User guide

SC932C 9-Pin to RS232-DCE Interface
2
Most phone modems can be configured to respond to the DTR line, although this is
not always the default setting. Although this feature is sometimes controlled by a
hardware configuration switch, more often it is a software setting, e.g. AT&D2&W
is the command for a Hayes-compatible modem to force the modem to follow the
DTR status.
3. Other Applications
The SC932C can be used in more specialist applications. Appendix B gives
installation details where even lower power consumption may be possible, and also
for applications where higher power outputs for the RS232 device are required.