AM-90 Installation Instructions
© 1998 ALPHA MICROSYSTEMS FIRST EDITION: March 1998 To re-order this document, request part number PDI-00090-00 FCC Notice This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
Table of Contents INTRODUCTION About the AM-90 Board AM-90 Board Layout COMPATIBILITY ELECTRONIC EQUIPMENT HANDLING PRECAUTIONS PREPARING YOUR COMPUTER INSTALLING THE AM-90 BOARD Installing AM-90 Board(s) in an Eagle 100 or Eagle 100LC Installing an AM-90 Board with an AM-314 Installing Two AM-90 Boards with an AM-318 Installing Multiple AM-318/AM-90 Board Combinations PDI-00090-00, Rev.
INTRODUCTION The AM-90 Lightning Board is a compact circuit card assembly that provides four RJ-45 ports and builtin protection against lightning damage for the Eagle family of systems. It gets its name from its built-in surge protection feature. An array of transient absorption zener diodes mounted on the board guards against voltage surges caused by lightning strikes and other damaging transient electrical fluctuations.
Page 2 AM-90 Installation Instructions COMPATIBILITY The AM-90 board family is supported in the Eagle and AM-6060 family of systems. It is compatible with the AM-137 CPU board found in the Eagle 100 and Eagle 100LC, the AM-138 CPU board found in the Eagle 450, the AM-301 board found in the AM-6060 network based system, and with the AM-314, AM-318-00 (AM-90 -02 through -04 versions only), and AM-318-10 I/O boards. The AM-90 is included as part of the AM-318-10 assembly.
AM-90 Installation Instructions Page 3 ELECTRONIC EQUIPMENT HANDLING PRECAUTIONS With the AC power cord unplugged and the top cover removed, the components inside your computer are vulnerable to damage caused by static discharge. Your body and clothing can store an electrical charge that can damage or destroy unprotected electronic components. Before handling any computer hardware, make sure your work area is properly protected against static discharge.
Page 4 AM-90 Installation Instructions INSTALLING THE AM-90 BOARD The exact installation procedure differs depending on the type of I/O board you’re attaching the AM-90 to. Please turn to the section that applies to your system.
AM-90 Installation Instructions Page 5 For AM-90 revision A or B boards, if you were using the AM-137’s remote reset feature, you must either remove the remote reset jumper at W2 on the AM-137 board to disable remote reset, or install the special remote reset cable, PDB-10323-00, available from Alpha Microsystems. If you leave the remote reset jumper in place, port 0 is on an AM90 board, and the remote reset cable is not installed, your computer will not boot.
Page 6 AM-90 Installation Instructions 5. Attach your terminal/printer cables to the RJ-45 connectors on the rear panel. Port 0 is at the left, as seen from the outside of the system. 6. Boot and test your system before replacing the computer's cover, in case you need to make some adjustments. Refer to your computer’s owner’s manual for more information on testing procedures. Be sure to test every port attached to an AM-90 board.
AM-90 Installation Instructions Page 7 The 50-pin cable is split so the two halves can overlap each other. Fold this cable the same way as the first one, wrapping it around the previous cable. If necessary, roll the cables inside to make room for the next cable outside. See the next section. 5. Plug the 50-pin connector at the other end of the cable into the connector at J1 on the AM-318 board. Make sure you align the red stripe on this cable with pin 1 on the connector.
Page 8 AM-90 Installation Instructions 5. Plug the 50-pin connector at the other end of the cable into the connector at J1 on the AM-318 board. Make sure you align the red stripe on this cable with pin 1 on the connector. Be sure to support the AM-318 board as you plug the in. Do not use excessive force or you may damage the AM-318 board or the connector holding it to the system board. 6. Repeat this procedure for each AM-318, working your way up the rear panel for each successive AM-318.
AM-90 Installation Instructions Page 9 ENET BOOT MAIN ALT ETHERNET PARALLEL 0 PARALLEL 1 34 35 36 37 30 31 32 33 24 25 26 27 20 21 22 23 14 15 16 17 10 11 12 13 4 5 6 7 0 1 2 3 Rear Panel with 32 RJ-45 ports 10. Boot and test your system before replacing the computer's cover, in case you need to make some adjustments. Refer to your computer’s owner’s manual for more information on testing procedures. Be sure to test every port attached to an AM-90 board.
