Network Router User's Manual

Installing and Removing a Power Supply
3-14 Matrix X16-C Chassis Setup
Power Supply Planning
Althougheachpowersupplyrequiresitsowncircuit,whenplanning theX16‐Cpowerbudgetyou
havetheoptionofdrawingfromoneormoresourcesbyeithertheN+1or1+1m ethod,
respectively.
DrawingpowerbytheN+1methodprotectstheX16‐Cagainst
thefailureofasinglepower
sourcealthoughnotagainstanoutagebythatsource.Inaschemewherefourmodulesare
installed,asshowninFigure 3‐11,youcanassignallfourmodulestosource“A . ” Thisisthemost
commonapproachtopowersupplyplanning.
Figure 3-11 Power Supply Planning: N + 1 Method
Alternately,drawingpower
bythe1+1methodhastheadvantageofprotectingtheX16‐Cagainst
anoutagebyoneofthepowersourcesaswellasthefailureofoneorasmany ashalfofyour
powersupplies.However,thismethodrequireseitherabackupbatteryoranotherpowersource

separatefromthefirstpowersource.AsshowninFigure 3‐12,sixpowersuppliesareinstalled
withthreeassignedtosource“A ” andtheothertwotosource“B.”
Figure 3-12 Power Supply Planning: 1 + 1 Method
Installing a Power Supply
Powersuppliesareinstalledinslotslocatedalongtherightsideofthechassis,asshownin
Figure 3‐13.Ifyouintendtoinstallonlyasinglepowersupply,itcanbeinstalledinanyoftheslots
labeledPS1toPS6inthechassisalthoughtheslotPS1is
leftopenforyourconvenience.
ToinstallpowersuppliesintheMatrixX16‐Cchassis,refertothefollowingfiguresandproceedas
follows:
1. Unpackthepowersupplybyremovingitfromitsshippingboxandstrippingthepacking
material.(Savetheshippingboxandmaterialsintheeventtheunitmust
bereshipped.)
2. Removethepowersupplyfromitsprotectivewrapping.
3. Examinethepowersupplycarefully,checkingfordamage.Ifanydamageisnoted,donot
installthepowersupply.ContactEnterasys Networksforinstructions.
4. LocatetheESDwriststrapshippedwiththeMatrixX16‐Cchassis.AttachtheESDwriststrap
toyour
wristandplugthecablefromtheESDwriststrapintotheESDgroundingreceptacle
atthebottomofthechassisasshownbackinFigure 3‐10.
4
3
2
1
N
+
1
Circuit A
6
5
4
3
2
1
1
+
1
Circuit A
Circuit B