Star Microwave SM Cirius LM, User Manual

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Cirius LM User Manual 2016 Page 16
1.3.3. Overhead/Alarm Interface
The signals associated with auxiliary serial channel, relays and alarms are
provided over a DB-15 interface with connector pinouts and signal assignments as
defined in Figure 9 and Table 8 below.
Figure 9 Pinout for High-density DB-15 Connector (as seen looking at front panel)
Pin Signal Name Description
1 Alarm Output 1 Bi-level alarm output 1 (TTL)
2 Aux Serial Receive Aux Serial Channel Rx Data (to IDU)
3 Aux Serial Transmit Aux Serial Channel Tx Data (from IDU)
4 Alarm Output 2 Bi-level alarm output 2 (TTL)
5 Chassis Ground Ground
6 Relay 1 NO Relay 1 NO pin
7 Relay 1 NC Relay 1 NC pin
8 Relay 2 COM Relay 2 COM pin
9 Aux Alarm Input 1 Bi-level alarm input 1 (TTL)
10 Aux Alarm Input 3 Bi-level alarm input 3 (TTL)
11 Relay 1 COM Relay 1 COM pin
12 Relay 2 NO Relay 2 NO pin
13 Relay 2 NC Relay 2 NC pin
14 Aux Alarm Input 2 Bi-level alarm input 2 (TTL)
15 Aux Alarm Input 4 Bi-level alarm input 4 (TTL)
Table 8 Overhead/Alarm Interface Connector Pinout
1.3.3.1. Auxiliary Serial Channel
The Overhead/Alarm interface includes an auxiliary serial channel. This serial
channel, usually configured as 64 Kbps, is transported over the air between IDUs.
(The transport rate of this serial channel can be configured to different values as
part of the IDU Configuration set. Contact factory for other configuration sets.)