Operating instructions

Rear Panel Interfaces DMD50 Universal Satellite Modem
5-4 TM118 – Rev. 1.1
5.3.8 ASYNC (J17)
The Asynchronous Data Interface Port is a 9-Pin Female “D” Connector. Refer to Table 5-3 for
pinouts.
Table 5-3. ASYNC Port 9-Pin Female “D” Connector (J17)
Pin No. Signal Name Signal Direction
1 Receive Data B (RS-485) RXD_B Output
2 Receive Data A (RS-485/-232) RXD_A Output
3 Transmit Data A (RS-485/-232) TXD_A Input
4 Transmit Data B (RS-485) TXD_B Input
5 Ground GND ---
6 No Connection --- ---
7 No Connection --- ---
8 No Connection --- ---
9 No Connection --- ---
5.3.9 J18
Radyne factory use only.
5.3.10 EIA-530 (J19)
The EIA-530 Port is an RS-422/V.35/RS-232 Connection. It is a 25-Pin Female “D” Connector.
Refer to Table 5-4 for pinouts.
Table 5-4. EIA-530 Port (RS-422/V.35/RS-232) 25-Pin Female “D” Connector (J19)
Pin No. Signal Name Signal Direction
1 Shield --- ---
2 Send Data A (-) SD-A Input
3 Receive Data A (-) RD-A Output
4 Request To Send A (-) RS-A Input
5 Clear To Send A (-) CS-A Output
6 Data Mode A (-) DM-A Output
7 Signal Ground SGND ---
8 Receiver Ready A (-) RR-A Output
9 Receive Timing B (+) RT-B Output
10 Receiver Ready B (+) RR-B Output
11 Terminal Timing B (+) TT-B Input