WESTELL.COM
Page 4
Remote RMM-700 Installation Guide
Pinouts
1-800-377-8766
Pinouts
SiteBus Port
Pin
Signal
1
No connection
2
+5
3
No connection
4
data
6
ground
6
No connection
7
No connection
8
No connection
8
1
Asynchronous Serial Ports
RS232 Mode
Pin
Signal
Direction
1
RTS
Output
2
DTR
Output
3
TXD
Output
4
Ground
5
Ground
6
RXD
Input
7
DSR
Input
8
CTS
Input
RS422 Mode
Full Duplex
Pin
Signal
Direction
1
Reserved*
2
TXb
Output
3
TXa
Output
4
Ground
5
Ground
6
RXa
Input
7
RXb
Input
8
Reserved*
8
1
RS485 Mode
Half Duplex
Pin
Signal
Direction
1
Reserved*
2
TXRXb
Bidirectional
3
TXRXa
Bidirectional
4
Ground
5
Ground
6
Hi-Z
7
Hi-Z
8
Reserved*
* On serial port 2, these pins
are reserved for diagnostic
access. Contact Westell
for
more information.
Ethernet Switch Ports
Pin
Signal
Direction
1
RX+
Input
2
RX-
Input
3
TX+
Output
4 Termination
5 Termination
6
TX-
Output
7 Termination
Input
8 Termination
Input
Illuminates when a
link is established.
Blinks when data
transfer is active.
8
1
