Raytheon SNV-12 User manual

Installation and Operation Manual
SNV-12
Signal-and-Noise Voter
Designed and Manufactured by:
Raytheon Company
5800 Departure Drive
Raleigh, NC 27616
phone: [phone]
email: [e-mail]
P/N 5951-800200 Revision 8.2
March 2009

SNV-12 Operations Manual
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FEDERAL COMMUNICATIONS COMMISSION
(FCC) COMPLIANCE NOTICE:
RADIO FREQUENCY INTERFERENCE NOTICE
This equipment has been tested and found to comply with the limits for a Class
A digital device, pursuant to Part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference when
the equipment is operated in a commercial environment. This equipment
generates, uses, and can radiate radio frequency energy and, if not installed and
used in accordance with the instruction manual, may cause harmful
interference to radio communications. Operation of this equipment in a
residential area is likely to cause harmful interference in which case users will
be required to correct the interference at their own expense.
CAUTION
Changes or modifications to this equipment not expressly approved by
Raytheon could void the user‟s authority to operate this equipment.
NOTICE
Raytheon reserves the right to make changes to the equipment and
specifications without prior notice.
PROPRIETARY STATEMENT
The information contained in this manual is the property of Raytheon and is
intended for the purchaser‟s use only. It may not be reproduced without the
expressed written consent of Raytheon. © 2009 Raytheon Company.

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Table of Contents
1OVERVIEW..................................................................................................................................................1-1
1.1 SCOPE ......................................................................................................................................................1-1
1.2 DESCRIPTION ...........................................................................................................................................1-1
1.2.1 General............................................................................................................................................1-1
1.2.2 Card Cage and Backplane ..............................................................................................................1-1
1.2.3 Power Supply Module .....................................................................................................................1-1
1.2.4 Console Interface Module...............................................................................................................1-2
1.2.5 Control Processor Module..............................................................................................................1-2
1.2.6 Site Voter Module............................................................................................................................1-2
1.2.7 Compatibility With Previous-Version Modules...............................................................................1-3
1.2.8 Specifications ..................................................................................................................................1-4
2FIELD SETUP GUIDE.................................................................................................................................2-1
2.1 GENERAL .................................................................................................................................................2-1
2.2 BASIC INSTALLATION INSTRUCTIONS.......................................................................................................2-2
2.3 MODULE CONFIGURATION SHEETS..........................................................................................................2-3
3INSTALLATION..........................................................................................................................................3-1
3.1 GENERAL .................................................................................................................................................3-1
3.2 UNPACKING AND INSPECTION..................................................................................................................3-1
3.3 RESHIPMENT OF EQUIPMENT....................................................................................................................3-1
3.4 INSTALLATION OVERVIEW.......................................................................................................................3-2
3.5 MECHANICAL INSTALLATION ..................................................................................................................3-2
3.6 POWER REQUIREMENTS ...........................................................................................................................3-6
3.6.1 AC Voltage......................................................................................................................................3-6
3.6.2 DC Voltage......................................................................................................................................3-7
3.7 FUSE INFORMATION.................................................................................................................................3-8
3.8 GROUNDING CONSIDERATIONS..............................................................................................................3-10
3.9 INSTALLATION CHECKLIST ....................................................................................................................3-11
3.10 AUDIO LINKS .........................................................................................................................................3-13
3.10.1 Microwave Links ...........................................................................................................................3-13
3.10.2 Radio Links ...................................................................................................................................3-13
3.10.3 Wireline Links ...............................................................................................................................3-14
3.10.4 Satellite Links................................................................................................................................3-16
3.10.5 Network Links................................................................................................................................3-16
3.11 EXTERNAL INTERCONNECT INFORMATION.............................................................................................3-18
3.11.1 DC Input Connector......................................................................................................................3-18
3.11.2 Site Voter Module Connections.....................................................................................................3-18
3.11.3 Serial Remote Connector ..............................................................................................................3-21
