This procedure details how to upgrade an APU102 (Tracker) unit to the latest LX800 processor card with the Comet Electronics LX-COM board. It is for upgrading the APU102, regardless of current configuration, to the LX800 platform.

Required Materials and Tools

Upgrade Parts Required

LX800 Upgrade Kit – Includes the following:

LX800 CPU Card with LX-COM daughter-card (4-Port Serial Adapter)
2.7Ah External CMOS Battery
Compact Flash with application executable, support files and generic parameters.
IRQ cable (2 connector, CBL-151-1124H) (attached)
24” CAT5 network patch cable
RJ45 Pass-through Jack
“NIC” label

Tools/supplies Required

Laptop computer with communication program such as ProComm, HyperTerminal, etc.
Null modem cable or modem cable with null adapter (25-pin DB male on APU-102 end)
Antistatic (ESD) wrist strap
Individual antistatic bag to fit APU-102 STD Bus cards

Optional

APU-102 System Operations Manual/Tracker Version
Communications program users guide

Upgrade Procedure

Tracker is very different from the standard Main-line systems you are familiar with. Contact your appropriate support department for assistance and notify them that you are about to perform the LX800 upgrade on the APU-102. If you are unable to do the file transfers, they can do that for you. Verify you have all materials required for the upgrade. If possible, check the train schedule by the site and schedule the upgrade accordingly to reduce the risk of missed trains.

Note: File downloads, and preparation of the LX800 card procedures that follow can be done prior to the site visit. Do not connect the CMOS battery until ready to install.

Caution	Follow proper antistatic precautions when handling the boards.

1) Put ESD wrist strap on wrist and connect to ground lug on outside-bottom of APU.

2) Connect a laptop to APU-102 via the local port and download the fileTRACKER.CFG. Refer to APU-102 System Operations Manual, Section 4, and your communications program user guide if necessary. Open the file with a text editor and download any site specific files that are called out in the file (header files, RSP scripts, etc).

3) These files may need to be edited for changes made to the system. Contact Comet Electronics for assistance.

Figure 1: LX-COM (4-Port Serial Adapter)

4) Verify the activity counter is 0. (T:### on prompt line)

5) Open the APU enclosure.

6) Power off the APU.

7) Remove the locking bar. (Loosen the thumbscrew and slide the pin toward the center of the card cage to release)

8) If your APU has an OPTO-48 card, leave in current slot and leave cables connected.

9) Remove cables to the processor card in card cage.

10) Remove the processor card from the card cage.

11) Place removed processor card in individual antistatic bag and label so that it can be easily determined which site/APU-102 it came from.

12) Remove the USSD card (Universal Solid State Disk), if applicable, and place in individual antistatic bag and label.

13) If APU doesn’t have a NIC connector on the bottom right side (near the telco jacks), remove the pass-through jack for LINE 2. Install the RJ45 pass-through in its place. The removed RJ11 jack and cable can be left loose inside the enclosure. Apply the supplied “NIC” label over the “LINE 2” label.

14) Connect the CAT5 patch cable to the RJ45 pass-through jack from inside the APU. (Labeled NIC or the one just installed)

15) Remove the cables to the COM4 card and remove it from the card cage. The COM4 will be replaced with the LX-COM board. If IRQ cable was connected, it will not be reused.

16) Remove the DB9 and modular telco cables from the modem and move to the eighth slot from the left.

Note: Cards are not slot addressed so placement doesn’t matter. Recommendations are so existing cables reach and ease of service.

Refer to Figure 2 for recommended card placement.

17) Remove the 10-pin IRQ ribbon cable from the TDA-104. The IRQ cable will not be reused.

18) Remove the 50-pin ribbon connected to the TDA104 from the retaining clips on the left side of the APU-102 and move the TDA-104 to the third slot from the left. It is not necessary to remove the cable from the TDA-104 to move it.

Note: Refer to Figure 2 for recommended card placement.

19) Re-secure the TDA-104 cable in the retaining clips.

Figure 2: APU-102 Recommended Card Placement in Card Cage
(optional OPTO-48 is usually in far left-hand slot)

20) Remove the LX800/LX-COM combo from its anti-static bag and connect the external CMOS battery on the LX-COM board, J9, located near the battery and holder. (See Figure 1). The battery may be shipped disconnected to conserve the CMOS battery.

21) Install new LX800/LX-COM combo into the card cage in the sixth slot.

Note: Refer to Figure 2 for recommended card placement.

Seat cards and connectors completely.

22) Connect the cables formerly connected to the COM4 removed earlier (except IRQ) to the LX-COM board in the same orientation as on the COM4.

Note: Refer to Figure 3 for cable connections.

23) Connect the 50-pin header multi I/O cable to LX800 card.

Note: Use caution to connect correct cable to the LX800. The LX800 multi I/O cable has 3 smaller ribbon cables connected to a single 50-pin connector. One is DB9 to modem, one goes to external Local Port and one is AT style keyboard jack (not used). It is the same 50-pin connector as the cable to the TDA104. The TDA104 cable is a full 50-pin ribbon cable.

24) Reconnect the cables to the modem. Modular cable can connect to either jack.

25) Connect the IRQ cable (10-pin ribbon cable pre-attached to the LX800) to the TDA-104, J3 (bottom connector).

Note: Refer to Figure 3 for cable connections.

Figure 3: Cable Connections with LX800/LX-COM

26) Connect the CAT5 cable to the RJ45 jack on the LX-COM board.

27) Inspect/reset all other cable connections to make sure none have come loose during the upgrade process, especially the IRQ cable.

28) Reinstall locking bar.

29) Connect external network as necessary.

30) Remove ESD wrist strap.

31) Power on the APU. The LX800 will take a few minutes to boot up initially. (SYS LED on solid when ready)

32) Set the clock on the APU. (DATE)

33) Upload any site-specific files downloaded/edited earlier with ZREC. (Refer to APU-102 System Operations Manual, Section 4, and your communications program user guide as necessary)

34) Reboot the APU and log back on. (REBOOT FAST)

35) Reset the clock if necessary. (DATE)

36) Perform MR (Master Reset).

37) Inspect remainder of AEI site and correct as necessary.

38) Verify site is operational. Notify your network/communications department and/or Comet Electronics that the APU-102 upgrade is complete. If calling Comet Electronics, please provide site #, location, phone number of site and s/n of APU-102, LX800, and Pentium card removed.

Comet Electronics Service technicians are available M-F, 8:00 am to 4:00 pm Central Time if you require assistance or additional documentation.

(888) 700-4214 or (816) 245-5400