Internet Router Hardware Guide

Cable Connector P inouts
RJ-48 Pin (on T1
/E1
PIC) (Data numbering
form)
RJ-48 Pin
(Data numbering
form) Signal
33
Shield/Return/Ground
66
Shield/Return/Ground
7
No connect No connect
8
No connect No connect
9
No connect No connect
10
No connect No connect
11
No connect No connect
12
No connect No connect
13
No connect No connect
14
No connect No connect
15
No connect No connect
Table 31: RJ-48 C onnector to RJ-48 Connector (Crossover) Pinout
RJ-48 Pin (on T1/E1
PIC)
(Data numbering form)
RJ-48 Pin
(Data numbering
form) Signal
1
4
RX/Ring/– <––>TX/Ring/–
25
RX/Tip/+ <––>TX/Tip/+
4
1
TX/Ring/– <––>RX/Ring/–
52
TX/Tip/+ <––>RX/Tip/+
33
Shield/Return/Ground
66
Shield/Return/Ground
7
No connect No connect
8
No connect No connect
9
No connect No connect
10
No connect No connect
11
No connect No connect
12
No connect No connect
13
No connect No connect
14
No con
nect
No con
nect
15
No connect No connect
RJ-48 Cable Pinouts for E1 and T1 PICs 271