Cabling the Switch

Single V.35 WAN Interface (Optional)

The Single V.35 WAN connector is located on a PCI card that offers a separate DB26S connector that provides the signals needed to interface to V.35 equipment. Included in the accessory box is a cable that maps the DB26S signals to a standard V.35 connector. Table 3-1 shows the cable pinouts.

Table 3-1.

DB26S-to-V.35 Cable Pinouts

 

 

 

 

DB26

Signal

V.35

 

 

 

 

 

1

Shield

A

 

 

 

 

 

2

TXDA

P

 

 

 

 

 

3

RXDA

R

 

 

 

 

 

4

RTSA

C

 

 

 

 

 

5

CTSA

D

 

 

 

 

 

6

DSRA

E

 

 

 

 

 

7

GND

B

 

 

 

 

 

8

DCDA

F

 

 

 

 

 

9

RXCB

X

 

 

 

 

 

10

DCDB

no conn

 

 

 

 

 

11

SCTEB

W

 

 

 

 

 

12

TXCB

AA

 

 

 

 

 

14

TXDB

S

 

 

 

 

 

15

TXCA

Y

 

 

 

 

 

16

RXDB

T

 

 

 

 

 

17

RXCA

V

 

 

 

 

 

18

LL

L

 

 

 

 

 

19

RTSB

no conn

 

 

 

 

 

20

DTRA

H

 

 

 

 

 

21

RL

N

 

 

 

 

 

22

DSRB

j

 

 

 

 

 

23

DTRB

no conn

 

 

 

 

 

24

SCTEA

U

 

 

 

 

 

25

TM

NN

 

 

 

 

 

3-5

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Image 25
Nortel Networks 1500 manual Single V.35 WAN Interface Optional, DB26S-to-V.35 Cable Pinouts