3com S27x User Manual
Cables
A-5
The following table shows V.11 signals with V.11 DIMs on the SDB card.
V11 Signals (SDB)
Pin
DCE
Position
V.11
Function/
Signal
Name
Pin
DTE
Position
Function/
Signal
Name
1
---------------
SHIELD/
FRAME
GROUND
FRAME
GROUND
1
---------------
SHIELD/
FRAME
GROUND
FRAME
GROUND
2
<-------------- T (A)
TRANSMIT
DATA A
DATA A
2
------------->
TRANSMIT
DATA A
DATA A
3
--------------> R (A)
RECEIVE
DATA A
DATA A
3
<-------------- RECEIVE
DATA A
4
<-------------- C (A)
CONTROL A 4
---------------
>
>
CONTROL A
6
--------------> I (B)
INDICATION
B
B
6
<-------------- INDICATION
B
7
---------------
SIGNAL
GROUND
GROUND
7
---------------
SIGNAL
GROUND
GROUND
8
--------------> I (A)
INDICATION
A
A
8
<-------------- INDICATION
A
13
SIGNAL
TIMING B
TIMING B
13
SIGNAL
TIMING B
TIMING B
14
<-------------- T (B)
TRANSMIT
DATA B
DATA B
14
--------------> TRANSMIT
DATA B
15
--------------> S (A)
SIGNAL
TIMING (A)
TIMING (A)
15
<-------------- SIGNAL
TIMING (A)
16
--------------> R (B)
RECEIVE
DATA B
DATA B
16
<-------------- RECEIVE
DATA B
20
<-------------- C (B)
CONTROL B
20
--------------> CONTROL B
23
<-------------- X (B)
EXTERNAL
CLOCK B
CLOCK B
23
--------------> EXTERNAL
CLOCK B
24
<-------------- X (A)
EXTERNAL
CLOCK A
CLOCK A
24
--------------> EXTERNAL
CLOCK A