TELCOLINK DT - AccessDSL NTU
User
Manual
Version: 2.5
Page 61 of 66
X.21 DTE
#
DB15, female
(a/b)
DB25, male
(a/b)
FGND
G
S
R
T
C
I
X
1
8
6/13
4/11
2/9
3/10
5/12
7/14
1
7
17/9
3/16
2/14
4/19
5/13
24/11
Note: join together pins 22&23 and 6&20 at DB-25 side
X.21 DCE
#
DB15, male (a/b)
DB25, male (a/b)
FGND
G
S
R
T
C
I
X
1
8
6/13
4/11
2/9
3/10
5/12
7/14
1
7
24/11
2/14
3/16
5/13
4/19
17/9
Note: join together pins 22&23 and 6&20 at DB-25 side
X.21/ISO 4903
15 Pin Connector
male
1
9
15
8
8
1
15
9
X.21/ISO 4903
15 Pin Connectors
female