3.11.4 Console Interface Connections –P2.............................................................................................3-22
3.11.5 Console Interface Connections –TB13.........................................................................................3-23
3.11.6 Expansion Connector....................................................................................................................3-24
3.12 MODULE CONFIGURATION SETTINGS AND ADJUSTMENTS.....................................................................3-27
3.12.1 PSM-1A Power Supply..................................................................................................................3-27
3.12.2 CIM-2A Console Interface Module ...............................................................................................3-28
3.12.3 CPM-3 Control Processor Module ...............................................................................................3-45
3.12.4 System Reset to Factory Defaults..................................................................................................3-45
3.12.5 Real Time Clock (RTC) .................................................................................................................3-46
3.12.6 SVM Site Voter Module.................................................................................................................3-59
3.12.7 Expanded Voter System Alignment................................................................................................3-82

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3.13 I/O DESCRIPTIONS.............................................................................................................................3-84
3.13.1 Audio Inputs ..................................................................................................................................3-84
3.13.2 Audio Outputs................................................................................................................................3-88
3.13.3 Parallel Control Inputs................................................................................................................3-100
3.13.4 Parallel Control Outputs.............................................................................................................3-101
4SNV-12 OPERATION & TECHNICAL DESCRIPTION.........................................................................4-1
4.1 GENERAL .................................................................................................................................................4-1
4.2 MODULAR CHASSIS AND BACKPLANE......................................................................................................4-1
4.2.1 General............................................................................................................................................4-1
4.3 POWER SUPPLY MODULE .........................................................................................................................4-2
4.3.1 Features and Functions...................................................................................................................4-2
4.3.2 Functional Description....................................................................................................................4-2
4.3.3 Power Switch (PSM-1) ....................................................................................................................4-2
4.3.4 AC and DC Indicators (PSM-1) ......................................................................................................4-2
4.3.5 +12V and -12V Indicators (PSM-1)................................................................................................4-3
4.4 CONSOLE INTERFACE MODULE (CIM).....................................................................................................4-3
4.4.1 Features and Functions...................................................................................................................4-3
4.4.2 General............................................................................................................................................4-3
4.4.3 Speaker Switch.................................................................................................................................4-3
4.4.4 Volume Control ...............................................................................................................................4-3
4.4.5 Peak & Norm LEDs.........................................................................................................................4-3
4.4.6 Remote LED ....................................................................................................................................4-3
4.4.7 Fault LED........................................................................................................................................4-3
4.4.8 Console Audio Input & Voted Output Adjustments .........................................................................4-3
4.5 CONTROL PROCESSOR MODULE (CPM)...................................................................................................4-4
4.5.1 Features and Functions...................................................................................................................4-4
4.5.2 General............................................................................................................................................4-4
4.5.3 Hardware Description.....................................................................................................................4-4
4.5.4 Fault LED........................................................................................................................................4-5
4.5.5 Master/Expansion 1/Expansion 2 LEDs..........................................................................................4-5
4.5.6 Link LED .........................................................................................................................................4-5
4.6 SITE VOTER (SVM) MODULE...................................................................................................................4-6
4.6.1 Features and Functions...................................................................................................................4-6
4.6.2 General............................................................................................................................................4-6
4.6.3 Hardware Description.....................................................................................................................4-6
4.6.4 Software Description.......................................................................................................................4-7
4.6.5 Select/Norm/Disable Switch ............................................................................................................4-7
