Справочник Пользователя для Vanguard Managed Solutions Vanguard 342
3-20
Installation and Replacement
Cabling the Vanguard 342
DB25 X.21/V.11 Pinouts
Connector Pinout
This table shows the DB25 X.21/V.11 connector pinouts for DCE/DTE mode. To use
DTE to DTE or DCE to DCE mode, a crossover adapter cable is required. Refer to
Figure 3-5 on page 3-21 for crossover cable connections:
DTE to DTE or DCE to DCE mode, a crossover adapter cable is required. Refer to
Figure 3-5 on page 3-21 for crossover cable connections:
Note
To use DTE mode, the Interface Options parameter must be set to XOVER. For
details on setting the X.21/V.11 Interface Options, see “Setting the Interface
Options” section on page 3-10.
details on setting the X.21/V.11 Interface Options, see “Setting the Interface
Options” section on page 3-10.
Port 3
Pin
DCE Signal
Function/Signal
Name
Port 3
Pin
DTE Signal
using
Crossover
Adapter Cable
Function/Signal
Name
1
-------------
PROTECTIVE
GROUND
GROUND
1
-------------
PROTECTIVE
GROUND
GROUND
2
<------------
TRANSMITTED
DATA-A
DATA-A
2
------------>
TRANSMITTED
DATA-A
DATA-A
3
------------>
RECEIVED DATA-A
3
<------------
RECEIVED DATA-A
4
<------------
CONTROL-A
4
------------>
CONTROL-A
5
-------------
(no connection)
5
-------------
(no connection)
6
------------>
INDICATION-B
6
<------------
INDICATION-B
7
-------------
SIGNAL GROUND
7
-------------
SIGNAL GROUND
8------------>
INDICATION-A
8<------------
INDICATION-A
14
<------------
TRANSMITTED
DATA-B
DATA-B
14
------------>
TRANSMITTED
DATA-B
DATA-B
15
------------>
SIGNAL ELEMENT
TIMING-A
TIMING-A
15
-------------
(no connection)
16
------------>
RECEIVED DATA-B
16
<------------
RECEIVED DATA-B
17
(no signal)
RECEIVE CLOCK-A
17
(no signal)
RECEIVE CLOCK-A
18(no signal)
RECEIVE CLOCK-B
18(no signal)
RECEIVE CLOCK-B
20
<------------
CONTROL-B
20
------------>
CONTROL-B
21
------------>
SIGNAL ELEMENT
TIMING-B
TIMING-B
21
-------------
(no connection)
22
<------------
EXTERNAL
TRANSMIT
CLOCK B
22
------------>
EXTERNAL
TRANSMIT
CLOCK B
24
<------------
EXTERNAL
TRANSMIT
CLOCK A
24
------------>
EXTERNAL
TRANSMIT
CLOCK A
25
--------------
(no connection)
25
-------------
(no connection)