Specifications

B-2
232XSSD43800 Manual
B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350
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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.