4.6.6 Transmit Select (TX SEL) LED........................................................................................................4-7
4.6.7 RX Input Level Indication LEDs, Test Point and Adjustment Potentiometer ..................................4-8
4.6.8 Voted LED.......................................................................................................................................4-8
4.6.9 Unsquelch (UNSQ) LED .................................................................................................................4-8
4.6.10 Transmit (TX) LED..........................................................................................................................4-8
4.6.11 Fault LED........................................................................................................................................4-8
4.7 REAR PANEL CONNECTORS......................................................................................................................4-9
4.8 VOTER OPERATION ..................................................................................................................................4-9
4.8.1 Unit Power-Up ................................................................................................................................4-9
4.8.2 Voting Controls .............................................................................................................................4-10
4.9 REMOTE CONTROL.................................................................................................................................4-10
4.10 MANUAL TX SELECTION........................................................................................................................4-11
4.11 REMOVAL AND REPLACEMENT OF MODULES.........................................................................................4-11
5FEATURES AND CAPABILITIES.............................................................................................................5-1
5.1 GENERAL .................................................................................................................................................5-1
5.2 HOT INSERTION OF MODULES ..................................................................................................................5-1
5.3 SERIAL PORT............................................................................................................................................5-1
5.4 SERIAL CONTROL VIA TELNET .................................................................................................................5-1

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5.5 SNR VOTING AND NOISE-ONLY (FM MODE)VOTING.............................................................................5-1
5.6 VOTING TRANSITION CRITERIA................................................................................................................5-2
5.7 AUDIO DELAY..........................................................................................................................................5-2
5.7.1 A- Standard Voting With No Audio Delay.......................................................................................5-4
5.7.2 B- RX Audio Delay; No Delay Added To The Onset Of Unsquelch Declaration............................5-4
5.7.3 C- RX Audio Delay; Unsquelch Declaration Also Delayed............................................................5-4
5.8 VOTING LOCK (COR LOCK) ....................................................................................................................5-5
5.9 DATA DETECT &LOCK............................................................................................................................5-5
5.10 COR TYPES ACCOMMODATED ................................................................................................................5-5
5.10.1 Receiver with Pilot Tone .................................................................................................................5-5
5.10.2 Receiver with Hardwired COR Signal ............................................................................................5-6
5.10.3 Unsquelched Receiver.....................................................................................................................5-6
5.10.4 Audio Level COR with a Squelched Receiver..................................................................................5-7
5.11 LINE FAULT (PILOT TONE FAULT/COR FAULT)DETECTION ...................................................................5-8
5.12 GUARD TONE OPERATION........................................................................................................................5-8
5.13 SNV-12 TRANSMIT FEATURES.................................................................................................................5-9
5.14 RECEIVE ONLY SITES.............................................................................................................................5-10
5.15 REPEAT MODE .......................................................................................................................................5-10
5.15.1 Repeat Mode Transmit Hangtime..................................................................................................5-10
5.15.2 Repeat Mode and Automatic Transmit Steering............................................................................5-11
5.15.3 Repeat Mode and Momentary Manual Transmit Steering ............................................................5-11
5.15.4 Repeat Mode and “Latched” Manual Transmit Steering .............................................................5-11
5.16 DEFAULT TRANSMIT SITE SELECTION....................................................................................................5-12
5.17 HOLDOVER TIMER .................................................................................................................................5-13
5.17.1 Holdover Timer With STARS.........................................................................................................5-13
5.17.2 Holdover Timer With Momentary Manual TX Steering................................................................5-14
5.17.3 Holdover Timer With Latched Manual TX Steering......................................................................5-14
5.17.4 Holdover Timer Examples.............................................................................................................5-14
5.18 RECEIVER /TRANSMITTER GROUPS .......................................................................................................5-15
5.18.1 Group Operation and Repeat Mode..............................................................................................5-16
5.18.2 Group Lockout With Primary Site Failure....................................................................................5-16
5.19 CONSOLE TRANSMISSIONS /TRANSMIT STEERING.................................................................................5-16
