Specifications

32 Chapter 4
Applying Hardware Settings to XMU+ Line Cards
1. Locate the MOH line card in the back of the XMU+ unit.
See Line Card Checklist on page 14 for more information.
2. Loosen the two thumbscrews on either end of the line card’s faceplate.
3. Pull the line card straight out.
4. Locate the four sets of 8Ω/600Ω jumpers on the side of the line card, as shown
below.
5. Set one set of jumpers by applying clips to the
following pins:
 Pins 1-2 for 8Ω.
 Pins 2-3 for 600Ω.
6. Repeat step 5 until the correct jumper settings
have been applied to each of the four sets of
jumpers.
7. Line up the line card’s circuit board on the plastic rails in the chassis.
8. Slide the line card into place.
When seating the line card, there should be slight resistance. Do not force the
line card into place.
9. Tighten the thumbscrews.
10. Repeat Steps 1 to 8 until the appropriate jumper settings have been applied to
all MOH line cards in the XMU+.
Jumper 2
Jumper 4
Jumper18
Jumper 11
Pin 3
Pin 2
Pin 1
Jumper Set
Caution...
Forcing the line
card into place
could bend the
pins on the
connector.