Operating instructions

Rear Panel Interfaces DMD50 Universal Satellite Modem
5-6 TM118 – Rev. 1.1
When operating the remote port as RS232 using a cable pinned 1 for 1
may cause communication failures due to miss routing of standard
RS232 com port signals.
When operating the remote port as RS232, the cable used should only
have pins 2, 3 and 5 connected.
5.3.12 ETHERNET (J21)
The ETHERNET Port (J21) can be used for the Monitor & Control (M&C) Functions of the unit.
The physical interface is a standard female RJ-45 Connector.
5.4 G.703 IDR/IBS Interface (Optional)
The DMD50 supports two versions of the G703 IDR/IBS interface.
Interface options are G703 T1/E1/T2/E2 or G703 T1/E1/T2/E2/E3/T3 and STS1.
5.4.1 ESC ALARM (J1)
The ESC (Engineering Service Circuits) Alarms Port is a 25-Pin Female “D” Connector. Refer to
Table 5-6 for pinouts.
Table 5-6. ESC ALARM Port 25-Pin Female “D” Connector (J1)
Pin No. Signal Name Signal Direction
1 Ground GND ---
2 Backward Alarm Out - 1NO ESCBWO 1NO N/A
3 No Connection NC ---
4 Backward Alarm Out - 2 NO ESCBWO 2NO N/A
5 No Connection NC ---
6 Backward Alarm Out - 3 NO ESCBWO 3NO N/A
7 Ground GND ---
8 Backward Alarm Out - 4 NO ESCBWO 4NO N/A
9 No Connection NC ---
10 Backward Alarm In - 2 ESCBWI 2 Input
11 Backward Alarm In - 4 ESCBWI 4 Input
12 No Connection NC ---
13 No Connection NC ---
14 Backward Alarm Out - 1 C ESCBWO 1C N/A