Replacing equipment Page 49 of 362Hardware replacementNT1P61 Fibre Superloop Network CardUse this procedure to replace an NT1P61 Fibre Superloop Network card.See the X11 Administration (553-3001-311) for a description of allmaintenance commands, and the X11 System Messages Guide(553-3001-411) for interpreting system messages.Removing and replacing a Fibre Superloop Network card1 Disable the Fibre Superloop Network card by logging in to the systemterminal, loading the Network and Peripheral Equipment DiagnosticProgram LD 32, and executing DIS loop, where loop is the actual loopnumber of the Fibre Superloop Network card.2 Set the ENB/DIS switch to DIS.3 Disconnect all the fibre-optic patchcords and the SDI/System Monitorcable from the card faceplate.4 Unlatch the card’s locking devices by squeezing the tabs and pulling theupper locking device away from the card and pressing the lower lockingdevice downward.5 Pull the card out of the network module and place it into an antistatic bagaway from the work area.6 Check the replacement card and make sure that the Electro-opticalpacklets are already installed. If not installed, install the new packlets orremove the packlets from the faulty Fibre Superloop Network card andinstall them on the replacement card if you are sure that the packlets arenot faulty.7 Set the replacement card ENB/DIS switch to DIS.8 Hold the replacement card by the card locking devices and insert itpartially into the card guides in the module.WARNINGModule covers are not hinged; do not let go of the cover. Lift the coveraway from the module and set it out of your work area.