5.19.1 STARS (Automatic Transmit Steering)..........................................................................................5-16
5.19.2 Automatic TX Steering Related to RX Group Designations..........................................................5-17
5.19.3 Manual Transmit Steering.............................................................................................................5-18
5.19.4 Console / Field Transmit Priority .................................................................................................5-20
5.19.5 Transmit Site Selection Indication ................................................................................................5-21
5.19.6 Vote Indication Hold After Squelch...............................................................................................5-23
5.19.7 Transmit Audio Delay ...................................................................................................................5-23
5.20 KEYING TONE DETECTION AND GENERATION.........................................................................5-24
5.20.1 Simultaneity of Hardwired I/O......................................................................................................5-24
5.20.2 Keying Tone Detection and Repeat Mode Control via EIA...........................................................5-24
5.20.3 Function Tone Guided TX Steering (Multiple Function Tone Detection).....................................5-25
5.20.4 Keying Tone Generation ...............................................................................................................5-26
5.21 DUPLEX AND SIMPLEX MODES ..............................................................................................................5-27
5.22 SYSTEM EXPANSION (MULTIPLE CHASSIS)............................................................................................5-28
5.23 PILOT TONE AGC..................................................................................................................................5-29
5.24 PILOT TONE NOTCH FILTER DISABLE ....................................................................................................5-29
6SNV-12 REMOTE OPERATION................................................................................................................6-1
6.1 GENERAL .................................................................................................................................................6-1
6.2 SERIAL PORT............................................................................................................................................6-1
6.3 REMOTE COMMAND SET..........................................................................................................................6-1
6.3.1 Manual Site Selection......................................................................................................................6-2
6.3.2 Site Enable ......................................................................................................................................6-3
6.3.3 Console Audio Transmission Select ................................................................................................6-3
6.3.4 Momentary TX Selection.................................................................................................................6-4

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6.3.5 Repeat Mode Control ......................................................................................................................6-4
6.3.6 Configuration Information ..............................................................................................................6-5
6.3.7 Site Status........................................................................................................................................6-6
6.3.8 Software Version Number..............................................................................................................6-10
6.3.9 Automatic Status Reporting...........................................................................................................6-10
6.3.10 System Reset ..................................................................................................................................6-11
6.3.11 System Uptime Query ....................................................................................................................6-11
6.3.12 Return or Set Real-Time Clock......................................................................................................6-11
6.3.13 TCP/IP Configuration ...................................................................................................................6-12
6.3.14 Report CPLD Version....................................................................................................................6-12
6.3.15 Return Time Statistics....................................................................................................................6-12
6.3.16 Return Count Statistics..................................................................................................................6-13
6.3.17 Return System DIP Switch Configuration .....................................................................................6-13
6.3.18 Network Password Configuration .................................................................................................6-14
6.3.19 Chassis Locate Function ...............................................................................................................6-15
6.3.20 Remote Control Command Error Reports.....................................................................................6-15
6.4 NETWORK (TELNET)COMMAND LINE INTERFACE .................................................................................6-16
6.5 WEB BROWSER INTERFACE....................................................................................................................6-16
6.5.1 SVM Configuration Details...........................................................................................................6-18
6.5.2 Network Configuration..................................................................................................................6-18
6.5.3 SVM Status ....................................................................................................................................6-20
6.5.4 Event Log.......................................................................................................................................6-21
6.5.5 SNV-12 Statistics (Counts) ............................................................................................................6-22
6.5.6 SVN-12 Statistics (Time)................................................................................................................6-23
7OPTIONS.......................................................................................................................................................7-1
7.1 PTG-10 PILOT TONE GENERATOR ...........................................................................................................7-1
