Mitel Sx 200 Ml Pabx Lightware 16 Instructions Guide

							Field-Replacement Procedures 
Replace the Main Control Card II 
2.5 When you have completed Chart 2-4 
l The original Main Control Card II (MCC II) will be disconnected and removed. 
l The System ID module will be installed on the new MCC Il. 
l The new MCC II will be installed on the Bay Control Card (BCC). 
l The BCC will be installed. 
CAUTION: Turn off power before removing the Main Control Card Il. 
away from the main control card. Damage to components or 
circuit card tracks may result.  Remove conductive articles such as rings and watches before 
handling the Main Control Card Il. 
Do not use a screwdriver or any similar object to pry the 
Chart 2-4 Replace the MCC II 
Step Action Comments 
1. Follow 
general procedures for handling circuit 
Given in Chart 2-3. 
cards. 
2. Attach the antistatic wrist strap. 
3. Put the MCC II, component side down, onto the CAUTION: The card may bend as pres- 
bag on top of the PABX or any nearby firm surface. sure is applied to seat the connectors. 
Do not put it on a deformable surface. 
Inspect the MCC II 
4. Inspect the MCC Il. 
Install System ID Module 
5. Remove the MCC II / BCC pair from the cabinet The MCC II is attahed to the BCC and 
and separate the cards. Disconnect the MCC 
II the pair must be removed/installed to- 
ribbon cable when removing the MCC Il. 
gether. The interface panel ribbon cable 
connects to the MCC II and must be rout- 
ed under the faceplate. 
6. Remove the MCC II System ID module from the The plastic standoff mates with the Sys- 
original MCC II and install it on the new MCC Il. 
tern ID module. 
Install MCC II on BCC 
7. 
8. Mount the MCC II onto the BCC 
Connect the cable from the rear panel to Ensure the cable is folded under the low- 
connector J2 on the MCC Il. Refer to Figure 2-2 er right corner of the faceplate and that 
for cable routing. the cable is flat against the MCC II to pre- 
vent contact with an adjacent peripheral 
interface card. 
9. Slide the BCC and the attached MCC II into its slot. 
10. Seat the BCC into its connector. 
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							Field-Replaceable Units 
Figure 2-2 MCC II Ribbon Cable Routing 
Replace a Bay Control Card 
2.6 When you have completed Chart 2-5 
l The original Bay Control Card (BCC) will be disconnected and removed. 
. The new BCC will be unpacked and inspected. 
l The BCC will be installed. 
CAUTION: Turn off power before removing the Bay Control Card. 
I Chart 2-5 Replace a Bay Control Card 
Step Action Comments 
Follow General Procedures 
1. Follow the general procedures for handling circuit Given in Chae 2-3. 
cards. 
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							Field-Replacement Procedures 
Chart 2-5 Replace a Bay ConWol Card (continued) 
Step Action Cornmen& 
Remove Original BCC 
2. Attach the antistatic wrist strap and remove original The BCC and its slots are marked with a 
BCC and its attached MCC Il. Disconnect the MCC 
semicircle. 
Ii cable. 
Refer to MCC II replacement procedures 
for the MCC II that is attached to the BCC. 
Unpack and Inspect New BCC 
3. Wearing the antistatic wrist strap, unpack and Retain packaging for shipment of original 
inspect the BCC for damage. unit. 
Install New BCC 
4. Attach the MCC II to the BCC and slide the BCC The BCC and its slot is marked with a 
assembly into its slot. semicircle. Reconnect MCC II cable. 
5. Repack and return any damaged or incorrect items. 
Page 2 of 2 
Replace Bay Power Supply 
2.7 When you have completed Chart 2-6 
. The original Bay Power Supply (BPS) will be disconnected, and removed. 
l The new bay BPS will be unpacked and inspected. 
l The power cable will be plugged into the unit. 
Note: The BPS is an ac-to-dc convertor. The BPS faceplate is labeled “BAY PSU”. It has a ringing 
voltage generator used by the card slots it supports. 
CAUTION: Turn off power before removing the Bay Power Supply. 
Chart 2-6 Replace Bay Power Supply 
Step Action Comments 
Follow General Procedures 
1. Follow the general procedures for handling Given in Chart 2-3. 
circuit cards. 
