main Stations
10 Specifications
Appendix A:Compliance
Appendix C:Cabling reference
Technicians and technical managers who have been
tasked with:
•Installing HelixNet Partyline.
•Integrating HelixNet Partyline with other intercom systems.
2 User Interfaces
4 Linking Main Stations
5 Configuring and Managing
the HMS-4X Main Station
6 Configuring and Managing
the HBP-2X Beltpack
10 Specifications
Appendix B: Menu maps
System administrators who have been tasked with configuring and
administrating HelixNet Partyline.
2User Interfaces
7 Using the HMS-4X
Main Station
8 Using the HBP-2X Beltpack
Users (operators) of the HelixNet main station and beltpacks.
Table 1: Audience
9 HelixNet Partyline User Guide

1.2 Important Safety instructions
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this apparatus near water.
6. Clean only with dry cloth.
7. Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.
8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus
(including amplifiers) that produce heat.
9. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has
two blades and a third grounding prong. The wide blade or the third prong are provided for your
safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of
the obsolete outlet.
10. Protect the power cord from being walked on or pinched particularly at plugs, convenience
receptacles, and the point where they exit from the apparatus.
11. Only use attachments/accessories specified by the manufacturer.
12. Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with
the apparatus. When a cart is used, use caution when moving the cart/apparatus combination to
avoid injury from tip-over.
13. Unplug this apparatus during lightning storms or when unused for long periods of time.
14. Refer all servicing to qualified service personnel. Servicing is required when the apparatus has
been damaged in any way, such as power-cord supply or plug is damaged, liquid has been
spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or
moisture, does not operate normally, or has been dropped.
15. Warning: To reduce the risk of fire or electric shock, do not expose this product to rain or
moisture.
10 HelixNet Partyline User Guide

1.2.1 Safety symbols
Familiarize yourself with the safety symbols in Figure 1: Safety symbols. These symbols are displayed
on the apparatus and warn you of the potential danger of electric shock if the system is used improperly.
Figure 1: Safety symbols
Important note:
For compliance notices, see Appendix A: Compliance.
1.3 Further information
For the latest information about HelixNet Partyline, including software updates, see:
http://www.clearcom.com/product/helixnet.
For information about Clear-Com accessories, including headsets [ ] and gooseneck mics
[ ], see http://www.clearcom.com/product/accessories.
For legal and contact information, see Page 2 of this guide.
11 HelixNet Partyline User Guide

2 User Interfaces
2.1 HMS-4X Main Station: Front panel
Figure 2: HMS-4X Main Station: Front panel
12 HelixNet Partyline User Guide

Key to HMS-4X Main Station: Front panel
Feature Description
A
Ear for rack mounting Main Station.
B
Headset socket (4-pin XLR–M)
Pin Function
1 Mic ground
2 Mic hot
3 Earphone ground
4 Earphone
Table 2: Headset socket pin out
C
Gooseneck microphone socket (3-pin female Tuchel connector)
D
Mic control [ MIC ON]. Press to activate mic audio.
E
Headset key [ HSET]. Press to activate the headset mic. When the headset is
connected, the gooseneck microphone is disconnected. Audio output to the
loudspeaker is diverted to the headphones.
F
Menu. Press to display the main station menus in the display screens [
G
]. Use the
rotary control [
H
] for each display screen to scroll and select menu items. See 2.1.1
HMS-4X Main Station front panel: Channel keyset.
G
Channel keyset. There is a keyset (set of controls) dedicated to each of the four
available channels. See 2.1.1 HMS-4X Main Station front panel: Channel keyset.
See 2.1.1 HMS-4X Main Station front panel: Channel keyset.
H
Stage Announce [SA]. Press to talk to connected Public Address (PA) / Stage
Announce (SA) system (see 2.2 HMS-4X Main Station: Rear panel).
When the SA is pressed, Mic select [MIC ON] is also lit bright red, indicating that mic
audio is active.
See 7.5 Using the SA [Stage Announce] key.
13 HelixNet Partyline User Guide

