A Rack Mounting the Instrument126 Keysight 53147A/148A/149A Assembly Level Service GuideRack Mounting the InstrumentYou can mount the Keysight 53147A, 53148A, and 53149A in a standard 19-inchrack using the optional Rack Mounting Kit (53147-67001) available from Keysight:To rack-mount the instrument, you must first remove the front bumper, the frontbumper retainers, and the carrying handle. Use the following procedure toprepare the instrument for rack-mounting:1 Remove the front bumper by lifting the inner edge of the bumper away fromthe shroud near one corner at the top and one side and pulling that corneraway from the instrument. Repeat the process with the remaining corners untilthe bumper is free of the instrument.2 Pull out on both sides of the handle at the handle pivots, and rotate the handletowards the top of the instrument until the handle is touching the top of theshroud.3 Use a T15 Torx™ tool to remove the three screws that attach each of thehandle pivots to the sides of the instrument, and remove the handle.4 Use a #1 Phillips™ screwdriver to remove the two screws that attach each ofthe front bumper retainers to the top and bottom of the instrument (there arefour front bumper retainers—two each on the top and bottom).NOTE Unlike the hardware used elsewhere in this instrument, all hardware used toattach the handle pivots and the rack mounts to the instrumentis metric.OPTIONS001 Oven Time Base002 BatteryMain Power! !In or OutReference 10 MHz AuxiliaryAC POWER90-130 VAC 50/60/400 Hz190-230 VAC 50/60 HzFUSE1.5A T250VWARNING: To avoid electrical shock:Do not remove covers.No user serviceable parts inside.Refer all servicing to qualified personnel.RS- 232 GPIBCounter/ Power Meter/ DVMThis unit must be earth grounded. Made in U.S.A.of domestic and foreign contentPOWER METERPOWERGHz MHz kHz Hz20 GHz Counter/Power Meter/DVMMODIFYReset/LocalCalFactorFreqOffseMenuOn/OffEnterAvg+ / -FreqClearResolShiftCh 12Rel FreqOffsetAvg OnRel PwrOffsetdBdBmWattsmWuW%Ext RelErrorShiftHoldRate Rmt SRQStandbyCounterPowerMeterDVMRatePwrOffseDisplayPowerdBm/WStoreCalZeroOffsetOn/OffRelPwrDVM+–DAMAGE±60 VDCDisplayDVMPOWER METEROUTPUTPowerRef.1.00mW 50MHzINPUTDo NOTExceedSensorMax PowerCOUNTEROffsetOn/OffRel FreqChanSelectCOUNTERCHANNEL 110 Hz to 125 MHzDAMAGE+30 dBm1MCOUNTERCHANNEL 250MHzto 26.5GHz50DAMAGE+27 dBmGate