Grounding; Mdf Cabling - Samsung OfficeServ 100 Installation Manual

CHAPTER 2. Installing Basic KSU and Expansion Cabinet

2.6 Grounding

A three wire for AC grounding via AC power cord should be used for the OfficeServ 100
system However, if it is suspected that there is a problem with the ground provided at AC
outlet or local codes require a solid earth ground to be connected to the KSU, the existing
third wire ground must be disconnected before power is applied. The existing three wire
ground is disconnected by removing the holding screw and tapping and storing the wire.
After this wire has been disconnected, the grounding lug on the PSU(Power Supply Unit)
must be connected to a ground rod or metal cold water pipe using #A10 AWG solid copper
wire.
Failure to provide an adequate ground may cause intermittent problems or even circuit card
failure.

2.7 MDF Cabling

All connection to the OfficeServ 100 system are made by way of a customer-provided
MDF(Main Distribution Frame). The KSU and expansion kit are each connected to the
MDF using a 25 pair female amphenol-type cable(with the exception of the TEPRI, ITM3,
MGI3 cards). These cables can be routed into the KSU cabinet from below.(See Figure 2.7
& 2.8)
Use one pair twisted wire to cross-connect stations or lines to their associated port.
2-10
Before connecting the ground
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. Remove champ connectors.
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