Operating instructions

DMD20/DMD20 LBST Universal Satellite Modem Rear Panel Interfaces
TM103 – Rev. 2.8 5-21
5.10.3 DVB/M2P IN (J3)
DVB or M2P IN Port (J3) is supported on the DB-25 female connector. It complies with RS-422
Electrical Specifications. Refer to Table 5-12a for DVB and 5-12 b for M2P pinouts for this
connector.
Table 5-12a. J3 − DVB In - 25-Pin Female
Pin Number Signal Name Direction
1 CLK+ Input
14 CLK- Input
2 SYSTEM GND Input
15 SYSTEM GND Input
3 D7+ Input
16 D7- Input
4 D6+ Input
17 D6- Input
5 D5+ Input
18 D5- Input
6 D4+ Input
19 D4- Input
7 D3+ Input
20 D3- Input
8 D2+ Input
21 D2- Input
9 D1+ Input
22 D1- Input
10 D0+ Input
23 D0- Input
11 DVALID+ Input
24 DVALID- Input
12 PSYNC+ Input
25 PSYNC- Input
13 Cable Shield ---