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201627 REV X
4 RU SSPA Chassis Operations Manual
Table 4-3: Parallel connector (37 socket D connector), Highlighting 1:1 Functions
Pin #
Function / Description
1
Closed on Power Supply Fault Form C relay NC
2
Opened on Power Supply Fault Form C relay NO
20
Power Supply Fault Common
21
1. Standalone mode. Closed on Auxiliary Fault
2. 1:1 Redundancy Mode. Closed on Automatic switchover mode. Form C relay NC
22
1. Standalone Mode. Opened on Auxiliary Fault
2. 1:1 Redundancy Mode. Closed on Manual switchover mode. Form C relay NO
3
Auxiliary Fault\Auto-Manual Common
4
Closed on Mute. Form C Relay NC
5
Opened on Mute. Form C Relay NO
23
Mute Status Common
24
Closed on BUC Fault. Form C Relay NC
25
Opened on BUC Fault. Form C Relay NO
6
BUC Fault Common
7
Closed on High Temperature Fault. Form C Relay NC
8
Opened on High Temperature Fault. Form C Relay NO
26
High Temperature Fault Common
27
1. Standalone mode. Closed on Regulator Low Voltage Fault
2. 1:1 Redundancy Mode. Closed on HPA Standby. Form C relay NC
1. Standalone Mode. Opened on Regulator Low Voltage Fault.
2. 1:1 Redundancy Mode. Closed on HPA Online Mode. Form C relay NO
9
Regulator Low Voltage Fault\Standby-Online Common
10
Closed on DC Current Low Fault. Form C Relay NC
11
Opened on DC Current Low Fault. Form C Relay NO
29
DC Current Low Fault Common
30
Closed on Low Forward RF Fault. Form C Relay NC
31
Opened on Low Forward RF Form C Relay NO
12
Low Forward RF Fault Common
16
Auto/Manual toggle input. 50mS Closure to ground to activate
17
Mute/Unmute toggle input. 50mS Closure to ground to activate
18
Auxiliary Fault & Auxiliary Mute Input (See
Section 2.1.2.10a
). 50 ms minimum response time
35
HPA Standby input. 50mS Closure to ground to activate
36
Local/Remote toggle. 50mS Closure to ground to activate
37
Fault clear. 50mS Closure to ground to activate
19 Ground
34, 33, 32,
15, 14, 13
+5V Pull Up. 5mA Maximum output current
28
4.2.6 Parallel Port special functions
In 1:1 Redundant Mode, each SSPA chassis will change some of its parallel I/O
functions to alternative functions. See
Table 4-3
for details.
Содержание 4 RU Chassis
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