Nortel 4134 Instrução De Instalação
DTE X.21 serial cable
81
Table 39
DCE V.35 serial cable description
DCE V.35 serial cable description
P1 pin
P1 signal
Note
Direction
P2 signal
P2 pin
1
14
14
TXD+
TXD–
TXD–
Twisted
pair
pair
→
→
RD+
RD–
RD–
R
T
T
2
15
15
TXCE+
TXCE–
TXCE–
Twisted
pair
pair
→
→
SCR+
SCR–
SCR–
V
X
X
3
16
16
TXC+
TXC–
TXC–
Twisted
pair
pair
→
→
SCT+
SCT–
SCT–
Y
AA
AA
4
17
17
RXC+
RXC–
RXC–
Twisted
pair
pair
←
←
SCTE+
SCTE–
SCTE–
U
W
W
5
18
18
RXD+
RXD–
RXD–
Twisted
pair
pair
←
←
SD+
SD–
SD–
P
S
S
6
19
19
DCD+
DCD–
DCD–
Twisted
pair
pair
→
→
RLSD
GND
GND
F
B
B
7
8
8
DTR+
RTS+
RTS+
Twisted
pair
pair
→
→
DSR
CTS
CTS
E
D
D
11
12
12
CTS+
DSR+
DSR+
Twisted
pair
pair
←
←
RTS
DTR
DTR
C
H
H
13
26
26
LL
GND
GND
Twisted
pair
pair
←
—
LT
GND
GND
K
B
B
Shield
Shield
—
Shield
A
Shield
Shield
9
RTS–
No connect
10
CTS–
No connect
20
DTR–
No connect
21
MODE2
No connect
22
MODE1
GND
23
MODE0
GND
24
MODE3
No connect
25
DSR–
No connect
DTE X.21 serial cable
Order code: SR0018013E6
Nortel Secure Router 4134
Installation — Hardware Components
NN47263-301
01.02
Standard
10.0
7 August 2007
Copyright © 2007, Nortel Networks
.