Filter
Top Products
ISDN Interfaces
PRI/BRI Call Monitoring
Strata CTX I&M 06/04 7-37
ISDN Interfaces
PRI/BRI Call Monitoring
The Strata CTX ISDN circuit cards provide an RS-232 monitor function that enables you to
monitor the ISDN D-channel call progress layer two and three messages (setup, connect, and
release). This data can be monitored live, saved to a file, and/or printed using a PC with
communication software.
The hardware connections and communication parameters for the ISDN monitor port are shown in
Figure 7-32. Once this connection is setup and established, call monitoring data continues to be
sent (on the fly) as PRI and BRI calls are originated or received.
Two sample printouts from the RPTU monitor are provided. Figure 7-32 shows typical ISDN PRI
start-up and synchronization sequences that occur at connection and power on. Figure 7-33 shows
typical ISDN PRI outgoing call setup and release sequences. BRI monitor data is similar to PRI
monitor data.
The communication parameters for all call-monitor jacks are 9600 bps, 7, 1, even.
Note The RPTU, RBSU and RBUU ISDN interface PCBs each have a call-monitor jack. The pin
numbering and communication parameters are the same for each call-monitor jack. The
call-monitor jack on each PCB provides data only for the circuits of the PCB on which it
appears.
Figure 7-32 Call-monitor Jack for the RPTU, RBSU, and RBUU
Call Monitor Output for ISDN
See the following figures for examples of Call Monitor Output printouts.
RD
TD
DSR
DTR
DCD
SG
1
2
3
4
5
6
Call-monitor jack (RJ12)
pin numbering
Dealer-supplied 6-wire
telephone modular cord
(cross-pinned)
Call-monitor jack
PC with communication
software - such as ProComm™
PC DB9 or
DB25 Com port
Toshiba PPTC9 or
PPTC25F
Strata PRI or BRI PCB Monitor Jack
4696