3Com NETBuilder SI Using Manual - page 180
180
A
PPENDIX
D: C
ONNECTORS
AND
C
ABLES
V.35 DCE Cable
Pinouts
This cable connects the bridge/router to a V.35 DTE.
Figure 34 Flex-WAN and V.35 DCE Connectors
.
Table 28 V.35 DCE Cable Pinouts
Flex-WAN Connector
V.35 DCE Connector
Signal
Pin
Direction
Pin
Signal
Twisted Pair
*
* Unused twisted wires of a twisted pair should be connected to Shield Ground. In this cable this
is one wire of each of the twisted pairs 6 to 12.
SD/RD-
17
→
T
RD-
1
SD/RD+
18
→
R
RS-
SCTE/SCT-
19
→
AA
SCT-
2
SCTE/SCT+
20
→
Y
SCT+
Nil/SCR-
21
→
X
SCR-
3
Nil/SCR+
22
→
V
SCR+
RxC/TxCE-
25
←
W
SCTE-
4
RxC/TxCE+
26
←
U
SCTE+
RxD/TxD-
27
←
S
SD-
5
RxD/TxD+
28
←
P
SD+
DCD/LL
33
←
K
LT
6
DSR/DTR
34
←
H
DTR
7
CTS/RTS
35
←
D
RTS
8
RTS/CTS
42
→
C
CTS
9
DTR/DSR
43
→
E
DSR
10
LL/DCD
44
→
F
RLSD
11
Circuit Ground
45
-
B
Ground
12
Shield Ground
46
Cable Shield
A
Shield Ground
-
Shorting Group 1
48
49
-
-
-
-
Shorting Group 2
50
51
-
-
-
-
Shorting Group 3
53
54
55
56
-
-
-
-
60-pin Flex-WAN connector
To SuperStack II NETBuilder
V.35 female connector
To DTE
C
H
S
W
AA
A
E
K
P
U
Y
B
F
R
V
D
T
X
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
31 32 33 34 35 36 37 38 39 40 41 42 43 44 45
60 59 58 57 56 55 54 53 52 51 50 49 48 47 46