Mitel Sx 200 Ml Pabx Lightware 16 Instructions Guide

							Subsystem Troubleshooting Procedures 
, Table 4-3 Bay Control Card Status LEDs 
TX LED RX LED 
on on ALARM LED Meaning 
on Bay Control Card is either waiting for, or has 
lost communication with the Main Control 
Card Il. If this state persists for more than a 
few seconds, there is no communication. 
flashing flashing on Bay Control Card is being downloaded by the 
Main Control Card Il. 
off/flashing off/flashing off 
flashing Bay Control Card is up and running and 
communicating to the Main Control Card Il. 
There is a failure on the Bay Control Card. 
Power Subsystem 
4.3 The SX-200 ML PABX power subsystem consists of one Bay Power Supply. The 
uninterruptible power supply (UPS) is optional, and is user-supplied. Table 4-4 
outlines the required Bay Power Supply voltages. 
FUSES 
2.OA RINGING VOLTAGE FOR ONS/OPS TELEPHONE SETS 
0.5A DC VOLTAGE FOR COV AND DNIC TELEPHONE SETS 
 3 
CC0104 
Figure 4-3 Bay Power Supply and Fuse Locations 
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							TroubleshooGng 
Table 4-4 Bay Power Supply Test Point Voltages 
Voltage Minimum 
+ 5 Vdc + 5.07 
Maximum 
+ 5.23 
+ 12 Vdc 
I + 10.8 
I -I- 13.2 
I 
- 12Vdc - 13.2 - 10.8 
- 5 Vdc - 5.5 - 4.5 
- 28 Vdc - 30.8 - 23.8 
-48 Vdc 
I - 53.76 I - 40.8 I 
90 Vat 
I 63.0 
I 99 .o 
Uninterruptible Power Supply (UPS) 
Any UPS may be used with the PABX, provided that it meets the requirements specified 
in the Engineering /~I~~I-LTEIGOII Practice. Since these are available from a number of 
suppliers, no troubleshooting procedures for the UPS are provided in this document. 
Reference should be made to the appropriate manual provided by the manufacturer 
of the UPS for any self-diagnostic capabilities. 
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							5 Miscellaneous 
Troubleshooting 
Procedures 
Maintenance Terminal 
5.1 The device used as a maintenance terminal must satisfy the following: 
l compatibility with RS-232C type interface protocol 
l 80 columns 
l compatibility with ANSI X3.64-l 977 special character set for special graphics. 
These procedures deal with the interface only. Reference should be made to the 
appropriate manual provided by the manufacturer of the terminal for any problems with 
the terminal itself. The following table outlines the most likely items to cause 
malfunction. 
Table 5-l Maintenance Terminal Troubleshooting Procedures 
Step Possible Malfunction Source 
1. Keyboard locked - reset terminal.. 
2. Blown terminal fuse (if applicable). 
3. Inconsistent communication parameters between terminal and port; default values 
are: 
l 8 data bits 
l 1 stop bit 
l no parity 
l ASCII character set 
l Xon/Xoff flow control. 
4. Terminal in LOCAL mode - put into ON LINE mode - see manufacturer’s instructions. 
5. Terminal requires reset (or X-ON, or CONTROL-S - see manufacturer’s instruc- 
tions). 
6. Faulty connection between the terminal and its power source. 
7. Faulty terminal. 
8. Main Control requires reload 
- press RfSETon the Main Control Card II front panel. 
9. Faulty Main Control Card Il. 
10. Faulty interface between rear panel and MCC Il. 
Il. A terminal is already logged into the CDE or maintenance application at another lo- 
cation). 
12 Power up and power down Bay Power Supply. 
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							Troubleshootin 
Note: 1. Refer to the RS-232 Maintenance Terminal Practice, for details on setting communication 
parameters. 
2. The system does not have a maintenance panel. The maintenance port is accessed at the 
rear of the cabinet. 
3. To connect the terminal’s 25 pin RS232 connector to the system’s 9 pin mini D connector 
requires the use of a 9 pin to 25 pin RS232 adapter. This is a standard off-the-shelf part found 
in most computer supply stores. 
