CTI Products CIB Comparator Interface User Manual
Page 35
CIB Hardware Reference
Comparator Wiring Lists
CTI Products, Inc.
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29
7.5.1
JPS Voter Modifications for Monitoring Voted Out using Channel Select In
The JPS SNV-12 Voters with firmware version 1.08 or lower do not pull the Vote
Out line to ground when a receiver channel is selected externally through the
Select In lines (terminal 11). the Voted Out line goes low only when the SNV-12
votes the Receiver through the standard voting process. Votes are not indicated
due to a force select input.
To get a “VOTE” indication when force-voting (force selecting) a receiver site,
simply connect a standard diode (type 1N914 or similar) to the SNV-12 voter
module as shown in Table 21. This modification will allow the CIB module to
monitor the Voted Out signal when a receiver site is selected externally via the
Select In terminal. Do a modification for each voter module used with a CIB.
SNV-12 Pin
Function
DIODE
11
SELECT
CATHODE
15
VOTED OUT
ANODE
Table 21 - Diode Connection for Force-Vote Monitoring on JPS SNV-12