Lantronix
SDSTX3110-124-LRT-B User Guide
33686 Rev. C
17
3.5 Connection
3.5.1 10/100BASE-T(X) Pin Assignments
Based on the link type, the device can use CAT 3, 4, 5, or 5e UTP cables to connect to any other network devices
(PCs, servers, switches, routers, or hubs). See the table below for cable specifications.
With 10/100BASE-T(X) cables, pins 1 and 2 are used for transmitting data, and pins 3 and 6 are used for
receiving data. Note that the
+
and
-
signs represent the polarity of the wires that make up each pair.
Pin Number
Assignment
1
TD+
2
TD-
3
RD+
4
Not used
5
Not used
6
RD-
7
Not used
8
Not used
3.5.2 Cable Types and Specifications
Cable
Type
Max. Length
Connector
10BASE-T
CAT 3, 4, 5 100-ohm
UTP 100 m (328 ft)
RJ-45
100BASE-TX
CAT 5 100-ohm UTP
UTP 100 m (328 ft)
RJ-45
