Vanguard Managed Solutions Vanguard 6500 PLUS User Manual
Page 94

A-4
Cables
V.11 Signals (Modulus 9/21 Enclosures)
Pin
DCE
Position
V.11
Function/Signal
Name
Pin
DTE
Position
Function/Signal
Name
1
---------------
SHIELD/FRAME
GROUND
1
---------------
SHIELD/FRAME
GROUND
2
<-------------
T (A) TRANSMITTED
DATA A
2
------------->
TRANSMITTED
DATA A
3
------------->
R (A) RECEIVED DATA A
3
<-------------
RECEIVED DATA A
4
<------------
C (A) CONTROL A
4
------------->
CONTROL A
6
------------->
I (B)
INDICATION B
6
<-------------
INDICATION B
7
--------------
SIGNAL GROUND
7
---------------
SIGNAL GROUND
8------------->
I (A)
INDICATION A
8<------------
INDICATION A
13
------------->
S (B) TRANSMIT CLOCK
B
13
<------------
TRANSMIT CLOCK
B
14
<------------
T (B) TRANSMITTED
DATA B
14
------------->
TRANSMITTED
DATA B
15
------------->
S (A) TRANSMIT CLOCK
A
15
<------------
TRANSMIT CLOCK
A
16
------------->
R (B) RECEIVED DATA B
16
<------------
RECEIVED DATA B
17
------------->
*
RECEIVE CLOCK A
17
<-------------
RECEIVE CLOCK A
19
------------->
*
RECEIVE CLOCK B
19
<-------------
RECEIVE CLOCK B
20
<-------------
C (B) CONTROL B
20
------------->
CONTROL B
23
<-------------
X (B) EXTERNAL
TRANSMIT CLOCK
B
23
------------->
EXTERNAL
TRANSMIT CLOCK
B
24
<-------------
X
(A)
EXTERNAL
TRANSMIT CLOCK
A
24
------------->
EXTERNAL
TRANSMIT CLOCK
A
* These V.11 signals are not used in the X.21 standard.