Samsung DCS Compact, Руководство по установке

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2.4 GROUNDING
The DCS COMPACT comes equipped ready to use with a third wire AC ground provided through
the power cord. This third wire ground will be adequate for most applications. However, if it is
suspected that there is a problem with the ground provided at the AC outlet or local codes require a
solid earth ground to be connected to the KSU, the existing third wire ground
m u s t be disconnected
before power is applied. The existing third wire ground is disconnected by removing the holding
screw and taping and storing the wire (see Figure 2–4). After this wire has been disconnected, the
grounding lug on the PSU must be connected to a ground rod or metal cold water pipe using #10
AWG solid copper wire.
Failure to provide an adequate ground may cause confusing trouble symptoms or even circuit card
f a i l u r e .
2.5 MDF CABLING
All connections to the DCS COMPACT system are made by way of a customer-provided main
distribution frame (MDF). The KSU and expansion kit are each connected to the MDF using a 25
pair female amphenol-type cable. These cables can be routed into the KSU cabinet from below.
Label each cable to correspond with the connector numbers (see Figure 2–4). Label each 66
terminating block with the same connector number with which the cable is labeled.
Use one pair twisted wire to cross-connect stations or lines to their associated port.
SAMSUNG DCS INSTALLATION
T E C H N I C AL MANUAL A P R I L 1 9 9 6
2–2
WA R N I N G : Unplug the power cord from the AC outlet before attempting to connect the
ground. Hazardous voltage may cause death or injury. Observe extreme caution
when working with AC power.