Chart 3. Modem Db25 Connector To Master Port - B&B Electronics 8 PORT SMART SWITCH CE 232D4SS8 User Manual

Chart 3. Modem DB25 Connector to Master Port

Async Modem
Serial Port
DB25 Connector
2
3
4
5
7
8
20
* Pins 6 & 8 are tied together inside the 232D4SS8 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
2
3
4
5
6
7
8
20
* Pins 6 & 8 are tied together inside the 232D4SS8 and share the
same input.
B-2
Master port configured as a DTE port.
Signal
Direction
<-----------
----------->
<-----------
----------->
<--------->
----------->
<-----------
Signal
Direction
<-----------
----------->
<-----------
---------->
---------->
<--------->
----------->
<-----------
Appendix B
232D4SS8
Master Port (DTE)
DB25 Connector
2
3
4
5
7
8*
20
232D4SS8
Ports A - H (DTE)
DB25 Connector
2
3
4
5
6*
7
8*
20
232D4SS84502 Manual