E&M Jumper Block Positioning Procedure - Multitech MultiFRAD FR220 User Manual

MultiFRAD User Guide
E&M Jumper Block Positioning Procedure
Each voice/fax channel on the FR220/V2 Only has a separate E&M jumper block, located near the
channel jacks on the back panel of the MultiFRAD. Each jumper block has 8 pairs of pins with a
jumper plug on three adjacent pairs of pins. The E&M type numbers are labeled on the printed circuit
board, and the jumper plug needs to be centered on the E&M type number corresponding to type of
E&M connection used on that channel (1 or 2). Perform the following procedure if it is necessary to
move the E&M jumper block from its default (Type 2) position.
1 Ensure that the external power supply is disconnected from the MultiFRAD.
2 Turn the MultiFRAD upside down and remove the cabinet mounting screw at the center back of
the cabinet.
3 Turn the MultiFRAD right side up, then slide the base out the rear of the cabinet.
Note: To change a jumper position, lift the jumper plug up off the jumper block, then move it to the
new position, ensuring that the middle jumper of the jumper block is centered on the E&M type
number (1,3; 4; or 5). See Figure 2-3.
Figure 2-3. E&M Jumper Block Positions
4 Change the jumper block position for any voice/fax channel to be connected to an E&M trunk that
is not a Type 2 (the default position).
5 Slide the base all the way into the cabinet until it stops.
6 Turn the MultiFRAD upside down and replace the cabinet mounting screw that was removed in
step 2.
7 Turn the MultiVOIP right side up, then return to the previous section to cable the MultiVOIP
FR220/V2 Only.
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