V.24 (RS232) DTE Cable
The V.24 DTE cable has a DB25 (male) connector at the network end. Figure 7
illustrates the V.24 DTE cable.
Figure 7
V.24 DTE Cable
Table 12 lists the V.24 DTE cable pinouts.
V.24 (RS232) DCE Cable
The V.24 DCE cable has a DB25 (female) connector at the network end. Figure 8
illustrates the V.24 DCE cable.
Figure 8
V.24 DCE Cable
Table 12
V.24 DTE Cable Pinouts
DB28
Signal
Signal direction
DB25 (male)
Signal
6
GND
<-->
7
Circuit GND
10
MODE_DCE
7
MODE0
21
GND
<-->
1
Shield GND
1
TXD+
->
2
TXD
9
RXD+
<-
3
RXD
13
RTS+
->
4
RTS
23
CTS+
<-
5
CTS
27
DTR+
->
20
DTR
25
DSR+
<-
6
DSR
17
RXC+
<-
17
RXC
3
TXC+
<-
15
TXC
15
TXCE+
->
24
ETC
11
DCD+
<-
8
DCD
22
LL
->
18
LTST
Shielding shell
Core-shielding
layer
<-->
Shielding shell
Core-shielding
layer
Enlarged A side
Enlarged B s
DB28 Male
Label
DB25 Male
Enlarged B
Enlarged A side
DB28 Male
DB25 Female
Label
3Com Router Release Notes for V1.20
22