Figure 3-2: Rs-366A Call Setup (Part 2) - PictureTel Concorde 4500 Servicing Manual

ACR present
Concorde•4500 lowers CRQ,
TR, and RS and sends
"Call not completed"
message to monitor.

Figure 3-2: RS-366A Call Setup (Part 2)

*Timeouts apply.
Table 3-3 lists the timeout values used by the Concorde¥4500 at the
various synchronization points in the RS-366A dialing protocol.
These values refer to the amount of time the Concorde¥4500 waits
for the indicated CSU event before abandoning a call. If a call cannot
be made, the monitor displays the message
Call Setup Using Nondialed and Dialed Devices
1
No
Yes
Concorde•4500 lowers CRQ
and checks for RR and
CTS from CSU
Start
Network call complete
No*
DSC present?
Yes
No*
RR and CS
present?
Yes
.
Unable to Dial
3-11