Nortel Meridian SL-1 Supplementary Manual

Also see for Meridian SL-1: Overview guide Description User guide

Contents

Nortel Meridian SL-1 Supplementary Manual Manual pdf 39 page image

Upgrading LE, A, M, MS to Option 21 2-31Shelf upgrades to Meridian 1 553-3001-253Figure 2-11Typical QSD81 Shelf Circuit Pack Layout1MEM 2CPU 3MSI 4MS/PS 5LP0/16LP2/37LP4/58LP6/79LP8/910LP10/1111LP12/1312LP14/1513SDIDTI14SDIDTI15SDIDTI16CONVGND-48V-0-48VGND-48V-1DGNT8D68AAFLOPPYDISKMODULE(Note 2)QPC355CONVNote 1Note 1: To avoid a system failure, do not install a QPC471 or QPC775 Clock Controllercircuit pack in slots 13, 14 or 15. These circuit packs can be installed in any available slot5 through 12.Note 2: When the NT8D68AA Floppy Disk Module is installed within two slot spaces ofthe Converter the shield must be installed between it and the Converter.The NT8D68AA Floppy Disk Module can be located elsewhere or in another shelf whenthese slots are not available.Note 3: QPC414 ENET can be installed in slots 5 through 12.NT8D04 can be installed in slots in slots 5 through 12 (default slots are 5, 7, 9, 11).SDI can be installed in slots 5 through 15 (recommended slots are 13, 14, 15).NT8D17AA can be installed in slots 5 through 12 (recommended slot 12).ShelfBackplaneNT8D19AAMMPSQPC687CPUQPC742FDIQPC139SDIorQPC841 ShieldNotUsedNT8D17AACTQPC414ENETorNT8D04QPC414ENETQPC414ENETorNT8D04QPC414ENETQPC414ENETorNT8D04QPC414ENETQPC414ENETorNT8D04Note 3SL-1 MS (QCA109 CE cabinet) to Meridian 1 Option 21Be sure the preliminary steps have been carried out before starting thisprocedure.Note: The system service will be interrupted and emergency service(if provided) will be connected.1 Invoke emergency transfer by operating the line transfer switch on theQPC84 power monitor circuit pack to ON or 1.• Set the CAB INP circuit breaker on the QSP43 power controlshelf in the QCA109 cabinet to OFF.• Set the AC input circuit breaker on the -48V rectifier in theQCA109 cabinet to OFF.