
16
Pin
Signal Name
Description
1
Chassis Ground
Ground
2
Aux Serial Receive
Aux Serial Channel Rx Data (to IDU)
3
Unused
4
Unused
5
Chassis Ground
Ground
6
Unused
7
Unused
8
Relay 2 COM
Relay 2 COM pin
9
Relay 1 NC
Relay 1 NC pin
10
Aux Serial Transmit
Aux Serial Channel Tx Data (from IDU)
11
Chassis Ground
Ground
12
Unused
13
Unused
14
Unused
15
Chassis Ground
Ground
16
Aux Alarm Input 2
Bi-level alarm input 2 (TTL)
17
Relay 1 NO
Relay 1 NO pin
18
Relay 2 NC
Relay 2 NC pin
19
Chassis Ground
Ground
20
Unused
21
Unused
22
Unused
23
Chassis Ground
Ground
24
Aux Alarm Input 1
Bi-level alarm input 1 (TTL)
25
Relay 2 NO
Relay 2 NO pin
26
Relay 1 COM
Relay 1 COM pin
Table 4-2: Overhead/Alarm Interface Connector Pinout
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.
Form-C Relay Outputs
The IDU includes two Form-C relays. All three pins of each of the two relays are brought out to
the Overhead/Alarm interface. The functions of the relays as programmed by default in the
factory are as shown in Table 1-3. Other functions may be made available by request.
Содержание SKYWAY-LM Series
Страница 1: ...1 SKYWAY LM SERIES PTP Microwave Radio System User s Guide APRIL 2010 Rev 1 6 PN 1552601 ...
Страница 21: ...21 Figure 5 2 The backside of the ODU rectangular waveguide version shown ...
Страница 25: ...25 Figure 5 9 Loosened plate Figure 5 10 Rotating the antenna waveguide by 90 degrees ...
Страница 50: ...50 Figure 6 19 System Reboot Screen ...
Страница 57: ...57 Figure 8 3 Serial Interface Menu Structure ...
Страница 66: ...66 Figure 11 2 Frame Structure ...