Network Router User's Manual

Setting Up the Matrix X16-C Chassis

3-12 Matrix X16-C Chassis Setup

Tomeettheserequirements,usethefourtappedholeslocatedontherear‐centersideofthe

chassis.Theseholesmeettheholegroundingboltpatternrequirements,asshowninFigure 3‐9.

Figure 3-9 Telcordia GR-1089 Grounding Hole Pattern and Cable

TogroundthechassisaccordingtotheTelcordiaGR ‐1089Section9,BondingandGrounding

Requirements,aconnection

isneededbetweenthechassisandtheenclosuremetalworkora

nearbypointontheCentralOffice(CO)Groundsystem.Theconnectionismadeusingoneor

moregroundingwires(asneeded)fabricatedfroma12AWGstrandedcopperwire.Tofabricate

andinstallagroundingwire,proceedasfollows:

1. Cut

a12AWGstranded‐copperwiretolength,longenoughtoreachfromthegrounding

locationofthechassistotheselectedgroundinglocationontheCOGroundorenclosure

metalwork.

2. Installalistedtwo‐holecompression‐typeconnectoronbothendsofthegroundingwire.

3. Applyasuitableantioxidantto

thechassisgroundinglocationandunpaintedsurface

groundinglocationontheCOGroundorenclosuremetalwork.

4. Connectonegroundcabletwo‐holeconnectortothechassisusingtwoofthe1/4‐20screws

shippedwiththechassis.Connectthetwo‐holeconnectorattheotherendofthecabletothe

COGroundorenclosuremetalworkusinguser‐suppliedscrews.

5. Torquescrewsto67in‐lbs(±5%).

1 12 AWG stranded copper wire 3 Chassis 5 1/4-20 ground screws (4)

2 Rear of chassis, bolt pattern grounding site 4 Two-hole connectors

Notes: The hole pattern in the chassis allows you to use two differently-sized two-hole connectors.

The size is determined by the orientation of the connector. The vertical and the horizontal

orientations allow for two standard double-hole compression ground lug configurations.

IIn Norway, Sweden, and Finland, the same procedure can be used for a permanent protective

earth ground connection as required by their national deviation to IEC 60950, Section 5.1.7.

IIn Denmark, the chassis must be installed utilizing a Type B grounded plug.

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