IBM 5280 Technical Newsletter page 3

Distributed data system / programmable data station
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PRINTER
705 Address . . . . . . . '.' . . . . . . . . . . . . . . . . . . . . • 105
711 Twinaxial Cable Continuity and Polarity Check . . . . . . . 106
713 Twinaxial Cable Quality Check . . . . . . . . . . . . . . . . 107
715 Station Protector Service Check. . . . . . . . . . . • . . . . 115
731 Printer MPU Card (A-D5). . . . . . . . . . . . . . . . . . . . 116
741 Pri nter Cable Diagram. . . . . . . . . . . . . . . . . . . . . . 117
MAGN ETIC STR IPE READER
751 Magnetic Stripe Reader Service Check . . • . . . . • . . . . 118
761 Magnetic Stripe Reader Removal and Replacement • . . . . 118
771 1 MSR and Elapsed-Time Counter Card (A-B1) . . • . . . . 119
7734 MSR and Elapsed-Time Counter Card (A-B1) . . . . • . . 119
785 MSR Cable Diagram (Machines without Communications
Feature) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
787 MSR Cable Diagram (Machines with Communications
Feature) . . . . . . . . . . . . . . . . . . . . . . . • . . . . . . . 122
COMMUNICATIONS
811 Communications MPU Card Jumpers (A-E5). . . . . . .
123
812 38LS Card Identification (A-D7) . . . . . . . . . . . . .
124
813 38LS Personalization-Nonswitched Network with
Manual Answer SNBU-United States and Canada. . . .
127
815 38LS Personalization-Switched Network-United
States and Canada. . . . . . . . . . . . . . . . . . . . . . .
1 28
817 38LS Personalization-Nonswitched Network with Auto
Answer SNBU-United States and Canada . . . . . . . . . . . . 129
819 38LS Personalization-Nonswitched Network-
World Trade Countries (Except Canada) . . . . . . . . . . . . . 130
821 38LS Personalization-Switched Network-
World Trade Countries (Except Canada) . . . . . . . . . . . . . 131
823 EIA/CCITT Card Jumpers (A-D7) . . . . . . . . . . . . . . . 132
825 DDSA (A-D7) . . . . . . . . . . . . . . . . . . . . . . .
133
827 Line Plate Jumpers: World Trade Countries
(Except Canada) . . . . . . . . . . . . . . . . . . . . . . .
134
831 Procedures for Using TRAP to Record Data . . . . . . . . . 136
833 EIA/CCITT Interface Testers. . . . . . . . . . . . . . .
141
835 PT-2 and TP Line Monitor . . . . . . . . . . . . . . . - . . . . 141
COMMUNICATIONS CABLE DIAGRAMS
861 EIA/CCITT Cable Diagram . . . . . . . . . . . . . . . . . . . 144
863 DDSA Cable Diagram. . . . . . . . . . . . . . . . . . . . . . 146
865 38LS-Nonswitched-Cable Diagram . . . . . . . . . . . . . 148
867 38LS-Switched or SNBU-Cable Diagram . . . . . . . . . . 150
869 38 LS-With WT Line Plate-Switched Network Cable
Diagram . . . . . . . . . . . . . . . . . . . . . . . .
152
COMMUNICATIONS CABLE CONNECTIONS
871 Communications External Cables
154
DIAGNOSTIC AIDS
901 Cable Diagram Description . . . . . . . . . . . . . . . . . . . 155
Direct Feed-Through Circuit. . . . . . . . . . . . . . . . . . . 156
Inverting Driver/Receiver Circuit . . . . . . . . . . . . . . . . 156
Non-Inverting Driver/Receiver Circuit. . . . . . . .
157
903 Resistor Terminator/Load . . . . . . . . . • . . . . . . . . . 158
Resistor as Terminator . . . . . . . . . . . . . . . . . . . . . . 158
Resistor as Load. . . . . . . . . . . . . . . . . . . . .
