Mounting The Ksu - Comdial DX-80 Technical Manual

2.4.3 MOUNTING THE KSU

Follow these instructions to mount the KSU.
1. Select a suitable location for the KSU1 considering that the expansion (KSU2) may be installed
at the same time or sometime in the future. KSU1 and KSU2 may be mounted such that they
are side-by-side or mounted one above the other.
2. Using the mounting template as a guide, mark the two mounting screws locations on the MDF
backboard.
3. Pre-drill two screw holes and install the two, pan-head No. 10 screws (supplied) into the back-
board with a regular screwdriver. The screw heads should protrude about 1/4-inch from the
backboard plywood surface.
4. Lift the KSU over the two screws, allowing the screws to extend into the KSU slotted mounting
holes. As the KSU is allowed to rest in place on the mounting screws it will slip over the screw
shanks until the top of the slot is reached. Properly installed, the KSU power transformer
(where the KSU AC power cord is located) is positioned in the upper left corner. The power
switch and power/heartbeat LED are positioned at the left side of the KSU toward the bottom.
It is very important that you mount the KSU correctly to allow proper
power supply heat dissipation. KSU1 and KSU2 must be
5. Ground the KSU. Extend the earth ground #10 wire into the KSU opening at the lower left cor-
ner of the KSU. Terminate the grounding wire onto the ground lug provided there
October, '03
CAUTION
wall mounted only.
ground lug
Comdial
DX-80 Installation & Maintenance
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