11
Cabling
E&M Jumper Block Positioning Procedure
A jumper block exists for each voice/fax channel. The jumper
block is to the right of each set of channel jacks. The jumper
block contains 8-pairs of pins. The jumper plug fits over three
pairs of pins on the jumper block. The E&M type number is
labeled on the pc board. The jumper plug needs to be
centered on the E&M type number. Perform the following
procedure to change E&M jumper position.
1.
Ensure that power is removed from the MultiVOIP.
2.
Remove the front panel by loosening the two Phillips quarter
turn screws.
3.
Remove the eight chassis mounting screws and slide the top
cover back off the chassis to expose the rear panel.
4.
To change a jumper position, lift the jumper plug up off the
jumper block and move to the new position, ensuring that the
center jumper is centered on the E&M type number.
4
2 (Default)
1,3
5
5.
Change the jumper position for each voice/fax channel
that is connecting to an E&M trunk that is not a type 2. If
you have two voice/fax channel boards in your unit and
you need to change the jumpers on the second board,
remove the six screws from the top board and disconnect
the ribbon cable from the top board.
6.
Slide the top cover back on to the chassis and replace the
eight retaining screws removed in step 3.
7.
Replace the front panel and secure it by tightening the two
Phillips quarter turn screws.
