Operating instructions

DMD20/DMD20 LBST Universal Satellite Modem Rear Panel Interfaces
TM103 – Rev. 2.8 5-19
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
5.7.6 SD (DDI) (J6)
The Send Data (Drop Data In) Port (Unbalanced) is a 75-Ohm Female BNC Connector.
5.7.7 DDO (J7)
The Drop Data Out Port (Unbalanced) is a 75-Ohm Female BNC Connector.
5.7.8 IDI (J8)
The Insert Data In Port (Unbalanced) is a 75-Ohm Female BNC Connector.
5.7.9 SD (IDO) (J9)
The Send Data (Insert Data Out) Port (Unbalanced) is a 75-Ohm Female BNC Connector.
5.8 Ethernet Data Interface (Optional)
The optional modem Ethernet Data Interface provides four RJ-45 10/100 Base-T interface. The
Ethernet interface supports Auto-Crossover and Auto-Sensing. The Ethernet port are referred to
as JS1 through JS4.
JS1 is Port 1
JS2 is Port 2
JS3 is Port 3
JS4 is Port 4
Refer to Figure 5-1 and 5-2 for outline and Appendix I for setup & configuration.