Ricoh B022, Service Manual, Page: 614 / 878

ERROR CODES FOR THE ISDN OPTION
B418 2-10 SM
2.2.1 D-CHANNEL LAYER MANAGEMENT
Code Probable Cause Action
7-00 Link reset 2
7-01 Link set-up failed because of time-out. 2
7-02 Link release failed because of time-out. 2
7-03 Link set-up parameter error 2
2.2.2 D-CHANNEL, LAYER 1
Code Probable Cause Action
7-10 T3 timeout (layer 1 activation error) 1
7-11 No connection on the S0 interface 1
7-12 Deactivated 1
2.2.3 D-CHANNEL LINK LAYER
Code Probable Cause Action
7-20 At the start of link set-up, the machine received an unsolicited S (F=1). 2
7-21 At the start of link set-up, the machine received an unsolicited DM
(F=1).
2
7-22 At TEI release, the machine received an unsolicited UA (F=1). 2
7-23 At the start of link set-up, the machine received an unsolicited DM
(F=0).
2
7-24 At TEI release, the machine received an unsolicited UA (F=0). 2
7-25 SABME received at the start of network link set-up No error
7-26 N200 retransmission error for SABME 2
7-27 N200 retransmission error for DISC 2
7-28 N200 retransmission error for situation enquiry (RR) 2
7-29 N(R) sequence number error 3
7-30 N(S) sequence number error 3
7-31 FRMR received 3
7-32 Non-standard frame received 3
7-33 Abnormal frame length 3
7-34 N201 error; information field N in the I frame exceeded N201 3
7-35 T201 timeout; timeout while waiting for checking 3
7-36 T202 timeout; timeout while waiting for ID assignment 3