Lantronix MSS1-T, Reference Manual, Page: 105 / 117

Pinouts DB25 Connector
C - 1
C - Pinouts
In the following diagrams, unlabeled pins are not connected.
C.1 DB25 Connector
The figure below shows the pin connections of the MSS1 DB25 connector.
Figure C-1: Pinout of DB25 Serial Port
C.2 Console DB9 Connector
The figure below shows the pin connections of the MSS485 DB9 connector.
Figure C-2: Pinout of DB9 Console Port
C.3 RS-485 Connectors
The MSS485 RJ45 and Screw Terminal Block RS-485 connectors are wired in parallel. Only one of
these ports can be used at a time.
C.3.1 RS-485 RJ45 Connector
The figure below shows the pin connections of the MSS485 (RS-485) RJ45 connector only.
Figure C-3: Pinout of RS-485 RJ45 Connector
DTR (out)
CD (in)
Ground
DSR (in)
CTS (in)
RTS (out) TX (out)
RX (in)
RX TX Shield
1 5
9
6
2 - Shield
3 - TXA
4 - TXB
5 - RXB
7 - Shield
6 - RXA
1 8