User's Manual
V34bis Fax-modem - AJ 2885 P
AJ 2885 P - Page 45
9.3.
X21 – V11 Adaptation Cable
An X21 adaptation cable can be designed according to the following cabling matrix :
DB25M Pin
V11-X21 Signal
DB15F Pin
1
Mechanical GND
1
2 TA
(Transmit) 2
3 RA
(Receive) 4
4
5
6
7 GND 8
8 IA
(Indication) 5
9
10
11
XB (DTE Clock)
14
12 SB
(Clock) 13
13
14 TB
(Transmit) 9
15
16 RB
(Receive) 11
17
SA (Clock)
6
18
19 IB
(Indication) 12
20 CA
(Control) 3
21
22
23 CB
(Control) 10
24
XA (DTE Clock)
7
25
A DB25M – DB15F adaptation cable may be provided as an option with the CXR reference : CA
100 766