8APPENDIX ....................................................................................................................................................8-1
8.1 SOFTWARE UPGRADES .............................................................................................................................8-1
8.1.1 Upgrade Procedure.........................................................................................................................8-1
8.2 CPM-3 SOFTWARE REVISION HISTORY....................................................................................................8-2
8.2.1 Version 1.0.......................................................................................................................................8-2
8.2.2 Version 1.01.....................................................................................................................................8-2
8.2.3 Version 1.02.....................................................................................................................................8-2
8.2.4 Version 1.03.....................................................................................................................................8-2
8.2.5 Version 1.04.....................................................................................................................................8-3
9INDEX............................................................................................................................................................9-1

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List Of Figures
FIGURE 2-1 QUICK START BLOCK DIAGRAM......................................................................................................2-1
FIGURE 3-1 OUTLINE DIMENSIONS .....................................................................................................................3-4
FIGURE 3-2 CONTROL AND CONNECTOR LOCATIONS .........................................................................................3-5
FIGURE 3-3 SIDE VIEW OF PSM-1A....................................................................................................................3-9
FIGURE 3-4 EXPANSION CABLE,24 SITE SYSTEM.............................................................................................3-25
FIGURE 3-5 EXPANSION CABLE,36 SITE SYSTEM.............................................................................................3-26
FIGURE 3-6 CONSOLE INTERFACE MODULE INTERNAL ADJUSTMENTS LOCATIONS..........................................3-29
FIGURE 3-7 AUDIO ROUTING ............................................................................................................................3-44
FIGURE 3-8 CPM-3 INTERNAL ADJUSTMENTS LOCATIONS..............................................................................3-45
FIGURE 3-9 SVM MODULE INTERNAL ADJUSTMENTS LOCATIONS...................................................................3-59
FIGURE 3-10 ALIGNMENT SETUP ....................................................................................................................3-81
FIGURE 3-11 SVM-2 REMOTE RECEIVER INPUT.............................................................................................3-84
FIGURE 3-12 SVM-1 REMOTE RECEIVER AUDIO INPUT..................................................................................3-85
FIGURE 3-13 CIM-1 CONSOLE TX AUDIO INPUT............................................................................................3-86
FIGURE 3-14 CIM-2 CONSOLE TX AUDIO INPUT............................................................................................3-87
FIGURE 3-15 SVM TX AUDIO OUTPUT ..........................................................................................................3-88
FIGURE 3-16 CIM VOTED AUDIO OUTPUT......................................................................................................3-88
FIGURE 3-17 SVM-2 COR /E&M INPUT........................................................................................................3-89
FIGURE 3-18 SVM-2 PTT /E&M OUTPUT .....................................................................................................3-90
FIGURE 3-19 SVM-2 FOR TYPE ISIGNALING.................................................................................................3-92
FIGURE 3-20 SVM-2 FOR TYPE II SIGNALING.................................................................................................3-93
FIGURE 3-21 SVM-2 FOR TYPE III SIGNALING ...............................................................................................3-94
FIGURE 3-22 SVM-2 FOR TYPE VSIGNALING................................................................................................3-95
FIGURE 3-23 CIM-2 FOR TYPE ISIGNALING...................................................................................................3-96
FIGURE 3-24 CIM-2 FOR TYPE II SIGNALING..................................................................................................3-97
FIGURE 3-25 CIM-2 FOR TYPE III SIGNALING ................................................................................................3-98
FIGURE 3-26 CIM-2 FOR TYPE VSIGNALING .................................................................................................3-99
FIGURE 3-27 SVM-1, CIM-1, CIM-2 CONTROL INPUTS...............................................................................3-100
FIGURE 3-28 SNV-12 CONTROL OUTPUT .....................................................................................................3-101
FIGURE 4-1 FRONT PANEL VIEWS.......................................................................................................................4-2
FIGURE 5-1 RX AUDIO DELAY ...........................................................................................................................5-3
FIGURE 6-1 INFORMATION PAGE.......................................................................................................................6-17
FIGURE 6-2 SVM CONFIGURATION DETAILS PAGE ..........................................................................................6-18
FIGURE 6-3 NETWORK CONFIGURATION PAGE .................................................................................................6-19
FIGURE 6-4 SVM STATUS PAGE .......................................................................................................................6-20
FIGURE 6-5 EVENT LOG PAGE ..........................................................................................................................6-21
FIGURE 6-6 VOTER STATISTICS (COUNTS)SCREEN ..........................................................................................6-22
FIGURE 6-7 VOTER STATISTICS (TIME)SCREEN ...............................................................................................6-23

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List of Tables
