
110 Chapter 9
XMU+ Hardware Upgrades
To install a new T1 line card
1. Determine whether the T1 line card will reside in slot 1 or slot 5, and locate that
slot on the back of the large XMU+ unit.
The small chassis can have a single T1 card.
2. If required, remove any line cards that conflict with the new T1 line card to be
installed. See Understanding Line Card Population Rules on page 30 and To
remove a line card on page 109 for more information.
3. Ensure that the appropriate settings have been applied to the T1 line card. See
Chapter 3 of the XMU+ Installation Handbook for more information.
4. Line up the T1 line card’s circuit board on the plastic rails in the chassis.
5. Slide the T1 line card into place.
When seating the card, there should be slight resistance.
6. Tighten the thumbscrews on either end of the T1 line card’s faceplate.
7. Connect the RJ-45 connector to the port on the T1 line card. See To cable T1 line
cards on page 54 for more information.
8. Confirm that the XMU+ recognizes the new line card. See To verify line card
operation on page 111.
To install a new MOH card
1. Determine where the MOH line card will reside, and locate that slot on the back
of the XMU+ unit.
2. If required, remove any line cards that conflict with the new MOH line card to
be installed. See Understanding Line Card Population Rules on page 30 and To
remove a line card on page 109 for more information.
3. Ensure that the appropriate settings have been applied to the MOH line card.
See Applying MOH Line Card Settings on page 31 for more information.
4. Line up the MOH line card’s circuit board on the plastic rails in the chassis.
5. Slide the MOH line card into place.
When seating the card, there should be slight resistance.
6. Tighten the thumbscrews on either end of the line card’s faceplate.
7. Connect the RCA/Phono connectors to the appropriate port on the MOH line
card. See To cable MOH line cards on page 55 for more information.
8. Confirm that the XMU+ recognizes the new line card. See To verify line card
operation on page 111.
aut
on...
Forcing the T1 line
card into place
could bend the
pins on the
connector.
Caution...
Forcing the MOH
line card into place
could bend the
pins on the
connector.
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