42
A
PPENDIX
B: T
ECHNICAL
S
PECIFICATIONS
AND
P
IN
A
SSIGNMENTS
Pin assignments are the same for the 10BASE-T and 100BASE-TX RJ45
connectors.
Table 12
Pin Assignments
Pin Number
Signal
Function
Input Ports (Data + Power)
1
Receive data from DTE / NIC
2
RxData –
Receive data from DTE / NIC
3
Transmit data to DTE / NIC
4
– 24vDC +
Positive signal feeding
5
– 24vDC +
Positive signal feeding
6
TxData –
Transmit data to DTE / NIC
7
– 24vDC (–)
Return signal feeding
8
– 24vDC (–)
Return signal feeding
Input Ports (Data only)
1
Transmit data to switch
2
TxData –
Transmit data to switch
3
Receive data from switch
4
Not assigned
Terminated
5
Not assigned
Terminated
6
RxData –
Receive data from switch
7
Not assigned
Terminated
8
Not assigned
Terminated