TABLE 1-1: SPECIFICATIONS ...............................................................................................................................1-4
TABLE 1-2 EQUIPMENT AND ACCESSORIES SUPPLIED........................................................................................1-5
TABLE 1-3 OPTIONAL EQUIPMENT -NOT SUPPLIED...........................................................................................1-6
TABLE 3-1 BASIC INSTALLATION CHECKLIST..................................................................................................3-11
TABLE 3-2 TB1-TB12 SITE VOTER MODULE CONNECTIONS WITH SVM-2....................................................3-19
TABLE 3-3 TB1-TB12 SITE VOTER MODULE CONNECTIONS WITH SVM-1 ...................................................3-20
TABLE 3-4 P1 –SERIAL REMOTE CONNECTIONS.............................................................................................3-21
TABLE 3-5 P2 -CONSOLE INTERFACE CONNECTIONS ......................................................................................3-22
TABLE 3-6 TB13 CONSOLE INTERFACE TERMINAL BLOCK CONNECTIONS.....................................................3-23
TABLE 3-7 P3 –EXPANSION CONNECTOR........................................................................................................3-24
TABLE 3-8 PSM-1A CHARGE SWITCH.............................................................................................................3-27
TABLE 3-9 CIM SWITCH ASSIGNMENTS ..........................................................................................................3-28
TABLE 3-10 CIM JUMPER SETTINGS..................................................................................................................3-30
TABLE 3-11 RECOMMENDED DELAY SETTINGS CONSOLE TX AUDIO ...............................................................3-32
TABLE 3-12 CONSOLE TX AUDIO DELAY SETTING ...........................................................................................3-32
TABLE 3-13 TRANSMITTER CONTROL;KEY TONE FREQUENCY &TYPE............................................................3-33
TABLE 3-14 EIA FUNCTION TONE OUTPUT SELECTION.....................................................................................3-34
TABLE 3-15 KEY TONE LEVEL...........................................................................................................................3-34
TABLE 3-16 EIA KEY TONE DETECTION,IN CONSOLE TX AUDIO.....................................................................3-35
TABLE 3-17 SITE UNSQUELCH TIME LIMITER ENABLE ......................................................................................3-36
TABLE 3-18 CIM HIGH-PASS FILTER.................................................................................................................3-36
TABLE 3-19 TX SOURCE PRIORITY....................................................................................................................3-37
TABLE 3-20 SIMPLEX MODE VOTING HOLD OFF AFTER CONSOLE TRANSMISSION...........................................3-37
TABLE 3-21 TRANSMIT HANGTIME....................................................................................................................3-38
TABLE 3-22 SYSTEM PTT /COR OUTPUT CONFIGURATION..............................................................................3-39
TABLE 3-23 CONSOLE TX HANGTIME ...............................................................................................................3-39
TABLE 3-24 MIX REPEAT AUDIO WITH CONSOLE TX AUDIO............................................................................3-40
TABLE 3-25 OUTPUT KEYING TONE AMPLITUDES.............................................................................................3-40
TABLE 3-26 PTT INPUT POLARITY ....................................................................................................................3-41
TABLE 3-27 TB13-17 FUNCTION .......................................................................................................................3-41
TABLE 3-28 TB13-12 FUNCTION .......................................................................................................................3-42
TABLE 3-29 CPM SWITCH ASSIGNMENTS .........................................................................................................3-46
TABLE 3-30 SERIAL PORT BAUD RATE SETTINGS..............................................................................................3-48
TABLE 3-31 SERIAL PORT CONTROL..................................................................................................................3-48
TABLE 3-32 EIA CONTROL OF REPEAT MODE...................................................................................................3-48
TABLE 3-33 PILOT TONE EOT NOISE CANCELLATION..........................................................................................3-49
TABLE 3-34 MANUFACTURING TEST SELECTION...............................................................................................3-49
TABLE 3-35 DEFAULT TX SITE SELECTION .......................................................................................................3-50
TABLE 3-36 VOTING CRITERIA .........................................................................................................................3-51
TABLE 3-37 SVM FAULT REPORTING................................................................................................................3-51
TABLE 3-38 LINE FAULT TIMER DELAY SELECTION..........................................................................................3-52
TABLE 3-39 STARS SELECTION........................................................................................................................3-52
TABLE 3-40 NORMAL/UPDATE SELECTION........................................................................................................3-53
TABLE 3-41 HOLDOVER TIME SELECTION .........................................................................................................3-53
TABLE 3-42 VOTING LOCK ON ACTIVE COR.....................................................................................................3-54
TABLE 3-43 VOTING LOCK ON DATA SELECTION ..............................................................................................3-54
TABLE 3-44 DUPLEX/SIMPLEX OPERATION .......................................................................................................3-55
TABLE 3-45 GROUP LOCKOUT SELECTION.........................................................................................................3-55
TABLE 3-46 REPEAT MODE ENABLE..................................................................................................................3-56
TABLE 3-47 VOTE INDICATION HOLD AFTER SQUELCH.....................................................................................3-56
TABLE 3-48 SW4 AS VOTING TRANSITION TIMER ............................................................................................3-57
