4.1 Troubleshooting
Error Code
Error Message
250*
T1/E1 DSP failure •
251
MSG DSP failure •
300*
Digital trunk out of
synchronization
301*
Digital trunk RAI
reception
302*
Digital trunk AIS
reception
303*
Multiframe out of
synchronization
304*
Frame error
305*
Data Link failure
306
E1 Channel Block
failure
307
LAN No Carrier
310*
Port Link Failure
202
Installation Manual
PROBABLE CAUSE
Optional service card
malfunction: T1, E1
Optional service card
malfunction: MSG
•
Network (digital trunk)
malfunction
•
Optional service card
malfunction: PRI, T1,
E1
•
Wrong A/B switch
setting: PRI, T1, E1
•
Wrong termination
switch setting: PRI30,
E1
•
Data link between the
CS and CSIF card
failed
•
Data link between the
network and PRI/BRI
card failed
•
Network (digital trunk)
malfunction
•
Optional service card
malfunction: E1
•
Wrong A/B switch
setting: E1
•
Wrong termination
switch setting: E1
•
IP-GW card not
connected to the LAN
•
Voice Mail malfunction
•
Ports defective on
optional service card:
DHLC, DLC
SOLUTION
•
See if the corresponding optional
service card is installed properly
•
Replace the corresponding optional
service card
•
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
connector; 75
connector
•
See if the corresponding optional
service card is installed properly
•
Replace the corresponding optional
service card
•
Check the connection between the CS
and CSIF card
•
Check the connection between the
network and PRI/BRI card
•
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
connector; 75
connector
•
See if the corresponding optional
service card is installed properly
•
Replace the corresponding optional
service card
•
Check the connection between the
LAN and IP-GW card
•
Check the Voice Mail
•
See if the corresponding optional
service card is installed properly
•
Replace the corresponding optional
service card
when using RJ45
when using BNC
when using RJ45
when using BNC