User`s guide
Appendix A: Cable Requirement
A CAT 3,4 or 5 UTP (unshielded twisted pair) cable is typically used to connect the Ethernet device to the Modem.
A 10Base-T cable often consists of four pairs of wires, two of which are used for transmission. The connector at the end of the 10Base-T
cable is referred to as an RJ-45 connector and it consists of eight pins.
PIN
MNEMONIC FUNCTION
The Ethernet standard uses pins 1,2,3 and 6 for data transmission purposes.
Table RJ-45 Ethernet Connector Pin out Assignments
1
T
X
+ Ethernet differential
T
ransmit si
g
nal
(
+
)
2 T
X
- Ethernet differential
T
ransmit signal(-)
3 R
X
+ Ethernet differential receive si
g
nal
(
+
)
4 NC Unused
5 NC Unused
6 R
X
- Ethernet differential receive signal(-)
7 NC Unused
8 NC Unused
13