
Network Cable Specifications and Connector Pinouts
Table 62: RJ-48 Connector to RJ-48 Connector (Straight) Pinout (continued)
RJ-48 Pin (on T1/E1
PIM) (Data Numbering
Form)
RJ-48 Pin
(Data Numbering
Form) Signal
33
Shield/Return/Ground
66
Shield/Retur
n/Ground
7
No connect No connect
8
No connect No connect
Table 63: RJ-48 Connector to RJ-48 Connector (Crossover) Pinout
RJ-48 Pin (on T1/E1
PIM)
(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/Re
turn/Ground
66
Shield/Return/Ground
7
No connect No connect
8
No connect No connect
Table 64: RJ-48 Connector to DB-15 Connector (Straight) Pinout
RJ-48 Pin (on T1/E1
PIM)
(Data numbering form)
DB-15 Pin
(Data num
bering
form) Signal
111
RX/Ring/– <––>RX/Ring/–
23
RX/Tip/+ <––>RX/Tip/+
4
9
TX/Ring/– <––>TX/Ring/–
51
TX/Tip/
+ <––>TX/Tip/+
3
4
Shield/Return/Ground
62
Shield/Return/Ground
7
No connect No connect
8
No connect No connect
9
No connect No connect
10
No connect No connect
E1 and T1 RJ-48 Cable Pinouts 197
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