CTI Products EXB Network Manager User Manual
Page 37
Hot-Standby EXB / Network Manager Software Manual
Network Manager
CTI Products, Inc.
Program Operation
33
68-11707-100
6.8.3 Main WAN Line Disconnected
Figure 29 Main WAN Line Disconnected
Since the loop is not complete, the Standby EXB turns on its network switch to
pass traffic over the Standby WAN line.
In this condition, the program can talk to the units as follows:
EXB
Forward
(Clockwise)
Reverse
(Counter-Clockwise)
Main (Central)
Yes
No
Standby (Central)
No
Yes
Remote Standby
No
Yes
Remote Main
No
Yes
Based upon this, the program determines that the Main WAN Line is bad.
Other possible causes for this display could be:
1. A bad cable from one of the EXBs to the Main WAN line.
2. Bad Main Central or Main Remote EXB Module.
Possibly a bad modem in an Analog / Telco EXB unit
Possibly a bad serial port on a Serial EXB unit.
- MCN RCD System Overview (46 pages)
- MCN RCD System Planner (53 pages)
- RCD Standard - Remote Comparator Display (2 pages)
- RCD Standard - Remote Comparator Display (119 pages)
- RCD Client-Server (2 pages)
- RCD Advanced Client-Server (169 pages)
- RCD Advanced Client-Server (2 pages)
- MCN Server 8000 (3 pages)
- MCN Server 8000 (232 pages)
- HIB-IP IP Interface (2 pages)
- HIB-IP IP Interface (36 pages)
- HIB-232 Serial Interface (2 pages)
- HIB-232 Serial Interface (19 pages)
- PCLTA PCI Interface (2 pages)
- PCLTA PCI Interface (33 pages)
- IIB Console Interface (2 pages)
- IIB Console Interface (26 pages)
- CIB Comparator Interface (2 pages)
- CIB Comparator Interface (40 pages)
- AIB AstroTAC Interface (2 pages)
- AIB AstroTAC Interface (19 pages)
- EXB-IM PSTN System Extender (4 pages)
- EXB-IP Ethernet System Extender (63 pages)
- EXB-IM PSTN System Extender (31 pages)
- GPIO General Purpose I/O Interface (3 pages)
- GPIO General Purpose I/O Interface (26 pages)
- GPIO-CVT Buffer/Logic Converter (2 pages)
- IOB I/O Interface (33 pages)
- CHIB CommandSTAR Lite Host Interface Module (22 pages)
- CCU Channel Control Unit (24 pages)
- CCU-2 Channel Control Unit (21 pages)
- RYB-8 Relay Board (2 pages)
- RYB-8 Relay Board (17 pages)
- Quad Router Panel (2 pages)
- OTAL On-the-Air Driver Assembly (22 pages)
- OTAL On-the Air Terminal Board and Lamp (14 pages)
- DC Distribution Panel (9 pages)
- TSAM Transmitter Steering & Audio Matrix (2 pages)
- TSAM Transmitter Steering & Audio Matrix (97 pages)
- TIB TSAM Interface (2 pages)
- TIB TSAM Interface (24 pages)
- TurboVUi Solo Client Software (1 page)
- TurboVUi Solo Client Software (12 pages)
- TurboVUi Solo Client Software (16 pages)