Grounding The Ksu; Mdf Cabling - Samsung DCS Installation Manual

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Samsung DCS

Installation

NOTE: To activate the new cabinet, open system programming and use MMC 806 to reinstall slot 7 of the basic KSU

(see the Samsung DCS Combined Programming Manual for details). The data pertaining to the card removed from slot 7

will be lost and must be re-entered for its new position.

2.5 Grounding the KSU

CAUTION: Failure to provide an adequate ground may cause unpredictable operation or even circuit

card failure.

The DCS system comes equipped ready to use with a third wire AC ground provided through the

power cord. If you encounter any problems with the grounding, you may need to connect a new

ground. Contact your dealer or the STUK Technical Support department for advice (and refer to Fig-

ure 2-2 for location of the grounding lug). Read the 'Warning' notice below.

WARNING: Hazardous voltage may cause death or injury. Observe extreme caution when

working with AC power. If you encounter problems with the grounding for your system,

unplug the power cord from the AC outlet before attempting to connect a new ground.

All connections to the DCS system are made by way of a customer-provided main distribution frame

(MDF). Each interface card is connected to the MDF using a 25 pair female amphenol-type cable.

These cables can be routed into the KSU and expansion cabinet from below.

The cables are supplied with the cards that require them. Cables supplied are fitted with ferrite cores

for electrical "noise" suppression. Do not remove the ferrite cores from cables.

Label each cable to correspond with the slot numbers (Figure 2–6). Label each MDF terminating

block to identify the port, slot and cabinet numbers.

Use one pair twisted jumper wire to cross-connect stations or lines to their associated port.

Part 2

March 2001

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