Specifications

Chapter 6 Troubleshooting and Diagnostics Installation and Operation Manual
6-26 Testing the Units IPmux-8/16 Ver. 6.00
Activating Minor/Major Alarms
The first step is to activate all relevant alarms in IPmux-8/16 via a terminal or an
NMS. This is performed via the Management Configuration screen.
• Major alarm in IPmux-8/16 – a relay between pins 4 and 9 is closed.
• Minor alarm in IPmux-8/16 – a relay between pins 3 and 5 is closed.
• General alarm – used for generating traps towards the NMS and the
IPmux-8/16 Event Log file, in case of external user equipment failure, such as
air-conditioning failure. In order to enable this alarm, connect an external
circuit to one of the general alarm pins: 1, 2, 6, 7 and to the ground pin=
no.8. Upon circuit closure between 8 and 1, 2, 6 or 7, a general alarm is
reported in the IPmux-8/16 Event Log file and a trap is sent to the NMS (set
the System Trap Option in the Manager List window to On). A Log file entry
is recorded regardless of the system trap option configuration.
• A major alarm caused by a power supply or fan failure will always be activated in
the dry contact; it cannot be masked.
• For general alarm there is no need to supply external voltage; the external
equipment should only close the circuit.
For minor or major alarms, the monitoring equipment should supply an input
voltage that does not exceed 30 VDC or VAC 2A, or 60 VDC 1A.
6.3 Testing the Units
IPmux-8/16 diagnostic capabilities include loopbacks, ping test and route tracing
utility.
Running Diagnostic Loopbacks
IPmux-8/16 supports activation of the internal and external loopbacks.
External Loopback
IPmux-8/16 can be set to an external loopback to test the connection between a
TDM port and the PBX. In this mode, data coming from the PBX is both looped
back to the PBX and transmitted forward to the IP network (see
Figure 6-10).
Local IPmux-16
TDM Data IP Data
PBX
IP/Ethernet
Network
Figure 6-10. External Loopback
Notes
Warning