B-2
232XSSD43800 Manual
B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350
PH (815) 433-5100 -- FAX (815) 433-5104
Chart 3. Modem DB25 Connector to Master Port
Master port configured as a DTE port.
Async Modem
Serial Port
DB25 Connector
Signal
Direction
232XSSD4
Master Port (DTE)
DB25 Connector
2
<-----------
2
3
----------->
3
4
<-----------
4
5
----------->
5
7
<--------->
7
8
----------->
8*
20
<-----------
20
* Pins 6 & 8 are tied together inside the 232XSSD4 and share the
same input.
NOTE: When using chart 3 above and connecting a DTE device to
ports A - H of the smart switch, refer to Charts 7 and 8.
Chart 4. DCE Device w/DB25 Connector to Ports A - H (DTE)
Master port configured as a DCE port.
DCE Device
Serial Port
DB25 Connector
Signal
Direction
232XSSD4
Ports A - H (DTE)
DB25 Connector
2
<-----------
2
3
----------->
3
4
<-----------
4
5
---------->
5
6
---------->
6*
7
<--------->
7
8
----------->
8*
20
<-----------
20
* Pins 6 & 8 are tied together inside the 232XSSD4 and share the
same input.
