Samsung DCS - Part 1. Site Requirements

Samsung DCS Part 1
Installation March 2001
1
Part 1. Site Requirements
When planning the installation of the DCS system, choose a site that meets the following require-
ments:
•
Select a location for the key service unit (KSU) that has enough space for easy installation and
has adequate lighting (Figure 1–1).
•
Select a location that minimises cable lengths. See the Cable Requirements table below.
•
The equipment should not be exposed to direct sunlight, corrosive fumes, dust, constant vibration
or strong magnetic fields such as those generated by motors and copying machines.
•
A direct commercial AC power outlet is required. Do not use extension cords. Preferably, a dedi-
cated circuit should be used to minimise the risk of other electrical equipment being connected
that could adversely affect system operation.
•
Ensure that all wires and cables going to and coming from the KSU are properly routed. Do not
cross fluorescent lights or run parallel with AC wires.
•
The equipment must be located in an environment that will maintain a temperature range of 0° –
40°C and a humidity range of 10%–90% non-condensing.
•
Allow at least 150 mm clearance on both sides and 150 mm clearance on top of the KSU to en-
sure proper ventilation.
•
Do not install within a 2-mile radius of a broadcasting antenna or in close proximity to a fire
sprinkler head or other source of water.
Meeting these requirements will help to ensure proper performance and greater life expectancy of the
system.
CABLE REQUIREMENTS
EQUIPMENT CABLE DIAM.(mm) MAX FEET MAX METRES
DIGITAL KEYSETS 1 PR. TWISTED 0.5–0.8 1300 400
ADD-ON MODULES 1 PR. TWISTED 0.5–0.8 1300 400
SINGLE LINE TELEPHONE 1 PR. TWISTED 0.5–0.8 3000 1 km
SERIAL INTERFACE MODULE 2 PR. TWISTED 0.5–0.8 1300 400
DOORPHONE 2 PR. TWISTED 0.5–0.8 330* 100*
KEYSET DAUGHTERBOARD
TO EXTERNAL DEVICE
— — 330 100
*This is the maximum distance a doorphone can be from the DPIM. The DPIM can be a maximum of 274 cable metres
from the KSU.