Ricoh A230, Service Manual, Page: 33 / 1134

xxiii
SM A230/A231/A232
ISDN UNIT
TABLE OF CONTENTS
1. INSTALLATION........................................................................... 1-1
1.1 INSTALLATION PROCEDURE ................................................................ 1-1
1.1.1 USER LEVEL PROGRAMMING ...................................................... 1-1
1.1.2 SERVICE LEVEL PROGRAMMING ................................................ 1-2
1.2 SWITCH SETTINGS................................................................................. 1-4
1.2.1 INTERNAL SWITCHES ................................................................... 1-4
1.2.2 PARAMETER SWITCHES............................................................... 1-5
2. SERVICE TABLES AND PROCEDURES ................................... 2-1
2.1 SERVICE LEVEL FUNCTIONS ................................................................ 2-1
2.2 BIT SWITCHES ........................................................................................ 2-2
2.2.1 G4 INTERNAL SWITCHES.............................................................. 2-2
2.2.2 G4 PARAMETER SWITCHES ....................................................... 2-10
2.3 DEDICATED TRANSMISSION PARAMETERS ..................................... 2-15
3. TROUBLESHOOTING................................................................. 3-1
3.1 ERROR CODES ....................................................................................... 3-1
3.1.1 D-CHANNEL LAYER MANAGEMENT............................................. 3-2
3.1.2 D-CHANNEL, LAYER 1 ................................................................... 3-2
3.1.3 D-CHANNEL LINK LAYER .............................................................. 3-2
3.1.4 D-CHANNEL NETWORK LAYER .................................................... 3-3
3.1.5 B-CHANNEL LINK LAYER............................................................... 3-3
3.1.6 B-CHANNEL NETWORK LAYER .................................................... 3-4
3.1.7 TRANSPORT LAYER ...................................................................... 3-4
3.1.8 SESSION LAYER ............................................................................ 3-5
3.1.9 DOCUMENT LAYER ....................................................................... 3-6
3.1.10 PRESENTATION LAYER .............................................................. 3-6
3.2 G4CCU STATUS CODES ........................................................................ 3-7
3.2.1 LAYER 1 (PHYSICAL LAYER) ........................................................ 3-7
3.2.2 LAYER 2 (LINK LAYER) .................................................................. 3-7
3.2.3 NETWORK LAYER (LAYER 3)........................................................ 3-8
3.2.4 TRANSPORT LAYER (LAYER 4) .................................................... 3-8
3.2.5 SESSION LAYER, SESSION CONTROL LAYER (LAYER 5) ......... 3-8
3.2.6 SESSION LAYER, DOCUMENT CONTROL LAYER (LAYER 5) .... 3-8
3.3 LEDS ........................................................................................................ 3-9
3.4 BACK-TO-BACK TEST........................................................................... 3-10
APPENDIX A
A. D-CHANNEL LAYER 1 DUMP LIST ............................................A-1
1.1 HOW TO PRINT THE DUMP LIST ........................................................... A-1
1.2 HOW TO READ THE DUMP LIST ............................................................ A-2
Rev. 08/98