158
904 Multimeter/dB Adapter. . . . . . . . . . . . . . . . . . . . . 159
905 General Logic Probe. . . . . . . . . .. . . . . . . . . . . . . 161
911 Electrostatic Discharge Service Aids. . . . . . . . . . . • . . 162
921 Absolute Dump Procedure . . .
. . . . . . . 165
925 Parity Check Display Examples . . . . . . . . . . . . . . . . 166
vi
931 Power-On Checkout and IPL. . . . . . . . . . . . . . • . . • 170
Condition Code Table for Power-On Checkout and IPL
Failures . . . . . . . . . . . . . . . . . . . . • • . . . . . . . • 174
Diagnostic Diskette 1. . . . . . . . . . . . . . . . . . . . . . • 177
Diagnostic Diskette 2. . . . . . . . . . . . . . . . . . • . . . . 178
Diagnostic Diskette 3. . . . . . . . . . . . . . . . . . . . . . . 178
941 IPL Using Diagnostic Diskette 1 . . • . . . . . . . . . . . . . 179
Diagnostic Loader Program . . . . . . . . . • . . . . . • . . • 179
951 Diagnostic Control Program (DCP) . . • . . . . . . . • . . . 183
How to Load the Diagnostic Control Program . . • . . • . . . 183
How to Interpret the DCP Display . . . . . • . . . . . . . . . 184
How to Control DCP During MDls . . . • . . . . . . . . . . . 185
How to Interpret DCP Error Messages . • . . . . • . . . . • • 186
961 MAP Diagnostic Integration (MOl) Tests . . . . . • . . • . . 187
Description of MOl Tests . . . . . . . . . . . . . . . . . . . . 188
963 Diskette Media Problems . . . . . . • . . . • . . . . . . . . . 190
965 Head Resolution Service Aid . . . . . . . . . . . • . . . . . . 191
971 Standalone Program Loading. . . . . . . . . . . . . . . . . . 192
975 Standalone Programs . . . . . . • . . . . . • . . . . . . . . . 193
System Exerciser Test (SYSTEST) . . . . . . . . . . . . • . . 193
Keyboard Scan Code Test (SCANTEST). . . . . . . . . . . . 193
Magnetic Stripe Reader Test (MSRTEST) . . . . • . . . . . . 193
Display Exerciser Test (CRTTEST). . • . . . • . . • . . • • . 193
Elapsed Time Counter Test (TMRTEST1). . . . . • . • . . . 193
Elapsed Time Counter Test (TMRTEST2) . . . . . . . . . . . 193
Printer Test (TPRNT) . . . . . . . . . . . . . . . . . . . . • . 193
System Error Log Recovery Program (TSYSEREP) . . . . . 194
Diskette Surface Analysis Program (TMEDIA) . . . . . . . . 196
Communications Error Log and Data Trap Recovery
Program (TCOMEREPL . . . . . . . . . . . . • . . . • • . . 198
BSC Online Test Program (SYSBOL T) . . . . . . . . • . . • . 203
BSC Online Tests Supported by the IBM 5280 . . . . . • • . 210
SDLC Link Test . . . . . . . . . . . . . . . . . . . . . . . . . . 211
Error Recording Tables . . . . . . . . . . . . . . . . • . • . . . 212
991 Display/Alter Function . . . . . . . • . . . . . . . . • . . . . 214
Printer Soft Error Recording Table . . . . . . . • . . . . • . . 222
993 Communications Error Tables . . . . . . . . . . . . . . . . . 223
Using the Display/Alter Function to Display the
Communications Error Tables . . . . . . . . . . . . . . . . . 224
CCB Status Bytes and Counters . • . . . . . . . . . . . . • . . 226
CCB Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . 232
BSC Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . 232
MRJE Error Codes . . . . . . . . . . . . . . . . • . . . . . . . 234
SO LC Error Codes . . . . .
. . . • . . . . . . . . • . • 235
Modem Control Error Codes . . . . . . . . . • . . . • . • . . . 236
TOOLS AND TEST EQUIPMENT
TOOLS AND TEST EQUIPMENT . . . . . . . • . . . • . . • . . 237
THEORY
INTRODUCTION.
. . . . . . . . . . . . . . . . . . . . • 239
Data Stations . . . . . . . . . . . . . . . . . . . . . . . . . • . . • 239
IBM 5281 ., . . . . . . . . . . . . . . . . . . . . . . • . . . • 239
IBM 5282 . . . . . . . . . . . . . . . . . . . . . . . . . . . . • 239
Programmable Units
. . . . . . . . . . . . . . . . . . . . . . . • 240
IBM 5285
. . . . . . . • . . . . . . • • . . . . • . . • 240
IBM 5286
. . . . . . . . . • . . . . . . . . . . . . . . 241
IBM 5288
. . . . . . . . . • • • • • . • • . . . . . . • 242

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