B-Channel Network Layer; Transport Layer - Gestetner B003 Service Manual

ERROR CODES FOR THE ISDN OPTION

2.2.6 B-CHANNEL NETWORK LAYER

Code
7-80 A packet having an abnormal GFI was received
7-81 A packet was received that had a logical channel number different
from the logical channel being used for the communication
7-82 A packet containing a format error was received
7-83 A packet containing an LI error was received
7-84 A CN packet was received that had a PID different from 02
7-85 Unsupported packet type received
7-86 Abnormal or unsupported facility received
7-87 P(s) sequence number error
7-88 P(r) sequence number error
7-89 A reset using S:RQ or R:RI occurred
7-90 A restart using S:RQ or R:SI occurred
7-91 Call set-up error; in reply to S:CR, R:CI was received to indicate
rejection of the call
7-92 T20 timeout; timeout while waiting for an SF packet
7-93 T21 timeout; timeout while waiting for a CC packet
7-94 T22 timeout; timeout while waiting for an RF packet
7-95 T23 timeout; timeout while waiting for a CF packet
7-96 T10 timeout; timeout while waiting for the first frame

2.2.7 TRANSPORT LAYER

Code
8-00 Invalid block received
8-01 TCC block received
8-02 TBR block received
8-05 TCR block; block format error
8-06 TCR block; block size parameter LI error
8-07 TCR block; extended addressing LI error
8-08 TCR block; block size length error
8-10 TCA block; block format error
8-11 TCA block; Tx origin reference data in TCR disagreed with the address
reference data in TCA
8-12 TCA block; octet 7 did not equal 0
8-13 TCA block; extended addressing LI error
8-14 TCA block; block size exceeded that set by TCR
8-15 TCA block; block size parameter LI error
8-20 TDT block; block format error
8-21 TDT block; octet 3 did not equal either 00 or 80(H)
8-22 TDT block; the end indicator was "Continue" even though there was no
field data
TDT block; an end block with no field data was received after an end
8-23
indicator of "End"
8-26 Timeout during state 0.2
8-27 Timeout during state 1.1
8-28 Timeout during state 0.3
B003/B004/B006/B007
Probable Cause
Probable Cause
2-12
Action
6
6
6
7
7
7
7
6
6
6
6
7
6
6
6
6
6
Action
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
SM