Nortel Meridian Meridian 1 Implementation Manual page 146

Page 146 of 208
or manual busy (Man). The card goes through a series of tests. When
inserted into the slot or reset, the card:
•
•
•
•
This procedure takes approximately 45 seconds. If the card turns on
and remains on without blinking, the card is not functioning correctly.
The LED turns off when the card returns to service.
Self-test
Each MICB card automatically performs a self-test when inserted into
an operating system module, when it is powered up, or when the
system is reset. A self-test can be performed on a card using software
commands or menus.
The self-test checks general MICB functions and determines if they are
operating correctly. The checks are useful when first installing the
cards, because the card automatically starts the self-test when
inserted. The self-test provides an immediate indication of the card's
operating status by performing a detailed test and analysis of the
installed hardware. The test determines the integrity of the hardware
and establishes the connection of the MICB card.
Table 35 describes the items the system checks during the MICB
self-test.
Table 35
MICB self-test sequence (Part 1 of 2)
Item tested
Processor/Co-processor
DRAM
System I/O Controller
PCMCIA Controller
DS-30X Interface
On-board DSP card
553-3001-358 Standard 1.00
blinks three times during self-test
runs software files from the PCMCIA to the MICB card
blinks three more times
stays on until a return to service (RTS) occurs
Description
Reads and stores processor ID. Runs processor self-test.
Checks the amount of DRAM installed. Performs read/write test.
Performs read/write test on selected registers.
Performs read/write test on selected registers.
Tests shared memory and performs loopback test over SD-30 LCA.
Checks the presence of DSP cards and initiates diagnostic tests on DSP
cards, if present.
October 2003