Comtech EF Data SMS-301 - Manual (Page 29)

SMS-301 Redundancy Switch Installation
Rev. 3 2–7
2.3.2.2 Data I/O Connector (J1, J2, J3), 37-Pin (PL/5952)
Note: For EIA-422/-449, V.35, and G.703 applications.
The 37-pin D subminiature connector pin assignments are shown in Table 2-5.
Table 2-5. Data I/O Connectors, 37-Pin
Pin # EIA-422/-449 V.35 G.703 Signal Function
1 SG SG SG Signal Ground
3 MF MF MF MOD Fault
4
22
SD-A
SD-B SD-A
SD-B SD-A
SD-B Send Data
5
23
ST-A
ST-B ST-A
ST-B Send Timing
6
24
RD-A
RD-B RD-A
RD-B RD-A
RD-B Receive Data
7
25
RS-A
RS-B RS-A
RS-B Request to Send
8
26
RT-A
RT-B RT-A
RT-B Receiver Timing
9
27
CS-A
CS-B CS-A
CS-B Clear to Send
11
29 DM-A
DM-B DM-A
DM-B Data Mode
13
31 RR-A
RR-B RR-A
RR-B Receiver Ready
17
35 TT-A
TT-B TT-A
TT-B Terminal Timing
16
34 MC-A
MC-B MC-A
MC-B MC-A
MC-B Master Clock
(Input)
19 SG SG SG Signal Ground
20 SG SG SG Signal Ground
21 DF DF DF DEMOD Fault
37 SG SG SG Signal Ground
The following shows the jumper configurations for EIA-422/449, V.35, and G.703.
EIA-422/449/V.35 G.703
JP2 JP1
JP3 JP6
JP4 JP7
JP5 JP6
JP9