GAI-Tronics SP2 User manual

Pub. 42004-783L2C
GAI-TRONICS®CORPORATION
A H U B B E L L C O M P A N Y
SP2 Remote Subset/Speaker
Amplifier Station
TA B L E O F CO N T E N T S
GAI-Tronics Corporation 400 E. Wyomissing Ave. Mohnton, PA 19540 USA
610-777-1374 800-492-1212 Fax: [phone]
VISIT WWW.GAI-TRONICS.COM FOR PRODUCT LITERATURE AND MANUALS
Confidentiality Notice.....................................................................................................................1
General Information.......................................................................................................................1
Product Overview ...................................................................................................................................1
Features....................................................................................................................................................2
Options.....................................................................................................................................................2
Subsets......................................................................................................................................................3
Installation ......................................................................................................................................3
Important Safety Instructions................................................................................................................3
Mounting the Enclosure .........................................................................................................................4
Cable Entries...........................................................................................................................................4
Opening the Station ................................................................................................................................5
Field Wiring and Configuration............................................................................................................5
Station Ground......................................................................................................................................5
Termination PCBA Connections ..........................................................................................................6
Direct Speaker Connection and Jumper Settings..............................................................................6
70 V / 100 V Termination Board Option—Speaker Connections with Monitoring .........................8
RTU Inputs........................................................................................................................................ 9
RTU Output .................................................................................................................................... 10
Power ..............................................................................................................................................11
Main PCBA......................................................................................................................................... 11
600-Ohm Audio I/O with Control...................................................................................................11
Ethernet Termination ......................................................................................................................12
Settings and Adjustments..............................................................................................................13
Opening the Station ..............................................................................................................................13
Main PCBA Configuration ..................................................................................................................13
Write Protect (EEPROM) Jumper.......................................................................................................13
WDOG Enable (Watchdog) Jumper ...................................................................................................13
Boot Enable Jumper............................................................................................................................13
Reset Switch........................................................................................................................................ 14
Speaker and 600-ohm Audio Output Volume..................................................................................... 14
Receiver Volume ................................................................................................................................ 15
Group and Station Number Selector Switches.................................................................................... 15
Main PCBA Indicators.........................................................................................................................15
Power LED.......................................................................................................................................... 15
Heartbeat LED ....................................................................................................................................15

Table of Contents Pub. 42004-783L2C
GAI-Tronics Corporation 400 E. Wyomissing Ave. Mohnton, PA 19540 USA
610-777-1374 800-492-1212 Fax: [phone]
VISIT WWW.GAI-TRONICS.COM FOR PRODUCT LITERATURE AND MANUALS
Ethernet Connection LEDs ................................................................................................................. 15
Five Configurable LEDs.....................................................................................................................16
Attaching the Front Cover...................................................................................................................16
Programming ................................................................................................................................16
Remote Subset Operation..............................................................................................................16
Standard Handset Paging.....................................................................................................................16
Party Line Communication..................................................................................................................16
Maintenance..................................................................................................................................17
Troubleshooting ....................................................................................................................................17
Service....................................................................................................................................................18
Replacement Parts ................................................................................................................................18
Specifications ................................................................................................................................18
Approvals.......................................................................................................................................20

Pub. 42004-783L2C
GAI-TRONICS® CORPORATION
A HUBBELL COMPANY
SP2 Remote Subset/Speaker
Amplifier Station
GAI-Tronics Corporation 400 E. Wyomissing Ave. Mohnton, PA 19540 USA
610-777-1374  800-492-1212  Fax: [phone]
VISIT WWW.GAI-TRONICS.COM FOR PRODUCT LITERATURE AND MANUALS
Confidentiality Notice
This manual is provided solely as an installation, operation, and maintenance guide and contains sensitive
business and technical information that is confidential and proprietary to GAI-Tronics. GAI-Tronics
retains all intellectual property and other rights in or to the information contained herein, and such
information may only be used in connection with the operation of your GAI-Tronics product or system.
This manual may not be disclosed in any form, in whole or in part, directly or indirectly, to any third
party.
This product contains copyrighted computer programs stored in semiconductor memory. These programs
are copyrighted by GAI-Tronics Corporation and may not be reproduced in any form without express
written permission from GAI-Tronics.
General Information
Product Overview
The GAI-Tronics SP2 station is a
modular industrial multicast VoIP
(Voice over Internet Protocol)
communication system. The standard
Remote SP2 configuration is an
indoor handset/speaker amplifier
station using ac power with RTU
control. The SP2 Remote
Handset/Speaker Amplifier Station is
designed to be used in conjunction
with a remote subset. They are
constructed of cold rolled steel with a
gray or safety orange powder coat
finish. A number of options are
available to add to or modify station
capabilities (see the Features and
Options below for more details.
SP2 stations connect to an Ethernet network so the loss of a single station will not adversely affect the
system as a whole. The stations require a 100 Mbps link to a switch or router using Category 5 or better
Ethernet cable. To ensure the quality of SP2 audio, it is recommended that SP2 network traffic be
isolated from other devices and that network switches and routers be properly configured for IGMP
(Internet Group Management Protocol) snooping and multicast filtering. Maximum cable runs between
fiber SP2 stations and network switches are limited to 100 meters to comply with Ethernet standards.
Figure 1. SP2 Remote Station Front Panel

