Specifications

DMD20/20LBST Universal Satellite Modem Rear Panel Interfaces
MN-DMD20-20LBST Revision 14 5–19
Table 5-10. SWITCH INTERFACE Port 68-Pin High-Density Female Connector (J5)
Pin No. Signal Name Signal Direction
46
IDR ESC Backward Alarm
Out - 4 Common
ESCBWO 4C No Direction
47 External Clock Input - B BAL EXC-B Input
48 Ground GND ---
49
IDR ESC Audio Input
Channel - 1B
ESCAUDTX 1B Input
50
IDR ESC Audio Input
Channel - 2B
ESCAUDTX 2B Input
51
IDR ESC Audio Output
Channel - 1B
ESCAUDRX 1B Output
52
IDR ESC Audio Output
Channel - 2B
ESCAUDRX 2B Output
53
IDR ESC Backward Alarm
Input - 4
ESCBWI 4 Input
54
IBS ES Transmit Data – B
IDR ESC Backward Alarm
Input - 2
TX-B BWI 2 Input
55
Demod Fault Open Collector
Output
DMD FLT
Output
Open Collector
56 IBS ES Receive Data Input - B ES RXD-B Output
57 Ground GND ---
58
IDR ESC Transmit 8 Kbps
Output Clock - B
ESCTXC-B Output
59
IDR ESC Transmit 8 Kbps
Output Data - B
ESCTXD-B Input
60
IDR ESC Receive 8 Kbps
Clock Output - B
ESCRXC-B Output
61
IDR ESC Receive 8 Kbps
Data Output - B
ESCRXD-B Output
62
IDR ESC Backward Alarm
Out - 4 Normally Open
ESCBWO 4NO No Direction
63 IBS Transmit Octet Input - B TXO-B Input
64
Synchronous Data – Data Mode
Out - B
SYNC DM-B Output
65
Synchronous Data - Clear to
Send - B
SYNC CS-B Input
66 IBS Receive Octet Output - B RXO-B Output
67
Synchronous Data Request to
Send – B
SYNC RS-B Input
68
Synchronous Data Receiver
Ready - B
SYNC RR-B Output