I
LEDs for lines 1 and 2 (partylines). The LEDs indicate the status of the intercom
circuit powering. When an LED is lit:
•Green, the line is functioning.
•Amber, the line is busy.
•Red, there is an error or fault on the line.
If there is a fault on a powerline output, the Line STATUS indicator for that channel will
turn off and the red FAULT indicator will flash. Possible causes of a fault include
overvoltage, overcurrent, short circuit to ground or severe brown-outs.
J
Loudspeaker. When a headset is connected [
B
] and selected [
E
], loudspeaker
output is diverted to the headphones.
K
Program feed audio level rotary control [Program].
To increase the volume of the program feed to the loudspeaker / headphones, turn
clockwise (up to 360°).
To decrease the volume, turn anticlockwise (up to 360°). As you increase or decrease
the volume, the level control LEDs pass through a range of indicator colors:
LED color
Volume level
Green
Low
Amber / Green
Low / Medium
Amber
Medium
Red / Amber
Medium / High
Red
High
Table 3: Volume Indicator colors
L
Loudspeaker / Headphone audio level rotary control [Main]. To increase the volume
to the loudspeaker / headphones, turn clockwise (up to 360°). To decrease the volume,
turn anticlockwise (up to 360°).
As you increase or decrease the volume, the level control LEDs pass through a range of
indicator colors. For more information, see Table 3: Volume Indicator colors above
[
K
].
M
Remote Mic Kill [RMK]. Press to:
•Send a message to all connected HelixNet HBP-2X beltpacks to deselect any
latched keyset Talk routes.
•Turn off any latched Talk routes on connected analog partyline beltpacks.
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N
All Talk. Press to talk to all channels (intercom devices and systems) connected to the
main station.
O
USB 2.0 (Micro-AB) connector. For software upgrades
(see 5.7.2 Updating the software and 5.7.5 Saving and restoring the software
settings.).
P
USB 2.0 (Standard-A) connector. For software upgrades
(see 5.7.2 Updating the software and 5.7.5 Saving and restoring the software
settings.).
Table 4: Key to HMS-4X Main Station front panel diagram
Important note:
The HMS-4X Main Station does not have a power switch, button or key. The system powers up when you
connect the power supply. Power up takes 15-20 seconds (depending on the number of beltpacks
connected).
2.1.1 HMS-4X Main Station front panel: Channel keyset
Figure 3: HMX-4 Main Station (Front panel): Keyset
15 HelixNet Partyline User Guide

Key to HMS-4X Main Station front panel: Channel keyset
Feature Description
A
Display screen. The following default information is displayed onscreen:
•The channel label [ ].
•The channel listen (volume) level [ ].
In Menu mode, the display screens display the four levels of menu. The menu
hierarchy proceeds left to right:
•The top level menu is presented in the first screen (furthest left on the front
panel).
•The lowest level menu is presented in the fourth screen (furthest right on the
front panel).
Note:
If the display is in Menu mode, the display screen times out of Menu mode and displays
the channel label if no key is pressed for 20 seconds.
For more information about Menu mode, see 5.1 Using the Menus.
B
Rotary control. Turn to increase or decrease the listen volume level for the channel, or
to scroll menu items when in menu mode. To select menu items, press (push) the
control.
C
Talk key. Press and hold for half a second to talk on the channel and to all nodes
(intercom devices and systems) listening into the channel.
D
Call key. Press to send a call signal to all nodes (intercom devices and systems)
listening into the channel.
Table 5: Key to HMS-4x Main Station front panel: Key Set
Note:
If the HMS-4X Main Station remains inactive for 10 minutes, the display screens enter screensaver mode
(see 5.3.7 Setting the screensaver).
16 HelixNet Partyline User Guide

