Perle Systems IOLINK-PRO IOLINK-520 - Manual (Page 56)

Event Logs
IOLINK-PRO & 520 Reference Manual — A.13
* Link X Connected
Generated when and end-to-end ISDN call has been established.
* Link X connection rejected
Generated when Link X connection is being terminated as it could not be attached to a remote site. This
may be due to usage limits or suspension resumptions.
* Link X - CSU/DSU not responding, Power Cycle Device.
Generated when the IOLINK router cannot establish communications with the CSU/DSU link module.
The power must be cycled on the IOLINK router to cause a restart of the CSU/DSU module.
* Link X Disconnect: Y
Generated when the disconnect of an ISDN call is completed. This event is generated on both sides of the
ISDN call. The cause will be one of the causes as specified in the CCITT Recommendation Q.931. Causes
of “normal call clearing”, “User busy”, and “Number changed” are printed in words, all other are numeric.
Code Description
001 Unallocated/unassigned number
002
003
004
006
007
008
009
010
011
016 No route to specified transit network
No route to destination
Channel unacceptable
Channel unacceptable
Call awarded and being delivered in an established channel
Prefix 0 dialed but not allowed
Prefix 1 dialed but not allowed
Prefix 1 dialed but not required
More digits received than allowed, call is proceeding
Normal call clearing
017 User busy
018 No user responding
019
020
021 No answer from user
Circuit operational
Call rejected
022 Number changed
023
024
025
026
027
028 Reverse charging rejected
Call suspended
Call resumed
Non-selected user clearing
Destination out of order
Invalid number format
029 Facility rejected
030
031 Response to STATUS INQUIRY
Normal, unspecified