Perle Systems IOLINK-520 manual IOLINK-PRO & 520 Reference Manual A.13

Event Logs

* 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	No route to specified transit network
003	No route to destination
004	Channel unacceptable
006	Channel unacceptable
007	Call awarded and being delivered in an established channel
008	Prefix 0 dialed but not allowed
009	Prefix 1 dialed but not allowed
010	Prefix 1 dialed but not required
011	More digits received than allowed, call is proceeding
016	Normal call clearing
017	User busy
018	No user responding
019	No answer from user
020	Circuit operational
021	Call rejected
022	Number changed
023	Reverse charging rejected
024	Call suspended
025	Call resumed
026	Non-selected user clearing
027	Destination out of order
028	Invalid number format
029	Facility rejected
030	Response to STATUS INQUIRY
031	Normal, unspecified

IOLINK-PRO & 520 Reference Manual — A.13