Mitel SX-200 DIGITAL Pabx Engineering Information Manual

Troubleshooting 
PSX E&M 
TRUNK CIRCUIT CROS;;ECPDNNECT TRANSMISSION/SIGNALLlNG 
EQUIPMENT 
1 1 
1 I 
I 0 
- 
NOTE: X = NORMALLY OPEN 
9 = NORMALLY CLOSED 
BUTT-SET 
KAOlOZRlEl 
Figure 3-l E&M Trunk Testing 
Page 3-26  

Troubleshooting 
PBX DID/TIE 
TRUNK CIRCUIT 
1 1 
CROSS-CONNECT 
FIELD 
TIP 
RING 
:I 
TO 
CENTRqL 
OFFICE 
VOLTMETER 
KAOlOlROE 
Figure 3-2 DID/Loop/Tie Trunk Testing 
Page 3-27  

Troubleshooting 
C. Other Peripheral Cards 
Universal Card 
3.08 The Universal card provides a general interface for SX-200@ 
Digital modules. The modules are: the E&M Trunk module, the 
DTMF Receiver module, the Console Interface module, and the Music 
On Hold (MOH) module. The Universal card plugs into any high power 
(upper) slot of any digital bay of the PABX. Chart 3-7 shows the steps 
involved in the troubleshooting of this card type. 
Further information on the Universal card may be found in...

P 
Troubleshooting 
CHART 3-7 
UNIVERSAL CARD TROUBLESHOOTING PROCEDURES 
tep Action Description / Follow-up Remarks 
1 Identify the affected Universal card. l Go to step 2. 
2 Check maintenance log for indications of problems Yes: l Refer to the troubleshooting procedures 
with modules, or the Attendant console. Any such for the appropriate device. 
indications? No : * Go to step 3. 
3 Check which module types are installed on the 8 Go to step 4. 
card; use the SHOW CONFIG command. 
4 Check cabling to...

Troubleshooting 
DTMF Receiver ModJle (9109-016) 
3.09 The DTMF Receiver module is installed on the Universal card in 
the digital bays of the SX-ZOO@ DIGITAL PABX system. The 
module provides four DTMF Receiver circuits. Also provided are two 
relay circuits. The troubleshooting procedures for DTMF Receivers are 
provided in Chart 3-8. Further information concerning the characteris- 
tics, parameters and operation of the moduleis contained in Section 
MITLS 108-093-l 2%NA. 
Page 3-30  

CHART 3-8 
DTMF RECEIVER MODULE TROUBLESHOOTING PROCEDURES 
‘tep Action Description I Follow-up Remarks 
1 Check the status of the suspect circuit. l Use the SHOW STATUS command, and see Note 
check for abnormal conditions. 1 
2 Check if problem is with DTMF circuit or a relay DTMF: l Go to step 3. 
circuit. Relay: l Go to step 17. 
l If unknown, go to step 3. 
3 Perform a directed test on the suspect circuit(s). l First busy out the receiver, then use 
the TEST command. If possible, avoid 
busying a...

Troubleshooting 
CHART 3-8 (Cont’d) 
DTMF RECEIVER MODULE TROUBLESHOOTING PROCEDURES 
tep Action Description / Follow-up Remarks 
11 Replace suspect DTMF Receiver module and test. Pass: l Problem fixed. 
Fail: Q Go to step 12. 
12 Test the signal processor; use the TEST DEVICE 
TYPE DSP command. Pass: o Go to step 13. 
Fail: * Problem with Signal Processor; go to 
step 22. 
13 Replace Universal card and retest. Pass: * Problem fixed. 
Fail: e Possible problem with Main Control card. 
* Go to step 22. 
14...

Troubleshooting 
CHART 3-8 (Cdnt’d) 
DTMF RECEIVER MODULE TROUBLESHOOTING PROCEDURES 
I I 
Step Action Description I Follow-up Remarks 
21 From any station, dial the access code for the 
external equipment (i.e., the Night Bell access 
code). 
l If the meter reads a short circuit, the 
relay is functioning properly; if not, 
replace the suspect module. 
l If problem persists, possible Main Control 
problem - go to step 22. 
r 
T STEP 22 SHOULD BE DONE DURING PERIODS OF LOW OR NO TRAFFIC, AS IT WILL HAVE...

Troubleshooting 
Console interface Module 
3.10 The Console interface module is installed on the Universal card 
in the digital bays of the SX-200’ DIGITAL PABX system. The 
module provides an interface to the system for the Attendant Console. 
For Console Module troubleshooting procedures refer to the part on 
the Attendant Console. 
Further information on the Console Interface module may be found in 
Section MITL9108-093-200-NA, Shipping, Receiving and Installation. 
Music On Hold (MOH) / Pager Module...

Troubleshooting 
;tep 
1 Check the status of the suspect circuit 
2 Check maintenance log for indications of problems 
with other modules, or the Universal card. Any 
such indications? 
3 Check if problem is with Music On Hold or Pager. 
4 Disconnect the music source from the MOH 
module at the MDF. 
5 Connect butt-set to music source pair at the MDF 
and go off-hook. Is music heard? 
6 Reconnect music source to MOH at the MDF. 
7 
8 
9 
10 
11 
12 Access MOH from any station (put on hold) - is (es: *...