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Features
flexible and highly configurable SMART technology featuring ALS (ambient level sensing), real time
self-diagnostics, and available remote monitoring
real-time operation providing instantaneous page and party line communication
no SIP server or conference bridge requirement
one-way live paging and alarm annunciation over system speakers
distributed amplifier topology—loss of an individual amplifier will not adversely affect the system as
a whole
mutual provisioning mode allows easy system deployment
high efficiency (>80%) Class D paging amplifier provides up to 30 watts of speaker output at 8 ohms
five configurable multicast channels for full-duplex conference communication with party line
selector switch
eight configurable multicast channels for receiving page announcements
one isolated output for beacon activation
two isolated inputs (one isolated input with optional 70V/100V termination PCBA)
600-ohm audio I/O with control
configurable priority scheme allows urgent/emergency pages to override less important pages
configuration stored in non-volatile memory
field adjustable volume control for handset earpiece, headset earpiece, and speaker amplifier
configurable local and nearby speaker mutual muting to prevent acoustic feedback of live pages
configurable pre-announcement tone
off-hook and page switch timeout functionality
configurable virtual zoning ability
USB interface for field or bench configuration
universal ac power supply
durable, high visibility, safety orange powder coat finish.
Options
All SP2 Station options are factory installed.
70/100V constant voltage termination board with 24-watt monitored output
24 V dc power supply
speaker amplifier only (no remote station)
conformal coating for PCBA
gray powder-coat finish

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Subsets
For proper operation, the SP2 Remote Handset/Speaker Amplifier Station must be installed with a remote
subset configuration from the following list:
single or multi-party desktop subset
single or multi-party desk-edge subset
single or multi-party flush-mount subset
The SP2 Remote Subset must be mounted within 10 feet of the subset due to the subset cable limitations.
In addition, the amplifier enclosure must be mounted at an indoor location—the amplifier enclosure is not
designed for outdoor use.
Installation
Important Safety Instructions
Read, follow, and retain instructions—All safety and operating instructions should be read and
followed before operating the unit. Retain instructions for future reference.
Heed warnings—Adhere to all warnings on the unit and in the operating instructions.
Attachments—Attachments not recommended by the product manufacturer should not be used, as
they may cause hazards.
Servicing—Do not attempt to service this unit by yourself. Opening or removing covers may expose
you to dangerous voltage or other hazards. Refer all servicing to qualified service personnel.
ATTENTION
—Install equipment without modification and according to all applicable local,
national and international electrical codes. North America - Consult the
National Electrical Code (NFPA 70), Canadian Standards Association (CSA
22.1), and local codes for specific requirements regarding your installation.
Class 2 circuit wiring must be performed in accordance with NEC 725.55.
WARNING
—In 24 V dc systems: Under NO condition should this equipment be operated
from a battery charger without the batteries connected.
In 24 V dc systems, most chargers have an unloaded output of 35 to 45 volts that can quickly damage the
equipment designed for nominal 24 volts. The maximum battery voltage should never exceed the
maximum specified input voltage.
WARNING
—Do not disconnect equipment while energized.
Insure proper grounding to protective earthing.
These enclosures must be installed by trained, qualified and competent personnel. Installation must
comply with state and national regulations, as well as safety practices for this type of equipment. The
mounting location must be flat and provide proper clearance, rigidity and strength to support the
enclosure and all contained devices.

