3Com Router 3000 Series Manual page 24

3Com Router Release Notes for V1.20
V.35 DTE Cable Pinouts (continued)
Table 14
DB28 Signal
20 RXD-
13 RTS+
23 CTS+
27 DTR+
25 DSR+
17 RXC+
18 RXC-
3 TXC+
4 TXC-
15 TXCE+
16 TXCE-
11 DCD+
22 LL
Shielding shell Core-shielding
layer
V.35 DCE Cable
The V.35 DCE cable has a 34PIN (female) connector at the network end. Figure 10
illustrates the V.35 DCE cable.
Figure 10 V.35 DCE Cable
DB28 Male
Enlarged A side
Table 15 lists V.35 DCE cable pinouts.
V.35 DCE Cable Pinouts
Table 15
DB28 Signal
6 GND
7 MODE0
8 MODE1
21 GND
19 RXD+
20 RXD-
1 TXD+
2 TXD-
23 CTS+
13 RTS+
25 DSR+
27 DTR+
24
Signal direction 34PIN (male)
<- T
-> C
<- D
-> H
<- E
<- V
<- X
? Y
? AA
-> U
-> W
<- F
-> J
<--> Core-shielding
layer
V .35 Female
Label
Signal direction 34PIN (female) Signal
<--> A
<--> B
<- P
<- S
-> R
-> T
<- C
-> D
<- H
-> E
Signal
RD-
RTS
CTS
DTR
DSR
SCR+
SCR-
SCT+
SCT-
SCTE+
SCTE-
RLSD
LL
Shielding shell
Enlarged B side
Circuit GND
Shield GND
TXD+
TXD-
RXD+
RXD-
RTS
CTS
DTR
DSR