Installation26 025-9368HCall Detail Option (950-9587) InstallationThese installation instructions describe installing the Call Detail option (950-9587) into a Model748. You should find the following parts included with the kit:Quantity Part Number Description Location1 321-0751 601-0661 (ASIC) U351 321-1001 128K x 8 RAM U221 416-1218 Battery-Clock socket U22This option kit is serial number specific. The invoice should indicate which serial number the kit wasordered for. If you are installing multiple upgrade kit, you will need to match the kits to the unitsbefore beginning the upgrades. If the AUX LED slowly flashes, this is the problem.CAUTIONALL PROGRAMMING WILL BE LOST! If you have not made an archive of your database doso before proceeding. Refer to Device configuration and Billing records in Section 4.1) Verify you have a current archive of your programming to prevent loss of data.2) Remove power from the unit.3) Remove the top cover from the unit.4) Locate U22 (behind the Connect switch, middle of the board, on the left side), cut off the tie-wrap (used for shipping purposes only). Remove the battery socket and RAM (in top of thebattery socket) from U22.5) Install new battery socket (32 pins) in U22 being careful to align the orientation notch and watchout for bent pins.6) Install new RAM (32 pin) in top of the battery socket in U22 being careful to align theorientation notch and watch out for bent pins.7) Locate U35 (directly behind the connect switch), remove it and set it aside.8) Install the new ASIC in U35 being careful to align the orientation notch and watch out for bentpins.9) Connect a local terminal to the unit and apply power. Enter the program mode, go to theDiagnostic menu and perform a Memory test. Verify that all 16 banks of U22 are tested (anoticeable pause as each bank is tested). If any of the banks appear to have been skipped (nopause as bank is tested) remove power from the unit and look for a bent pin.10) Go back to Main menu and then select options, verify that Call Detail option appears on the list.11) Upload your archived databases into the unit or reprogram the unit.
