User Manual

MDR2400 and MDR5800 User Manual
862-01881 Issue 8 Page 31
4.2.5 Unbalanced Payload Data
For a later variant of the Indoor Unit, there is a set of 75 Ohm BNC’s on the front panel.
• Rx implies IN (signal expected to go INTO the interface)
• Tx implies OUT (signal coming OUT of the interface)
4.2.6 Connecting Auxiliary In/Out (Optional)
The auxiliary in/out port is used to:
• Monitor switch-closure events using two isolated inputs.
• Control line connections using normally-open and normally-closed relay outputs.
Connect the port:
1. Assemble an auxiliary in/out cable using a 15 way D-type male connector
according to connector pin assignments shown in Table 7.
2. Connect to the cable Indoor Unit auxiliary in/out connector.
3. Secure the connector using locking screws.
Table 7. Auxiliary In/Out Connector Pin Outs
Indoor unit connector Pin
No
Signal
1 OUTPUT 1 COMMON
2 OUTPUT 1 NORMALLY-OPEN
3 OUTPUT 1 NORMALLY-OPEN
4 OUTPUT 1 NORMALLY-CLOSED
5 OUTPUT 1 NORMALLY-CLOSED
6 OUTPUT 1 COMMON
7 OUTPUT 2 COMMON
8 OUTPUT 2 COMMON
9 OUTPUT 2 NORMALLY-OPEN
10 OUTPUT 2 NORMALLY-OPEN
11 OUTPUT 2 NORMALLY-CLOSED
12 INPUT 1
13 INPUT 1 RETURN
14 INPUT 2
15-pin D-type female
1
8
9
15
15 INPUT 2 RETURN