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Mounting the Enclosure
Mount the enclosure using the four 0.312-inch
(8 mm) diameter holes located on the
mounting flanges with ¼-inch (M6) hardware.
The standard SP2 Remote station is not
supplied with conduit or cable openings.
Cable Entries
Remove the front panel and drill or punch
entry openings in the rear section of the
enclosure. The station is suitable for top
and/or bottom entry (see Figure 2); however,
bottom entry is recommended to prevent
moisture from dripping onto the termination
board. There must be a minimum of ½ inch
(13 mm) of material between entry holes.
Figure 2. Suggested Wire Entry Locations

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Opening the Station
Complete the following steps to open the station:
1. Remove the four screws from the front panel and turn it to the left to expose the interior surfaces.
2. Keep the wiring and ribbon cables connected.
3. Mount the front panel to the back box’s left-side mounting holes using two of the screws just
removed.
Figure 3. SP2 Standard Remote Station—Interior View
Field Wiring and Configuration
The SP2 Standard Remote Station provides terminal blocks on the Termination PCBA located in the rear
of the enclosure for field wiring the power, speaker, and RTU connections. The Main PCBA, mounted to
the back of the front panel, provides the 600-ohm audio connection. The fiber termination board is
mounted on top of the Main PCBA and provides fiber optic termination for the Ethernet SFP Transceiver.
NOTE: Consult the National Electrical Code (NFPA 70), Canadian Standards Association (CSA 22.1),
and local codes for the specific requirements regarding your installation. Install all equipment
without modification and according to the local and national codes. Class 2 circuit wiring must
be performed in accordance with NEC 725.55.
Station Ground
The station enclosure must be connected to earth ground.
1. Install a #6 ring lug on the ground conductor.
2. Secure it to the ground terminal located in the lower left corner at the back of the rear enclosure (see
Figure 3).

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Termination PCBA Connections
Install all connections as indicated in the following sections:
Figure 4. SP2 Standard Termination PCBA
(Optional 70V/100V Termination PCBA Similar)
Direct Speaker Connection and Jumper Settings
Terminal block TB1 provides termination for the station’s 8 or 16-ohm remote speaker(s).
1. Pull the speaker cable(s) into the enclosure.
2. Connect spade lugs to the wires.
3. Install the speaker wires to terminal block TB1 in accordance with the table below.
4. Torque the terminal block screws to 8–10 in·lb (0.90–1.13 N·m).
5. Configure the speaker jumpers; P2 and P3, for the appropriate impedance for use with 8-ohm or 16-
ohm speakers (see Figure 4 and Figure 5).
A redundant set of terminals is provided for a second speaker branch that can be connected in series or
parallel with the primary speaker.

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Table 1. Direct Speaker Connections—TB1
Pin Label Description
TB1-1 + Primary Parallel/SPEAKER A Series—Output
TB1-2 ⏚ Earth Reference
TB1-3 − Primary Parallel/SPEAKER A Series—Output
TB1-4 + Secondary Parallel/SPEAKER B Series—Output
TB1-5 ⏚ Earth Reference
TB1-6 − Secondary Parallel/SPEAKER B Series—Output
Figure 5. 8/16-ohhm Speaker Impedance Configuration
and AC/DC Termination at TB3

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70 V / 100 V Termination Board Option—
Speaker Connections with Monitoring
The optional 70V/100V Speaker Line
Monitoring PCBA replaces the standard
termination board and provides for connection
of 70-volt and/or 100-volt speakers to the SP2
Station. Terminal block TB1 provides
termination for the station’s speaker loop(s).
All speakers must be wired in parallel. One
speaker loop can be monitored by terminating
the return cable to the LINE SPRVN terminals on
TB2 (see Figure 4, Figure 6, and Table 2).
1. Pull the 70 volt and/or 100 volt speaker
cable(s) into the enclosure.
2. Connect spade lugs to the wires.
3. Connect 100-volt speakers to the 100V and
COM terminals on TB1. Connect 70-volt
speakers between the 70V and COM
terminals onTB1.
Two sets of terminals exist for the 70 V and
100 V speaker loops providing termination
for additional speaker loops.
NOTE: An SP2 station can only monitor
one speaker loop.
4. For speaker line supervision, connect the
speaker return wires to the LINE SPRVN +
and – terminals at TB2 (see Table 4).
5. Torque the terminal block screws to 8–10
in·lb (0.90–1.13 N·m).
NOTE: The combined wattage (tap settings) for
all speakers must never exceed the
amplifier power rating (24 W).
Table 2. 70 V/100 V Speaker Connections—TB1
Pin Label Description
TB1-1 100V 100 V Parallel Speakers—Output
TB1-2 COM Earth Reference
TB1-3 70V 70 V Parallel Speakers—Output
TB1-4 100V 100 V Parallel Speakers—Output
TB1-5 COM Earth Reference
TB1-6 70V 70 V Parallel Speakers—Output
Figure 6. 70 V/100 V Termination Board Wiring