Comtech EF Data DMD2401/DMD2401L - Manual (Page 159)

Electrical Interfaces DMD2401/DMD2401L/DMD2401 IBS/IDR Satellite Modem
5-20 TM065 – Rev. 3.3
5.6.15 G.703 BAL (J16)
The G.703 Balanced Port (J10) are the G.703 balanced data connectors. It is a 15-Pin Female
“D” Connector. Refer to Table 5-16 for connector pinouts.
Table 5-16. G.703 BAL - 15-Pin Connector (J10)
Pin Number Signal Description Direction
1 SD-A Send Data A (-) Input
2 GND Ground –
9 SD-B Send Data B (+) Input
7 BAL EXC-A External Clock A (-) Input
8 BAL EXC-B External Clock B (+) Input
3 RD-A Receive Data A (-) Output
4 GND Ground –
11 RD-B Receive Data B (+) Output
12 DDO-A Drop Data Out A (-) Output
5 DDO-B Drop Data Out B (+) Output
13 IDI-A Insert Data In A (-) Input
6 IDI-B Insert Data In B (+) Input
14 MOD FLT Mod Fault – Open Collector Output
15 DMD FLT Demod Fault – Open Collector Output
5.6.16 ESC 64K Data/Voice/Async (J17)
J17 serves different purposes depending upon configuration
IDR Mode – 64 K Data or Voice depending upon Front Panel selection.
IBS or D&I Mode – Async Port
It is a 9-Pin Female “D” Connector. Refer to Tables 5-17 through 5-19 for connector pinouts.