System Printers 
5.2 System printers must satisfy the following: 
1. Compatibility with RS232C type interface protocol (and suppor? pins 2, 3, 4, 5 
and 7). 
2* Width of 80 columns. 
Printers can be installed with the SX-200 ML PABX in different configurations: 
I. Connected to the Cabinet’s 9 pin PRINTER port. 
2. Connected to the SU/?!Z/ZO/VSOUZ 7000 console port. 
3. Connected to the A&UA/Kmodule. 
Cabinet Printer Port 
These procedures deal with the interface only. Reference should be made to the 
appropriate manual provided by the manufacturer of the printer for any problems with 
the printer itself. The following table outlines the most likely items to cause malfunction. 
Table 5-2 Cabinet Printer Port Troubleshooting Procedures 
Step Possible Malfunction Source 
1. Blown printer fuse (if applicable). 
2. Inconsistent communication parameters between printer and port; PABX default values are: 
l 8 data bits 
l 1 stop bit 
l no parity 
l ASCII character set 
l Xon/Xoff flow control 
l 1200 baud (baud setting may be adjusted in Maintenance from 300 to 9600 baud). 
3. Faulty connection between the printer and its power source. 
4. Faulty CDE programming; likely form: Directed l/O. 
5. Faulty connection between the printer’s communication port and the Cabinet printer port. 
6. Printer in LOCAL mode - put into ON LINE mode - see manufacturer’s instructions. 
7. Printer requires reset (or X-ON, or CONTROL-Q). 
Page I of 2 
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							Miscellaneous Troubleshooting Procedures 
Table 5-2 Cabinet Printer Port Troubleshooting Procedures (continued) 
Step Possible Malfunction Source 
6. Faulty printer. 
9. Main Control requires reload - press RESETon the Main Control Card II front panel. 
10. Faulty Main Control Card Il. 
11. Faulty interface between rear panel and MCC Il. 
Page 2 of 2 
Note: 1. Useful maintenance commands: LOGS PRINT, SUSPEND-PRTR, RESUME PRTR, SHOW 
DEVICE, SET SPEED, TEST DEVICE-TYPE MORE-KEYS PRINTER-PLID / PORT - see 
the 
RS-232 Maintenance Terminal Practice. 
2. To connect the printer’s 25 pin RS232 connector to the system’s 9 pin mini D connector 
(see ) requires the use of a 9 pin to 25 pin RS232 adapter. This is a standard off-the-shelf 
part found in most computer supply stores. 
SUPERCONSCXE 1000 Printer Port 
These procedures deal with the intetface only. Reference should be made to the 
appropriate manual provided by the manufacturer of the printer for any problems with 
the printer itself. The following table outlines the most likely items to cause malfunction. 
Table 5-3 SUPERCONSOLE 1000 Printer Port Troubleshooting Procedures 
Step Possible Malfunction Source 
1. Blown printer fuse (if applicable). 
2. Inconsistent communication parameters (both the SUPERCONSOLE 100U printer port ant 
the printer should have exactly the same parameters. NOTE: 2400 is the maximum bauc 
rate for this port). 
3. Faulty connection between the printer and its power source. 
4. Faulty connection betwe,en the printer’s communication port and the 
SUPERCONSOLE 1000 port. 
5. Faulty CDE programming; likely forms: 
l Directed IO 
l Console Assignment 
l Data Circuit Descriptor 
l Data Assignment 
l COS Define 
l System Configuration. 
6. Printer in LOCAL mode - put into ON LINE mode - see manufacturer’s instructions. 
Page 1 of 2 
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							Troubleshooting 
Table 5-3 SUPERCONSOLE I&IO Printer Port Troubleshooting Procedures (continued) 
Step Possible Malfunction Source 
7. Printer requires reset (or X-ON, or CONTROL-Q if applicable - see manufacturer’s instruc- 
tions). 
8. Faulty printer. 
9. Suspect SUPERCONSOLE 7000 unit - refer to that procedure. 
10. Reset console or reseat Digital Line Card. 
Page 2 of 2 
Note: Useful maintenance commands: 
LOGS PRINT, SUSPEND-PRTR, RESUME PRTR, SHOW 
DEVICE, SET SPEED, TEST DEVICE-TYPE MORE-KEYS PRINTER-PLID / PORT - see the 
RS-232 Maintenance Terminal 
Practice. 
