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4.1 Troubleshooting
Installation Manual 235
306 E1 Channel Block
failure
• Network (digital trunk)
malfunction
• Optional service card
malfunction: E1
• Wrong A/B switch setting:
E1
• Wrong termination switch
setting: E1
• Check the signals from the network
• Check the cable
• See if the A/B switch is set to A on the
corresponding optional service card
• See if the termination switch is set
properly on the corresponding optional
service card: 120 Ω when using RJ45
connector; 75 Ω when using BNC
connector
• See if the corresponding optional
service card is installed properly
• Replace the corresponding optional
service card
307 LAN No Carrier • IP-GW card not connected
to the LAN
• Check the connection between the
LAN and IP-GW card
308 IP-GW LAN Loop
back Error
• Detection of IP-GW LAN
Loop back Test error
• Replace the corresponding optional
service card
• Collect the log data of IP-GW (refer to
the documentation for the IP-GW card)
309 IP-GW Core Data
Link Error
• Detection of IP-GW Core
data Link error
• Press the Reset Button
• Collect the log data of IP-GW (refer to
the documentation for the IP-GW card)
310* Port Link Failure • Voice Processing System
malfunction
• Ports defective on optional
service card: DHLC, DLC
• Check the Voice Processing System
• See if the corresponding optional
service card is installed properly
• Replace the corresponding optional
service card
320 IP-GW H.323
Dummy Call Test
Error
• Detection of IP-GW H.323
Dummy Call Test error
• Replace the corresponding optional
service card
• Collect the log data of IP-GW (refer to
the documentation for the IP-GW card)
321 IP-GW Gatekeeper
Error
• Detection of Gatekeeper
access error
• Check the IP address setting of the
Gatekeeper
• Check whether the Gatekeeper is
connected to the network and work
properly
• Check the route to the Gatekeeper
322 IP-GW Gatekeeper
Registration Error
• Gatekeeper Registration
is failed
• Check the Gatekeeper setting
323 IP-GW SDRAM
Failure
• Detection of IP-GW
SDRAM error
• Replace the corresponding optional
service card
324 IP-GW DPRAM
Failure
• Detection of IP-GW
DPRAM error
• Replace the corresponding optional
service card
Error Code Error Message PROBABLE CAUSE SOLUTION