Internet Router Hardware Guide

Cable Connector P inouts
RJ-48 Pin (on T1
/E1
PIC)
(Data numbering form)
DB-15 Pin
(Data numbering
form) Signal
14
No connect No connect
15
No connect No connect
X.21 and V.35 Cable Pinouts for EIA-530 PIC
The EIA-530 PIC accepts X.21 and V.35 cable connectors.
A V.35 connection requires an DB-25 to V.35 cable and connects to a V.35
data terminal equipment (DTE) 34-pin Winchester type male cable (one per
port). Table 34 describes the V.35 cable pinouts.
An X.21 connection requires an DB-25 to X.21 cable and connects to a X.21
DTE DB-15 male cable. Table 35 describes the X.21 cable pinouts.
Figure 120: EIA-530 PIC
g003044
S
Y
N
C
1
D
S
R
1
D
C
D
1
S
Y
N
C
0
D
S
R
0
D
C
D
0
P
O
R
T
0
P
O
R
T
1
EIA-530
Table 34: DB-25 Connector to V.35 Connector Pinout
DB-25 Pin Signal V.35 Pin Description
2TD
P
Transmit Data
14 TD S Transmit Data
3
RD R
Receive Data
16
RD
T Receive Data
4
RTS C
Ready To Send
5CTS
D
Clear To Send
6DSRE
Data Set Ready
20 DTR
H
Data Terminal Ready
24 XTC
U
DTE Transmit Clock
11 X TC
W
DTE Transmit Clock
15 TC
Y
Transmit Clock
X.21 and V.35 Cable Pinouts for EIA-530 PIC 273