System Fail Transfer 
5.3 Note that these procedures are intended to deal with failure of the SFT system, not 
the activation of it. 
A System Fail Transfer connector (an RJll modular jack) is located on the backplane. 
This connector is used to interface SFT equipment provided by external suppliers. 
Table 5-4 System Fail Transfer Connector Troubleshooting Procedures 
Step Possible Malfunction Source 
1. External SFT equipment’s bypass switch set incorrectly; refer to manufacturer’s instructions 
for external SFT unit. 
2. Faulty SFT connections - refer to manufacturer’s instructions for external SFT unit. 
3. Faulty connections between the MCC II and the system’s SFT connector assembly - see 
Table 5-5. 
4. Faulty connections between the SFT connector and external SFT unit. 
5. Faulty connections at the cross-connect field - refer to manufacturer’s instructions for exter- 
nal SFT unit. 
6. Faulty external SFT unit. 
7. Faulty power system - refer to Power Subsystem Troubleshooting procedure (if the -48 voll 
supply is not working). 
Note: Relay contact is open during normal system operation. It is closed to indicate SFT. 
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							Miscellaneous Troubleshoofng Procedures 
Table 5-5 System Fail Transfer (SFT) Connector Pin-Outs 
Pin No. Wire Color Signal Comment 
2 Yellow 
-48 Voltage source for the external SFT transfer equipment. 
Note, this is limited to 250 mA. 
3 Green -48 return Ground reference (return) for the external SFT transfer 
WW equipment 
4 Red SFT Relay First side of “nornally closed” SFT control relay 
W 
5 Black SFT Relay Second side of “normally closed” SFT control relay 
return (B) 
Recorded Announcement Devices (RADs) 
5.4 Reference should be made to the appropriate manual provided by the manufacturer 
of the RAD unit for any problems with the RAD unit itself. The following table outlines 
the most likely items to cause RAD malfunction. 
Step 
1. 
2. 
3. 
4. 
5. 
6. 
7. Table 5-6 RAD Troubleshooting Procedures 
Possible Malfunction Source 
Faulty RAD. (See Note 2.) 
Faulty connection between the RAD and the cross-connect field. 
Faulty connection between the cross-connect field and the system. 
Faulty CDE programming; likely forms: (See Note 3.) 
l COS Define 
l Hunt Groups 
l Station/SWE/?S,9Telephones 
l System Configuration. 
Faulty ONS port. 
Check items listed in Table 5-7. 
Faulty peripheral switch or circuit switch - refer to ‘Supplementary Peripheral Equipment 
Procedures’. 
Note: 1. Useful maintenance commands: SHOW STATUS, SHOW DEVICE, TEST DEVICE-TYPE 
ONS, SHOW STATUS SWID SW-HUNT-GRP  CP-DWA (check stagger and 
o-msglen), TRAFFIC-MEAS READ (check hunt group busy peg) - see the RS-232 
Maintenance Terminal 
Practice. 
2. Refer to the manufacturer’s instructions to repair and troubleshoot a RAD unit. For cassette 
type units, tape wearout or ditty heads/dirty tape/ ditty capstan are the most common failures. 
3. Avoid using discriminating ringing in the RAD COS; some operate only with standard ringing. 
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							Troubleshooting 
Table 5-7 Supplementary RAD Troubleshooting Procedures 
Problem Possible Cause(s) 
No recordings at all. 
RAD message is cut off. 
RADs are in busy-out or DND status - use SHOW STATUS com- 
mand on the corresponding ONS circuit. 
Check that the Message 
Length Timer in the Hunt Groups CDE form 
is long enough. 
RADs go into DND state. Check if Failure To Hang Up Timer (COS 404) is long enough for 
proper RAD clear down. 
No message heard, but RAD Check that the Message Length Timer in the Hunt Groups CDE form 
rings and answers. is long enough. 
Note: For further information, refer to the Features Description Practice, “RACI Support”. 
Night Bell Equipment 
5.5 Night Bells are connected in 2 basic configurations: 
Direct Connect Method: Night bells can be connected directly if the total current 
requirement does not exceed the relay contact ratings (see Figure 5-l). 
