Comtech EF Data SMS-7000 Installation And Operation Manual page 62

Installation
Table 2–9. EIA-422 Terrestrial Data Connectors (J6) (Continued)
Pin #
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
2–28
IBS
SD B 8K TXD B
ST B 8K TXC B
RD B 8K RXD B
RTS B RTS B
RT B 8K RXC B
CTS B CTS B
DM B N/C
RR B N/C
EXC B 8K RXO B
RS422 RXO B N/C
TT B N/C
GND GND
SMS-7000 Modem Protection Switch
Signal Name
IDR
A
L
D&I
Rev. 3