Installation guide

1-12 Chapter 1: Installation
SP201-SA™ Customization and Maintenance Guide
a On the SP230: Connect a serial RS232 straight-through DB25 cable to
the CCI's male DB25 connector and to the external modem.
(Connection to the CCI lets you communicate with the CCI’s
corresponding SCM. The CCI’s serial port is physical DCE.)
Note: Older versions of the CCI may have a female DB25
connector, physical DTE. In this case, one end of the cable will need
a DB25 gender changer. The cable will also need a null modem
adapter at the modem connector.
b On an SP201, SP201-SA, or R2Adapter: Connect a serial RS232
female-DB9-to-male-DB25 straight-through cable to the SignalPath's
DB9 connector and to the external modem’s DB25 connector. Attach
a DB9 male-male gender changer at the SignalPath connector, and
attach a DB25 null modem adapter at the modem connector.
Note: Figure 1-3 shows the null modem adapter’s pin mapping.
Figure 1-3. DB25 Null Modem Adapter Pin Mapping
6 Use an RJ11 cable to connect each modem to a telephone jack. Make
sure you know the telephone number for each modem.