2.2 HMS-4X Main Station: Rear panel
Figure 4: HMS-4X Main Station: Rear panel
17 HelixNet Partyline User Guide

Key to HMS-4X Main Station: Rear panel
Feature Description
A
Power supply with metal cable restrainer. The power supply operates at 100 - 240
VAC / 50-60Hz / 250 watts / T 3.15A H 250 V.
B
Control I/O (25 way female D-type). Use to connect up to 4relay control outputs or 4
optically isolated control inputs (see 5.5 Configuring the Control I/O).
Pin
Function
Pin
Function
Pin 1
Relay 1 NC
Pin 14
Relay1 Pole
Pin 2
Relay 1-NO
Pin 15
Relay 2 NC
Pin 3
Relay2-Pole
Pin 16
Relay 2-NO
Pin 4
Relay 3 NC
Pin 17
Relay3 Pole
Pin 5
Relay 3-NO
Pin 18
Relay 4 NC
Pin 6
Relay4-Pole
Pin 19
Relay 4-NO
Pin 7
Pin 20
+5V
Pin 8
GND
Pin 21
+5V
Pin 9
GND
Pin 22
Opto 1-
Pin 10
Opto 1+
Pin 23
Opto 2-
Pin 11
Opto 2+
Pin 24
Opto 3-
Pin 12
Opto 3+
Pin 25
Opto 4-
Pin 13
Opto 4+
Table 6: Control I/O pin out
18 HelixNet Partyline User Guide

C
Hot Mic output. This connection is a 1/4-in (0.64 cm) phone jack. It provides an output
signal from the selected headset or panel microphone. The Hot Mic output is always
live. Audio from the mic is routed through the Hot Mic output even if the mic is inactive
(off).
Pin
Function
Tip
Mic
Ring
IFB mute signal
Sleeve
Ground
Table 7: Hot Mic pin out
D
SA [Stage Announce] line out (3-pin male XLR).
Pin
Function
Pin 1
Ground
Pin 2
Hot
Pin 3
Cold
Table 8: SA pin out
E
Program Input (3-pin female XLR).
Pin
Function
Pin 1
Ground
Pin 2
Hot
Pin 3
Cold
Table 9: Program input pin out
F
Line 1 (partyline). (3-pin male and female XLR connectors). Up to 10 beltpacks can be
connected to a line, depending on the cable type and distance from the main station.
See Quick reference: Cable capacity versus distance on page 139.
Pin
Function
Pin 1
Ground
Pin 2
+30V DC and Audio
Pin 3
-30V DC and Audio
Table 10: Line 1 pin ou
19 HelixNet Partyline User Guide

G
Line 2 (partyline). (3-pin male and female XLR connectors). Up to 10 beltpacks can be
connected to a line, depending on the cable type and distance from the main station.
Pin
Function
Pin 1
Ground
Pin 2
+30V DC and Audio
Pin 3
-30V DC and Audio
Table 11: Line 2 pin out
See Quick reference: Cable capacity versus distance on page 139.
H
Optional: Four-wire interface module (Ethercon type RJ45 connectors). For more
information, see Table 16: HMS-4X Main Station rear panel: Interface Modules.
Optional: Two-wire interface module (3-pin female XLR connectors). For more
information, see Table 16: HMS-4X Main Station rear panel: Interface Modules.
Optional: Ethernet interface module. For more information, see Table 16: HMS-4X
Main Station rear panel: Interface Modules.
Optional: Fiber interface module (3-pin female XLR connectors). For more
information, see Table 16: HMS-4X Main Station rear panel: Interface Modules.
I
J
Spare interface module bay. You can fit up to three optional interface modules to the
HelixNet main station. For more information, see Table 16: HMS-4X Main Station rear
panel: Interface Modules.
Table 12: Key to HMS-4X Main Station rear panel diagram
Only connect power supply to earthed supply sockets. Ensure that the power supply
is routed to avoid sharp bends, hot surfaces, pinches and abrasion.
For more safety guidance, see the Safety Instructions at the front of this guide.
Important note:
The HMS-4X Main Station does not have a power switch, button or key. The system powers up when you
connect the power supply. Power up takes 15-20 seconds.
20 HelixNet Partyline User Guide