Mitel Sx 200 Ml Pabx Lightware 16 Instructions Guide

The Maintenance Manager 
device identification 
device status 
background diagnostics on / off 
power up diagnostics on / off 
number of background tests pending 
number of system tests pending 
number of power up tests pending 
number of fault isolation tests pending 
number of power up diagnostic retries 
number of fault diagnostic retries 
number of user specified diagnostic retries 
number of requests for this card  DEV PLID bay / slot / circuit / subcircuit 
CARDTYPE type of card 
CARDSTAT status of...

General Maintenance Information 
4-6 Issue 1 Revision 0 March 1997  

5 Diagnostic Tests 
General 
5.1 For each physical device in the SX-200 ML PABX there is a special set of diagnostic 
tests specifically designed to test the device as thoroughly as possible. If faults are 
detected, broader ranges of tests may be run in an attempt to isolate the fault to the 
board level, and to ensure that isolated faults are not merely side effects of other 
problems. 
Diagnostics are divided into four different functional groups to facilitate the different 
characteristics of the...

General Maintenance information 
Table 5-2 Diagnostic Coverage 
Device Type 
I Power-up Background Directed 
I 
PROM 
ONS Line (digital) 
w 
COV Line (digital) 
w 
OPS Line (digital) 
LS/GS Trunk (digital) 
DID Trunk (digital) yes 
w 
w 
E&M Trunk Module (digital) 
Digital Line Card (DNIC) 
yes yes 9s 
DTMF Receiver Module 
ws w yes 
Music-on-Hold /Paging Module (cannot be tested, because the device is always busy) 
System Printer n/a nla 
Main Control Card II 
Digital Signal Processor (DSP) 
Bay Control...

Diagnostic Tests 
Peripheral Device Tests 
’ 5.4 There is a unique sequence of tests specifically designed for each type of peripheral 
device in the system. These test sequences include device-specific tests and 
common tests. The test sequences are described in Table 5-3 through Table 5-14. 
The actual tests are described in the following paragraphs. Refer to the Engineering 
hforrnat~on Practice for information on peripheral circuit hardware. 
AC CODEC loopback test: This test verifies the CODEC...

General Maintenance Information 
DC CODEC test: This test verifies the operation of the PCM paths from the DX Matrix 
to the CODEC on the peripheral card and back again. It also verifies the integrity of a 
tone transmitted from the Main Control Card’s digital signal processor (DSP) along 
these paths. If the test fails, it is not possible for the system to isolate the fault com- 
pletely. 
Digital bay type test: Used to decide which set of diagnostics to run. If this routine 
returns a pass, digital bay...

Diagnostic Tests 
Test DNIC output: This test is used to loop the data internally at DNIC output. Failure 
of this test will isolate the fault to the particular DNIC chip under test on the card. 
Tone detection test: This test generates a test tone of 440 Hz, and loops it back to 
the digital signal processor. The energy level of the tone must fall in a particular range 
to pass this test. Failure of the test indicates a faulty device. 
Tone generation test: This test collects two consecutive samples...

General Maintenance Information 
Table 5-5 CO Trunk Card initialization 
Diagnostic State Test Name Circuit State If Test 
Passes Circuit State If Test Fails 
State 1 
State 2 digital bay test 
adc reference test state 2 
state 3 state 10 
device failure unisolated 
I State 3 1 digital CODEC test 1 state 4 1 device failure unisolated 1 
I 
State 4 digital CODEC state 5 device failure isolated 
loopback test 
I 
State 5 
State 6 analog CODEC 
loopback test 
hybrid loopback test state 6 
device passed...

Diagnostic Tests 
Table 5-6 DID Trunk Card Initialization 
Diagnostic 
State 
State 1 
State 2 
State 3 
State 4 Test Name Circuit State if Test 
Passes Circuit State if Test Fails 
acfc reference test state 2 device failure unisolated 
digital CODEC test state 3 device failure unisoiated 
digital CODEC state 4 device failure isolated 
loopback test 
analog CODEC device passed device failure isolated 
loopback test 
Table 5-7 Receiver Module Initialization 
Diagnostic 
State 
State 1 
State 2 
State 3...

General Maintenance information 
Table 5-9 COV Card initialization 
Circuit State if Test 
Circuit State if Test Fails 
Circuit State if Test 
Circuit State if Test Fails 
Table 5-11 DID Card Initialization 
Circuit State if Test Fails 
5-8 Issue 1 Revision 0 March 1997