Teledyne 6 RU Chassis, Operation Manual

Page: 19 / 172

6 RU SSPA Chassis Operations Manual 202058 REV AA 19
2.1.2.7 Parallel I/O Port (J7) [DB37(F)]
A DB37 female type connector, the Parallel I/O Port contains a series of contact
closures for monitoring HPA faults as well as opto-isolated inputs for controlling some
HPA functions. Inputs react on the closure to ground. The minimal closure time is 50
mS. See
Table 2-3
for a description of the pin outs for this connector.
Table 2-3: Parallel Connector (37 socket D connector)
Pin # Function / Description
1 Closed on Power Supply Fault Form C relay NC
2 Open 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. Open on Auxiliary Fault;
2. 1:1 Redundancy Mode. Closed on Manual switchover mode. Form C relay NO
3 Auxiliary Fault\Auto-Manual Common
4 Open on Mute. Form C Relay NC
5 Closed on Mute. Form C Relay NO
23 Mute Status Common
24 Closed on BUC Fault. Form C Relay NC
25 Open on BUC Fault. Form C Relay NO
6 BUC Fault Common
7 Closed on High Temperature Fault. Form C Relay NC
8 Open 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
28
1. Standalone Mode. Open 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 Open 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 Open on Low Forward RF Form C Relay NO
12 Low Forward RF Fault Common
16 Auto/Manual toggle input. 50mS Closure to isolated ground to activate
17 Mute/Unmute toggle input. 50mS Closure to isolated ground to activate
18 Auxiliary Fault & Auxiliary Mute Input (See
Section 2.1.2.7.1
). 50 ms min.
35 HPA Standby input. 50mS Closure to isolated ground to activate
36 Local/Remote toggle. 50mS Closure to isolated ground to activate
37 Fault clear. 50mS Closure to isolated ground to activate
19 Isolated Signal Ground
15 +5V Isolated Power 20 mA
13, 32 +28V Auxiliary Power 1A
14, 33 Chassis Ground