Specifications

DMD20/20LBST Universal Satellite Modem Rear Panel Interfaces
MN-DMD20-20LBST Revision 14 5–18
Table 5-10. SWITCH INTERFACE Port 68-Pin High-Density Female Connector (J5)
Pin No. Signal Name Signal Direction
24
IDR ESC Transmit 8 Kbps
Output Clock
ESCTXC-A Output
25
IDR ESC Transmit 8 Kbps
Output Data
ESCTXD-A Input
26
IDR ESC Receive 8 Kbps
Output Clock
ESCRXC-A Output
27
IDR ESC Receive 8 Kbps
Output Data
ESCRXD-A Output
28
IDR ESC Backward Alarm
Output - 4 Normally Closed
ESCBWO 4NC No Direction
29 IBS Transmit Octet Input - A TXO-A Input
30 Synchronous Data Mode A SYNC DM-A Output
31
Synchronous Data Clear to
Send - A
SYNC CS-A Output
32
IBS Receive Octet
Output - A
RXO-A Output
33
Synchronous Data Request to
Send - A
SYNC RS-A Input
34
Synchronous Data Receiver
Ready - A
SYNC RR-A Output
35 G.703 Send Data Input - B G703B SD-B Input
36
Synchronous Data Send Data
Input - B
SYNC SD-B Input
37
IDR ESC Backward Alarm
Out - 1 Normally Closed
ESCBWO 1 NC No Direction
38 G.703 Insert Data Input - B G703B IDI-B Input
39
Synchronous Data Send Timing
Output - B
SYNC ST-B Output
40
IDR ESC Backward Alarm
Out - 2 Common
ESCBWO 2C No Direction
41
Synchronous Data Terminal
Timing – B
SYNC TT-B Input
42
IDR ESC Backward Alarm
Output - 2 Normally Open
ESCBWO 2NO No Direction
43
G.703 Drop Data Out - B
Synchronous Data Receive
Timing – B
DDO-B RT-B Output
44
IDR ESC Backward Alarm
Out - 3 Normally Closed
ESCBWO 3NC No Direction
45
G.703 Insert Data Out
Synchronous Data
IDO-B RD-B Output