DMD2401/DMD2401L/DMD2401 IBS/IDR Satellite Modem
Electrical Interfaces
TM065 - Rev. 3.3
5-13
5.5.9 SYNC DATA (J10)
The Synchronized Data Port (J10) is used for Synchronous Data Interface and uses RS-422,
RS-232, and V.35 Interfaces. It is a 37-Pin Female Connector. Refer to Table 5-11 for the
connector pinouts.
Table 5-11. Synchronized Data Port - 37-Pin Female – (J10)
Pin Number
Signal
Description
Direction
4
SD-A
Send Data A (-)
Input
22
SD-B
Send Data B (+)
Input
5
ST-A
Send Timing A (-)
Output
23
ST-B
Send Timing B (+)
Output
6
RD-A
Receive Data A (-)
Output
24
RD-B
Receive Data B (+)
Output
7
RS-A
Request to Send A (-)
Input
25
RS-B
Request to Send B (+)
Input
8
RT-A
Receive Timing A (-)
Output
26
RT-B
Receive Timing B (+)
Output
9
CS-A
Clear to Send A (-)
Output
14
MF
Mod Fault - Open Collector
Output
33
DF
Demod Fault - Open Collector
Output
27
CS-B
Clear to Send B (+)
Output
11
DM-A
Data Mode A (-)
Output
29
DM-B
Data Mode B (+)
Output
13
RR-A
Receiver Ready A (-)
Output
31
RR-B
Receiver Ready B (+)
Output
3
BAL EXC-A
External Clock A (-)
Input
21
BAL EXC-B
External Clock B (+)
Input
16
RX-0-A
Receive Octet A (-)
Output
34
RX-0 B
Receive Octet B (+)
Output
17
TT-A
Terminal Timing A (-)
Input
35
TT-B
Terminal Timing B (+)
Input
1, 19, 20, 37
GND
Signal Ground
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