Radyne DMD2401 Operation Manual page 149

Electrical Interfaces
5.5.6 ALARM (J6)
The modem has two Form-C Dry Contact Alarm Relays onboard and an Alarm Connector located
on the rear panel, the 9-pin male "D" sub connector (J6).
The two relays are designated Modulator Alarm and Demodulator Alarm. Non-Alarm is defined as
the powered state of the relay. Thus, if there is a Modulator Alarm and/or Demodulator Alarm, the
pins will be connected as shown in Table 5-3:
The pin definitions for J6 are shown in Table 5-4.
Note: The NC and NO (Normally Closed and Normally Open) nomenclature applies to non-
energized relays.
5.5.7 REMOTE (J7)
The Remote Port (J7) is the RS-485 connection for remote monitor and control of the modem. It
is a 9-Pin Female "D" Connector. Refer to Table 5-5 for the connector pinouts.
5.5.8 SWITCH INTERFACE (J8)
The Switch Interface Port (J8) is the redundancy switch connector. It is a 68-Pin High-Density
Female Connector. Refer to Table 5-10 for connector pinouts.
Table 5-10. Switch Interface Port - 68-Pin High-Density Female – (J8)
Pin Number Signal
1 G.703B SD-A
2 SYNC SD-A
3 ESCBWO 1C
4 G.703B IDI-A
5 SYNC ST-A
6 ESCBWO 1NO
7 SYNC TT-A
8 ESCBWO 2NC
9 DDO-A RT-A
10 ESCBWO 3C
11 IDO-A RD-A
12 ESCBWO 3NO
13 BAL EXC-A
14 GND
15 ESCAUDTX 1A
5-10
DMD2401/DMD2401L/DMD2401 IBS/IDR Satellite Modem
Description
G.703 Send Data Input A
Synchronous Data Send Data Input -A
IDR ESC Backward Alarm Out - 1 Common
G.703 Insert Data Input - A
Synchronous Data Send Timing Output - A
IDR ESC Backward Alarm Out - 1 Normally
Open
Synchronous Data Terminal Timing Input A
IDR ESC Backward Alarm Out - 2 Normally
Closed
G.703 Drop Data Out A - Synchronous
Data Receive Timing Output - A
IDR ESC Backward Alarm Output - 3
Common
G.703 Insert Data Out A - Synchronous
Data Receive Data A
IDR ESC Backward Alarm Output - 3
Normally Open
External Clock Input - A
Ground
IDR ESC Audio Input Channel 1A
Direction
Input
Input
Output
Input
Output
Output
Input
Output
Output
Output
Output
Output
Input
–
Input
TM065 – Rev. 3.3