Introduction to DBS 576 Programming Section 400-ProgrammingIntro-8 l DBS 576 (USA) issued 05/20/98 576-13-400FF1SystemFF2TrunksFF3ExtensionsFF4FF-/Soft KeysFF5GroupsFF6TRS/ARS0 SystemConfigurationFF7ApplicationsFF8MaintenanceIntroductionAppendix AAppendix BFF1SystemFF2TrunksFF3ExtensionsFF4FF-/Soft KeysFF5GroupsFF6TRS/ARS0 SystemConfigurationFF7ApplicationsFF8MaintenanceIntroductionAppendix AAppendix BSystem CPC ModesThe DBS 576 offers several system CPC modes,which are automatically entered upon systemstartup (depending on current configuration’sneeds). These CPC modes provide a way toperform functions such as the following:r normal system operationr clearing of data at startupr automatic or manual reading of system sizer diagnosing memoryr diagnosing LSICodes 0-3: Switch Operation ModeThe Switch Operation Mode executes normalsystem switching operation on the basis ofstored (programmed) data.To enter Switch Operation Mode:1. Make sure the RAM HOLD switch is ON.2. Set the CODE rotary switch to either 0, 1, 2,or 3.3. Press RESET or power-on the system.4. As the system starts up, the MJ (Major) thenthe MN (Minor) LEDs light. When the startup sequence is complete and the CPCcard is in normal operation mode, the RUN LEDs blink.Code 4: System Diagnostic Mode 1 - MemoryCAUTION: This procedure interrupts call processing. Make certain to perform this test when it hasthe least impact on the system.This procedure analyzes the memory on the CPC card.1. Set the CODE rotary switch to 4 and the RAM HOLD switch to OFF.2. Press and hold RESET.3. When the MJ LED lights, release RESET and change the CODE rotary switch asfollows:• 2 (D-RAM status information test)RUN LED (FPU)RUN LED (MPU)MJ LEDMN LEDRESET buttonCODE rotary switchMODE buttonRAM HOLD switchMOH plug-in(front edge, facing out from cabinet)The CPC-576 Card