TABLE 3-49 SW4 AS COR LOCK ONSET DELAY TIMER....................................................................................3-58
TABLE 3-50 SITE VOTER MODULE SWITCH ASSIGNMENTS................................................................................3-60

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TABLE 3-51 SVM JUMPER SETTINGS ................................................................................................................3-61
TABLE 3-52 AUDIO DELAY SETTING .................................................................................................................3-63
TABLE 3-53 PILOT TONE/GUARD TONE SELECTION ..........................................................................................3-63
TABLE 3-54 COR TYPE SELECTION...................................................................................................................3-64
TABLE 3-55 TB1-TB12, PIN 16 CONFIGURATION..............................................................................................3-65
TABLE 3-56 SITE DESIGNATION.........................................................................................................................3-65
TABLE 3-57 COR THRESHOLD SELECTION........................................................................................................3-66
TABLE 3-58 COR POLARITY .............................................................................................................................3-67
TABLE 3-59 SVM HIGH-PASS FILTER ...............................................................................................................3-67
TABLE 3-60 RX GROUP SELECTION ..................................................................................................................3-68
TABLE 3-61 FUNCTION TONE GUIDED TX STEERING SELECTION......................................................................3-69
TABLE 3-62 PRIMARY SITE................................................................................................................................3-69
TABLE 3-63 SW3-5 VOTING MODE...................................................................................................................3-70
TABLE 3-64 SIMPLEX REPEAT WHEN VOTED....................................................................................................3-70
TABLE 3-65 LINE EQUALIZATION......................................................................................................................3-72
TABLE 3-66 PILOT TONE AGC ..........................................................................................................................3-73
TABLE 3-67 AGC LINK EQUALIZATION ............................................................................................................3-75
TABLE 3-68 PILOT TONE NOTCH FILTER ...........................................................................................................3-76
TABLE 3-69 PIN 19 CONFIGURATION.................................................................................................................3-76
TABLE 3-70 COR DELAYED WITH RX AUDIO....................................................................................................3-77
TABLE 3-71 PILOT TONE SENSITIVITY REDUCTION ...........................................................................................3-77
TABLE 3-72 RX OUTPUT AUDIO DELAY ..............................................................................................................3-78
TABLE 3-73 SPARE SWITCH .................................................................................................................................3-79
TABLE 3-74 E&MLEAD CHART ......................................................................................................................3-91
TABLE 5-1 FUNCTION TONE GUIDED TX STEERING SELECTION......................................................................5-25
TABLE 6-1 STATUS BYTE DETAILS....................................................................................................................6-8
TABLE 7-1 PTG-10 SPECIFICATIONS.................................................................................................................7-2

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Glossary
CIM
Console Interface Module
The SNV-12 module that interfaces the voter to a console.
COR
Carrier Operated Relay
A signal from a receiver that gives a positive indication that a
carrier or signal is being received and that the receiver is
unsquelched. It has the same function as Carrier Operated Squelch
(COS).
COR Lock
A voting mode in which, once a site is voted, it stays voted until
all sites become squelched (the voting sequence ends), regardless
of changes in relative signal qualities. Also called Voting Lock.
COS
Carrier Operated Squelch
See COR.
CPM
Control Processor Module
The SNV-12 module that controls all aspects of system operation.
Default TX
Site
When the voter is first turned on and before any TX Steering is
applied (or after the expiration of the Holdover Timer following
the application of TX steering), all console and Repeat Mode
transmissions are sent to the Default TX Site. This can either be
set to the Home Site or set to Multicast.
Dipswitch
Dual In-Line Package
Switch
A multi-unit switch that fits into a standard DIP integrated circuit
footprint. Usually contains eight or ten individual switches.
DSP
Digital Signal Processing
EIA Keying
Sequence
Electronic Industries
Association
The keying tone sequence specified by the EIA is supported by
the SNV-12.
Guard Tone
A tone sent continuously from a receiver to indicate a good link
between the receiver and the voting system. Absence of guard
tone at any time indicates a line fault. Compare with Pilot Tone.
Hangtime
A system with hangtime will remain in the transmit mode for the
duration of the set hangtime beyond the time indicated by any
keying inputs. The hangtime prevents momentary transmitter
unkeying during brief pauses in the transmission.
Holdover
Timer
Determines how long transmit-steered console transmissions and
Repeat Mode voted audio retransmissions will be sent to the
steered site, rather than to the Default TX Site.
Home Site
One of the Default TX Site Selections. The Home Site is the
lowest-numbered TX-eligible SVM. A general coverage
transmitter is usually installed at the Home Site.
Multicast
One of the Default TX Site Selections. When the unit is set to
Multicast, all TX-eligible sites are keyed by console or Repeat
Mode transmission (some restrictions apply).
PCB
Printed Circuit Board
Pilot Tone
A tone sent from a remote receiver site to indicate a squelched
receiver condition. The pilot tone is notched out of the RX audio.
Also called “line proving tones” or “idle tone”. Compare with
Guard Tone.
Primary Site
When several receive sites share a single transmitter, the site
associated with the transmitter is the Primary Site. The other sites
in the group are Auxiliary Sites. See also RX Groups.
Repeat Mode
Voted audio is retransmitted through all sites or through all sites
in an RX Group. Also called Voted Site Talk-through.