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DHS-E Installation
Check that the type and quantity of boards received is correct. DO NOT unpack the
individual boards at this time.
Verify optional equipment is received and is in good condition.
Verify that a Power Line Surge Protector is on-site.
DHS-E Installation
1. Backboard MDF Installation
A wooden backboard is recommended for all installations and must be installed when
the location has masonry or plasterboard walls. A 1/2 in. plywood material is sufficient for
most installations.
1. Mount the backboard at a convenient height, about 3 ft. above the floor. It can be
bolted in various places to distribute the weight of the system.
2. Space should be available on the bottom side of the backboard for the MDF cabling
and for optional equipment such as a music source and battery backup.
3. It is recommended that the location of each major item be roughly sketched on the
backboard as an installation layout.
4. Locate the Telco-provided CO/Centrex lines at the demarc and extend them to the
MDF location.
2. KSU Grounding
To ensure that the system will operate properly, a good earth ground is recommended.
The Telco protector ground terminal or a metallic COLD water pipe will usually provide a
reliable ground path. If cold water pipe is used, carefully check that the pipe does not
contain insulated joints that could isolate the ground. In the absence of the cold water
pipe, a ground rod or other source may be used. A No. 8 AWG copper wire should be used
between the ground source and the KSU.
Voltage Surge/Spike Protection
To reduce the effects of AC voltage surges and spikes that may cause system
malfunctions, false logic, and/or damage to the electronic components, it is
recommended that a separately sourced surge/spike protector be installed. Check the
manufacturer's specifications to ensure that the device meets the following
requirements:
The power cord should not be used with a 3-wire to 2-wire plug adapter.
A power line surge protector should be used to protect the power supply from
electrical surges. The surge protector should be installed in accordance with the
manufacturer's instructions and applicable local electrical codes.
If any equipment is damaged or missing, notify the appropriate personnel to correct the
situation.
The ground wire should be kept as short as possible and can be connected to the ground
lug located on the bottom of the KSU. Check your local grounding regulations before
installing the ground wire.
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