Mitel Sx 50 Dpabx Instructions Guide

The information contained in this document is believed to be accurate in all 
respects but is not warranted by Mite1 Corporation (MITEL@). The informa- 
tion is subject to change without notice and should not be construed in any 
way as a commitment by Mite1 or any of its affiliates or subsidiaries. Mite1 
and its affiliates and subsidiaries assume no responsibility for any errors or 
omissions in this document. Revisions of this document or new editions of it 
may be issued to incorporate such changes....

Reason for Reissue . . . . . . . . . . . . . . ....................................... 350 l-l 
Basic Troubleshooting Philosophy . . . ....................................... 350 l-l 
Control Card Nomenclature . . . . . . . . ....................................... 350 1-1 
Line Status LEDs ......................... 
Card Status LEDs ........................ 
Control Card 7-Segment Display ............ 
Console STATUS Key ..................... 
Alarm Indicators .......................... 
Alarm LED on...

Troubleshooting Procedures and General Maintenance Information 
Busy-out DTMF Generator (*42) 
........................................ 350 5-1 
Busy-out DTMF Receiver (*43) 
......................................... 350 5-2 
Busy-outTrunk(*41) .................................................. 
350 5-2 
DataDump(*97) ..................................................... 
350 5-2 
Data Load (“98) ...................................................... 
350 5-2 
LampTest(“16)...

Table of Contents 
Table 4-7 Peripheral Equipment Troubleshooting ............................ 
350 4-8 
Table 5-1 Maintenance-Related Attendant Functions ......................... 350 5-3 
Table 5-2 Maintenance Equipment Status Display Functions ................... 350 5-4 
Table 5-3 Call Processing State and Substate Codes ......................... 
350 5-16 
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Troubleshooting Procedures and General Maintenance Information 
vi 
Revision 0 9104-091-350-NA Issue 5  

This Section contains information to assist troubleshooting of the SX-508 DPABX 
(Digital Private Automatic Branch Exchange). The SX-50 system is itself the most 
important tool in the troubleshooting process. It contains an array of diagnostic tests 
and equipment status displays to assist maintenance personnel. 
1.1 This section has been reissued to incorporate MS55 software. 
1.2 This Section uses the following approach to determining the cause of a malfunction: 
* ACQUIRE relevant information (i.e.,...

Troubleshooting Procedures and General Maintenance Information 
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350 l-2 Revision 0  

,’ 
2.1 Each line or trunk circuit has an associated red status LED on the front face of the 
circuit card. The SX-50 cover must be removed to see these displays. See Table l-1 
and Figure 2-i. 
2.2 Each card has a green status LED on its front face located just above the red circuit 
status LEDs. The SX-50 cover must be removed to see these displays. See 
Table 2-2 and Figure 2-1. 
ON - steady Card recognized Diagnostic tests passed 
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Issue5 Revision 0 350 2-l  

Troubleshooting Procedures and General Maintenance information 
2.3 The Control Card has a red 7-segment display near the lower ri 
Figure 2-2 and Figure 2-3. The display normally shows a flashing 
cover must be removed to see this display. See Figure 2-1. edge. See 
The SX-50 
DO0037 
2.4 The Console STATUS key provides the following functions on successive 
keypresses: 
* Software identity - name and maintenance release number. 
0 Engineering Control Information. 
350 2-2 
Revision 0 
9104-091-350~NA...

Status and Alarm Indicators 
* Configuration - the number of LS/GS Trunks, E&M Trunks and Extensions con- 
nected to the system, but not necessarily programmed. See Table 2-3. 
* Busy-outs for different equipment types 
(See Table 2-4). 
0 Bell volume and LCD contrast adjustment, LED test. 
0 LCD Display test. 
CO: 16 EM: 00 EXT 024 
Number of Extensions 
BUSY OUTS 00 00 00 00 00 TOTAL 00 
DTMF Generator 
DTMF Receivers 
Dial Tone Detectors 
Conference Channels 
Trunks 1 
2.5 There are three alarm...