View source for Upgrade LX800 w/COM4N to LX-COM

<p>This procedure details how to upgrade an APU-102 to the LX800 processor card with the Comet Electronics LX-COM board. It is for upgrading the APU-102 with the LX800 processor and COM4N to utilize the LX-COM, quad serial board.</p>

= Required Materials and Tools =
=== Upgrade Parts Required ===

*LX-COM daughter-card (4-Port Serial Adapter) with 2.7Ah External CMOS Battery
*IRQ cable (2 connector, CBL-151-1124H)
*24” CAT5 network patch cable
*RJ45 Pass-through Jack

=== Tools/supplies Required ===

*7/32 nutdriver

= Quick Start Upgrade Procedure =
<p>This Quick Start procedure is for experienced users. If a more detailed procedure is needed, go to [[#Detailed Upgrade Procedure|Detailed Upgrade Procedure]].</p>

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|- style="height: 23px;"
| style="width: 1.97642%; text-align: center; background-color: #e67e23; height: 23px;" | '''Caution'''
| style="width: 43.8694%; height: 23px;" | Follow proper antistatic precautions when handling the boards.
|}
1) Notify AEI support department you are starting the upgrade.

2) Disable maintenance reporting if necessary.

3) Remove COM4N card.

4) Move modem to 8<sup>th</sup> Refer to Figures 1 and 4 for card and cable placement.

5) Move TDA104 to 3<sup>rd</sup>

6) Remove LX800.

7) Disable on-board battery (Figure 2).
{| style="border-collapse: collapse; margin-left: auto; margin-right: auto; width: 764px;" border="1px" cellpadding="4px"
|- 
| style="width: 92.7601px; background-color: rgb(230, 126, 35);" | <p>'''ATTENTION!'''</p>
| style="width: 652.351px;" | <p>Leaving the on-board CMOS battery enabled can cause catastrophic failure with external battery connected.</p>
|}
8) Connect IRQ cable to J3 (Figure 2) and assemble LX-COM to LX800.

9) Connect/verify CMOS battery (Figure 3) and install LX800 combo card in 6<sup>th</sup>

10) Connect cables as appropriate.

11) Replace existing network adapter and pass-through with ones provided.

12) Connect CAT5 to RJ-45 jack on LX-COM.

13) Reconnect external network.

14) Power up APU-102.

15) Set date/time.

16) Enable maintenance reporting if necessary.

17) Test APU-102 and check rest of system for proper operation.

18) Notify AEI support department the upgrade is finished.
= Detailed Upgrade Procedure =
<p>If your site has maintenance reporting, contact the appropriate department and notify them that you are about to perform an upgrade on the APU-102. During the upgrade process, maintenance messages will be generated. Maintenance reporting can be disabled until the upgrade is completed. 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. It is good practice to ensure you have current parameter dump and on-board backups are current. Perform before upgrade if necessary.</p>

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|- style="height: 23px;"
| style="width: 1.97642%; text-align: center; background-color: #e67e23; height: 23px;" | '''Caution'''
| style="width: 43.8694%; height: 23px;" | 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) Open the APU enclosure.

3) Power off the APU.

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

5) Remove the cables to the COM4N card and remove it from the card cage. The COM4N will be replaced with the LX-COM board.

6) Remove the DB9 and modular telco cables from the modem and move to the eighth slot from the left.<p style="margin-left: 25px;" >Note: Cards are not slot addressed so placement doesn’t matter. Recommendations are so existing cables reach and ease of service.</p>
<p style="margin-left: 25px;" >Refer to Figure 1 for recommended card placement.</p>
7) Remove the 10-pin IRQ ribbon cable from the TDA-104 and LX800. It will not be reused.

8) Leave the 50-pin ribbon connected to the TDA104. Move the TDA-104 to the third slot from the left from (remove the cable from the retaining clips on the left side of the APU-102 if necessary).<p style="margin-left: 25px;" >Note: Refer to Figure 1 for recommended card placement.</p>
9) Re-secure the TDA-104 cable in the retaining clips.[[image:img1741876865860.png|600px|center|thumb|Figure 1: APU-102 Recommended Card Placement in Card Cage]]

10) Remove the LX800 card.

11) Remove the network adapter cable from the LX800 card.

12) Disable the on-board CMOS battery on the LX800 by removing the jumper on J31. Leave the jumper installed on pin 1 only so it will be available for future use. Refer to Figure 2.<p><br></p>

{| style="border-collapse: collapse; margin-left: auto; margin-right: auto; width: 764px;" border="1px" cellpadding="4px"
|- 
| style="width: 92.7601px; background-color: #e67e23;" | <p>'''ATTENTION!'''</p>
| style="width: 652.351px;" | <p>Leaving the on-board CMOS battery enabled can cause catastrophic failure with external battery connected.</p>
|}
[[image:img1741854987084.png|667px|center|thumb|Figure 2: LX800 Front Side]]

13) Connect the end of the supplied IRQ cable without the strain relief to J3 on the LX800. Refer to Figure 2.

14) Remove the 4 nylon nuts from the standoffs on the LX-COM board

15) With the LX-COM on top, carefully align the standoffs and connectors with the holes and connectors on the LX800 and press together to seat.

16) Secure with the nylon nuts removed earlier. Do not over tighten.

17) Connect the external CMOS battery on the LX-COM board, J9, located near the battery and holder. (See Figure 3).<p><br></p>
[[image:img1741849110291.png|400px|center|thumb|Figure 3: LX-COM (4-Port Serial Adapter)]]

18) Install the LX800/LX-COM combo into the card cage in the sixth slot.<p style="margin-left: 25px;" >Note: Refer to Figure 1 for recommended card placement.</p>
<p style="margin-left: 25px;" >'''Seat cards and connectors completely.'''</p>
19) Connect the cables formerly connected to the COM4N removed earlier to the LX-COM board in the same orientation as originally connected on the COM4N.<p>Note: Refer to Figure 4 for cable connections.</p>
20) Connect the 50-pin header Multi I/O cable to LX800 card.<p style="margin-left: 25px;" >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.</p>
21) Reconnect the cables to the modem. Modular cable can connect to either jack.

22) Connect the IRQ cable (10-pin ribbon cable pre-attached to the LX800) to the TDA-104, J3 (bottom connector).<p style="margin-left: 25px;" >Note: Refer to Figure 4 for cable connections.</p>
[[image:img1741856805947.png|400px|center|thumb|Figure 4: Cable Connections with LX800/LX-COM]]

23) Remove the existing network adapter cable and pass-through jack from the bottom of the APU-102.

24) Install the replacement RJ45 pass-through and cable in its place.

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

26) Connect external network as necessary.

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) Remove ESD wrist strap.

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

31) Set the clock on the APU. (Refer to APU-102 System Operations Manual, Section 4).

32) Enable maintenance reporting if disabled above.

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

34) Verify site is operational. Notify your network/communications department that the APU-102 upgrade is complete.

<p>{{Comet Service Contact}}</p>

[[Category:Procedures]]