Table-2-7. Asynchronous Data Interface; Table 2-8. Fault/Alarm Status Interface - Comtech EF Data SLM-7650 Installation And Operation Manual

SLM-7650 Satellite Modem
Installation
2.2.2.6 Asynchronous Data Interface
EIA-485 (4-Wire)
Pin # Signal Name
1 GND
2
3
4 +TX
5 -TX
6
7
8 +RX
9 -RX
2.2.2.7 Faults Status
Connector Type = 15-pin D subminiature, female
Form C Contact Ratings = 1A maximum at 24 VDC, 0.5A at 120 VAC
Pin # Name
1 COM
2 NO
3 NC
4 COM
5 NO
6 NC
7 COM
8 NO
9 NC

Table-2-7. Asynchronous Data Interface

Asynchronous Interface, 9-Pin D Female, DCE
EIA-485 (2-Wire)
I/O Pin #
1
2
3
I 4
I 5
6
7
O 8
O 9

Table 2-8. Fault/Alarm Status Interface

Function
COMMON EQUIPMENT OK
COMMON EQ IS FAULTED
RECEIVE IS OK
RECEIVE IS FAULTED
TRANSMIT IS OK
TRANSMIT IS FAULTED
Signal Name I/O Pin #
GND 1
2
3
+TX/+RX I/O 4
-TX/-RX I/O 5
6
7
+TX/+RX I/O 8
-TX/-RX I/O 9
Specifications
Pinout
Pin # Name
10 COM
11 NO
12 NC
13 COM
14 NO
15 NC
2–5
MN/SLM7650.IOM
EIA-232
Signal Name I/O
GND
RD O
TD I
GND
DSR O
RTS I
CTS O
Function
TRANSMIT IS ALARMED
TRANSMIT IS OK
RECEIVE IS ALARMED
RECEIVE IS OK
Rev. 3