Auxiliary Relay Method: Night bells must be connected through an auxiliary relay if 
the total current requirement exceeds the relay contact ratings (see Figure 5-2). 
The DTMF Receiver / Relay module is installed on the Universal Card; it can be used 
as a night bell relay (2 circuits) - see the Engineering /~Vorn?atiorr Practice for further 
information. Table 5-8 outline the most likely causes of night bell failure. 
Step 
1. 
2. 
3. 
4. 
5. 
6. 
7. 
%. 
9. Table 5-8 Night Bell Troubleshooting Procedures 
Possible Malfunction Source 
Faulty night bell device. Faulty external relay (auxiliary relay configuration only). 
Faulty external relay connections (see Note 2). 
Faulty connection between the night bell device and the cross-connect field. 
Faulty connection between the cross-connect field and the system. 
Faulty CDE programming; likely forms: 
l System Configuration 
l Miscellaneous System Ports 
l Call Rerouting Table. 
Faulty or improperly installed DTMF Receiver module on Universal Card. 
Faulty Universal Card. 
Faulty Universal Card modules (see Note 3). 
Page 1 of 2 
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							Miscellaneous Troubleshooting Procedures 
Table 5-8 Night Bell Troubleshooting Procedures (continued) 
Step Possible Malfunction Source 
10. Faulty backplane cable connections between Bay Controller and Main Controller (672 port 
systems only). 
11. Faulty peripheral switch or circuit switch - refer to Supplementary Peripheral Equipment 
Procedures’. 
Page 2 of 2 
Note: 
1. Useful maintenance commands: SHOW STATUS, TEST, SHOW ALARMS, SHOW ERRORS 
- see the KS-232 Maintenance Commands Practice. 
2. Refer to the hstalation hformation Practice, for details on the installation of night bells using 
an auxiliary relay. 
3. Receiver/ relay module malfunction could be caused by the failure of other module(s) on the 
Universal Card. 
4. A simple test for a relay circuit is: (a) disconnect the relay from external equipment at the 
MDF; (b) connect ohmmeter across relay leads - an open circuit should be read. If not, there 
is a problem with the module. 
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							Troubleshooting 
v 
ATTENDANT CONSOLE 
-=- MUSIC 
SOURCE 
-#I ozs - DC POA 
400HMS POB * PA SYSTEM 
w 
Ki CONTROL PAIR 
300 OHMS 
CUSTOMER SUPPLIED EQUIPMENT 
MUSIC ON HOLD/PAGING MODULE 
EACH NO RELAY CONTACT  c 
MAY BE USED TO CONTROL 
A DEVICE, AS REQUIRED. 
SUBCIRCUIT 6 
RELAY MODULE 
- 
NOTE 1: ALL WIRING MUST BE DONE IN ACCORDANCE WITH THE NATIONAL NOTE 5: THE SfJfERCOi’lSOLE 7OOOATTENDANT 
ELECTRICAL CODE (USA) OR CANADIAN ELECTRICAL CODE AND/OR CONSOLE MAY CONNECT TO ANY PORT ON A 
LOCAL ELECTRICAL INSPECTION AUTHORITIES. DIGITAL LINE CARD. 
THE DIGITAL LINE CARD MUST BE IN A HIGH 
NOTE 2: CROSS-CONNECT FIELD PIN NUMBERS FOR EACH MODULE DEPEND 
UPON THE POSITION OF THE UNIVERSAL CARD AND MODULE. POWER SLOT. 
NOTE 3: RELAY CONTACTS MAY BE CONNECTED ONLY TO A SECONDARY 
CIRCUIT THAT HAS NO DIRECT CONNECTION TO A PRIMARY CIRCUIT, 
AND RECEIVES ITS POWER FROM A TRANSFORMER, CONVERTER, OR 
EQUIVALENT ISOLATION DEVICE SITUATED WITHIN THE EQUIPMENT. 
NOTE 4: RELAY CONTACT RATINGS: 90 V RMS AT 0.1 A 
CC0566 46VDCATO.5A 
Figure 5-l Music, Paging, Relay and Console Connections 
5-8 issue 1 Revision 0 March 1997