Cabletron Systems STS-PSU Installation Manual

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Cabletron Systems STS-PSU Installation Manual Manual pdf 1 page image

1 2 3SmartStack STS-RPC RedundantPower CenterSmartStack STS-PSU RedundantPower Supply UnitIntroductionThe SmartStack STS-PSU Redundant PSU is an externalpower supply unit for the SmartStack STS16-20RM TokenRing Switch, the SmartStack STS16-20R Token RingWorkgroup Switch, and the SmartStack STS16-20FRMToken Ring Fiber Switch.The STS-PSU can be table mounted or mounted in the STS-RPC chassis unit, and is connected to the STS16-20RM/STS16-20R/STS16-20FRM switch via a low voltage DCcable. The STS-PSU is used in installations where redundancy(increased reliability) is required.The SmartStack STS-RPC Redundant Power Center is achassis unit designed to hold from one to six STS-PSUs. TheSTS-RPC unit can be table mounted or mounted in anystandard 19" rack.Figure 1. STS-RPC Front PanelPackage ContentsYour STS-RPC package contains the following items:• One STS-RPC (with five blind panels)• One STS-PSU (mounted in the STS-RPC chassis)• One DC power cable• One plastic bag containing rubber pads, rack mountingnuts and an Allen key• One STS-RPC/STS-PSU Installation Guide (thisdocument)Your STS-PSU package contains the following items:• One STS-PSU Redundant Power Supply Unit• One DC power cable• One STS-RPC/STS-PSU Installation Guide (thisdocument)Installing the STS-RPC UnitUse the following steps when table-mounting the STS-RPCRedundant Power Center:1. Mount the four self-adhesive pads in the recesses on thebottom of the unit.2. Place the unit on any stable, flat surface. Leave enoughroom around the unit for ventilation and access to cables.Caution: Place no more than three units (switches) directly ontop of any other unit. Doing so may cause damage to the lowerunit.Use the following steps when rack-mounting the STS-RPCRedundant Power Center:1. Open the cap on the front of each bracket cover. Using theAllen key supplied with the unit, remove the retainingscrews, keeping them for later use. Push the bracket coverstowards the back of the unit and lift them off.2. Position the STS-RPC unit in the rack. Slide the unit upand down until the bracket holes line up with the holes inthe rack. Using the screws from the bracket covers and thenuts supplied with the unit, attach the unit to the rack.Close the bracket cover caps again to conceal the screws.Note: Mount the STS-RPC unit in the middle of a stack ofswitches so that the DC cable is able to reach all switches.Installing the STS-PSU Power Supply UnitThe STS-PSU unit can be table mounted or mounted in theSTS-RPC chassis.If you are table mounting the STS-PSU unit, simply place theunit on any flat, stable surface. Leave enough room around theunit for ventilation and access to cables.If you are mounting the STS-PSU unit in the STS-RPCchassis, use the following procedure:1. Select a location for the STS-PSU unit in the STS-RPCchassis. Any vacant slot can be used.2. Remove the blind panel by loosening the twothumbscrews.3. Slide the STS-PSU unit into the slot and secure the unitwith the two thumbscrews.Connectors and LEDsThe STS-PSU connectors and LEDs are listed below:Cabling and Applying Power to the STS-PSUCaution: Both the SmartStack STS-PSU unit and the STS16-20RM/STS16-20R/STS16-20FRM switch must be off beforeconnecting or disconnecting the DC power cable.Connect one end of the DC cable to the DC outlet on the backof the STS-PSU unit (either end of the cable can be used).Connect the other end of the cable to the redundant powersupply connector on the back of the switch (you need one STS-PSU unit per switch).Figure 2. SmartStack STS-PSU Back PanelName DescriptionDC Connector 18-pin connector for the proprietaryDC cable.AC Connector Standard AC power receptacle.Power LED The power LED is on when theSTS-PSU is receiving power.Table 1. STS-PSU Connectors and LEDs

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