Remove Original BPS 
2. Turn off the unit. 
3. Loosen the thumbscrew at the upper front of Remove the cover plate on the back of the 
the BPS to release it from the cardfile. node and unplug the internal AC power cord. 
To remove the cover plate, unscrew the 
screws and place them nearby. 
4. Remove the BPS from its slot. 
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							Field-Replaceable Units 
Chart 2-6 Replace Bay Power Supply (continued) 
Step Action Comments 
Unpack and Inspect New BPS 
5. Wearing the antistatic wrist strap, unpack Retain packaging for shipment of original 
and inspect the BPS. unit. 
6. Repack and return the original unit. 
Install New BPS 
7. Insert the BPS into its slot, and tighten the The BPS and its slot are each marked with a 
thumbscrew at the upper front of the BPS to right triangle. The slot is located in the upper 
secure it to the cardfile. left corner of each bay. See Figure 2-3. 
8. Make sure that the BPS l/O (on/off) switch is 
in the 0 (off) position. 
Connect Power Cable 
9. Plug the internal AC power cord into the 
back of the Bay Power Supply, directly 
under the access cutout. 
10. Replace the access cover plate back over If a power down was performed, power- 
the cutout and replace the screws. up the system (see Chart 2-2). 
Page 2 of 2 
FUSES 
2.OA RINGING VOLTAGE FOR ONUOPS TELEPHONE SETS 
0.5A DC VOLTAGE FOR COV AND DNIC TELEPHONE SETS 
Figure 2-3 Bay Power Supply 
SX-200 ML PABX Music-on-Hold/Pager Unit 
2.8 The following chart describes how to remove and replace the SX-200 ML PABX Mu- 
sic-on-Hold/Pager Unit. This procedure only interrupts SX-200 ML PABX functions 
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							Field-Replacement Procedures 
which are directly associated with the Music-on-Hold/Pager Unit (night bells, alarms, 
paging and Music-on-Hold). The rest of the SX-200 ML PABX continues to function. 
Chart 2-7 Replace SX-200 ML PABX Music-on-Hold/Pager Unit 
Step Action Comments 
Prepare the Music-on-Hold/Pager Unit 
1. Power down the external equipment including pag- 
ing amplifiers, night bells, alarms etc. 
Replace the unit 
2. Disconnect the 25 pair Amphenol connector from the A small screwdriver may be needec 
unit. to detach the connector locking 
screw. 
3. Replace the unit with a new one. If the unit is wall mounted, It may be 
necessary to loosen the mounting 
screws. 
4. Reattach the 25 pair Amphenol connector. The Sta- 
tus LED will light. 
5. Reapply power to the external equipment. When the 
pager is in use, the status LED will wink. 
SX-200 ML PABX Cabinet Interface Assembly 
2.9 The following chart describes how to remove and replace the cabinet interface 
assembly. 
Chart 2-8 Replace Cabinet Interface Assembly 
Step Action Comments 
Power down the PABX 
1. Power down the PABX. 
Remove the unit 
2. Identify and disconnect external cables. 
3. Remove four screws from the rear panel. Retain 
screws. 
4. Remove the assembly from the rear, identify and dis- 
connect the internal cables connected to it. 
Install replacement unit 
5. Connect the cables from the old assembly to the re- 
placement assembly. 
6. Reinstall the assembly using the retained mounting Ensure that cables are clear and un 
screws. obstructed. 
7. Reconnect external cables. 
t3. Power up the PABX 
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							Field-Replaceable Units 
Repack Equipment for Shipment 
2.10 Complete Chart 2-9 to properly repack equipment for shipment. 
Note: 1. Do not disconnect the system ground until printed circuit cards have been properly packed. 
The system must be properly grounded for the wrist strap to be effective. 
2. Whenever possible, re-use original packing material to repack equipment for shipment. 
Chart 2-9 Repack Equipment For Shipment 
Step Action Comments 
1. Pack all circuit cards in antistatic bags and PC Wear the antistatic wrist strap while 
card shipping cartons. handling circuit 
cards. 
2. Handle cards by the edges only, and follow the 
card handling procedures. 
3. Wrap ail items with air-cushion type material, Ensure that items within the carton 
and surround with loose paper to minimize cannot shift about, and will not get 
movement within the carton. scratched or damaged. 
4. Repack all items carefully, and list the contents 
of each carton on the label. 
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