Specifications

Page 16–6
FOCUS System Manual
Repeat Steps 5–7 for channel B. Be sure to
connect to channel B on both (232) module
interfaces.
To test the 232 modules with modems, complete
the following steps:
1. Install the 232 module and interface.
2. Start the FCS.
3. Bring the FOCUS chassis “on line”.
4. Unlock the FOCUS chassis.
5. Connect the two modems to the modules.
Connect one modem to channel A of the
module interface on one chassis and the other
modem to channel A of the module interface
on the other chassis.
6. Test the modems.
Dial from the “local” modem to see if you can
communicate with the “distant” one. Then
reverse direction, dialing from the “distant”
chassis to the “local” one.
Repeat Steps 5–6 for channel B.
16.6 Drawings
The schematic for the Low Speed Data (232)
Module and interface is available upon request.
The location of each of the components on the
Low Speed Data (232) Module and interface are
shown at the end of this chapter.
Steps 1–4 are the same as for the “data flow”
test. If you have just done them for that test,
skip them here and begin with Step 5.
NOTE
Table 16–3. Supported Control Signals.
Data Flow DB-9 pin No. Data & Modem Control Signals Supported
IN 3 TX Transmit Data
OUT 2 RX Receive Data
IN 7 RTS Request to Send
OUT 8 CTS Clear to Send
IN 4 DTR Data Terminal Ready
OUT 6 DSR Data Set Ready