Comtech EF Data OMS11 User Manual
Page 46
OMS11 1:1 Redundancy Switch
Connector Pinouts
TM133 – Rev. 1.1
5-13
5.8
Modem A Remote/Terminal/Fault Port on OMS11 (J2)
This port provides Fault status and RS485 Communications to the OMS11 from the OM20
(Modem A). This port utilizes an 18-Pin D38999/24FD18PN Connector. Refer to Table 5-12 for
the pinout information. .
Table 5-12 Remote/Terminal/Fault Connector (J2)
Pin No.
Signal Name
Signal
Direction
A
Receive Data RS-232
RX-232
---
B
Transmit Data RS-232
TX-232
---
C
No Connect
---
---
D
Transmit Data RS-485 (+)
TX-485-B
Output
E
Transmit Data RS-485 (-)
TX-485-A
Output
F
Receive Data RS-485 (+)
RX-485-B
Input
G
Receive Data RS-485 (-)
RX-485-A
Input
H
Ground
GND
---
J
Mod Fault – Common
MF-C
---
K
Mod Fault – NC
MF-NC
---
L
Mod Fault – NO
MF-NO
---
M
Demod Fault - Common
DF-C
---
N
Demod Fault – NO
DF-NO
---
S
Demod Fault – NC
DF-NC
---
R
Ground
GND
---
U
No Connect
---
---
P
No Connect
---
---
T
No Connect
---
---