Raytheon SNV-12, Инструкция по установке и эксплуатации

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SNV-12 Operations Manual
3-19
Table 3-2 TB1-TB12 Site Voter Module Connections with SVM-2
PIN Signal Description
1 Site Audio In A Balanced or unbalanced audio input from the site receiver. (See note 1
below)
2 Site Audio In B Other half of balanced audio input pair from the site receiver.
3 Ground Ground connection.
4 TX Audio Out A Balanced audio output to the site transmitter. (See note 1 below)
5 TX Audio Out B Balanced audio output to the site transmitter.
6 Line Audio Out This module‟s throughput audio for monitoring (600 ohm, single-ended).
7 Ground Ground connection.
8 TX Sel In Low to select SVM for transmission of console audio.
Site remains selected until input goes back high. (Compare to pin 14)
9 TX Sel Out Low when this site selected for console TX. (See note 2 below)
10 E&M Return E&M Relay normally-open contact (see pin 18). (See note 3 below)
11 Select In Low to select (force-vote) this site.
12 Disable In Low to disable this site (remove from voting).
13 COR In Hardwired COR Input from receiver. Can be configured as E&M input.
14 MOM TX Sel In Momentary low to select SVM for transmit.
Reverts to default site when holdover timer expires. (Compare to pin 8).
15 Voted Out Low when this site is voted
(Or when selected by front panel SELECT switch or by pin 11).
16 Unsquelch Out
-OR-
TX SEL OUT
Configurable output. Normally indicates active COR (Unsquelched)
when low. When SVM COR type is pilot tone or hardwired COR, the
function of this output determined by SVM SW2-5. When OFF, output
goes low when positive COR detected. When ON, output goes low when
this site is selected for Console TX. .
17 Fault Out Low while fault detected on this site.
18 Site PTT Out
E&M relay out
Internally configurable; E&M relay common contact or active low PTT
output to associated transmitter.
19 TX Inhibit
-OR-
UNSQ Inhibit
Configurable input. Active High or Low depending on SVM JP5.
With SVM switch SW5-3 Off this is a TX Inhibit Input.
When active, disables SVM transmit output (with 700 msec hangtime).
When SVM SW5-3 is On, this input, when active, prevents the SVM from
becoming unsquelched (no hangtime with this feature).
20 Ground Ground connection.
Note 1: For unbalanced TX audio, ground “B” pin of audio pair; connect unbalanced audio to “A” pin. RX
audio has jumper to set unbalanced or balanced configuration.
Note 2 : Pin 9 TX Sel Out not available on some earlier versions. If JP6 is not on the module, there is no TX
SEL Out on pin 9, but pin 16 can still be configured as a TX SEL Out.
Note 3 : E&M return not available on some earlier-version SVM-2s. Relay common (pin 18) available on these
versions and is shorted to ground internally when site PTT is active. Use jumper JP6 to select E&M return. If
there is no JP6 on the module, there is no E&M Return.