Specifications

Page 3-9Installation Instructions: Roadrunner 040 EAGLE 100/AM-3000M/VME Upgrade
6.Refer to the next illustration and install two plastic standoffs on the AM-987
board where indicated. Remember that these standoffs are installed on the
component
side of the board, with the plastic screws inserted from the
solder side. The heads of the the plastic screws will rest on top of the
empty AM-140 memory connectors to provide insulation and support of the
AM-987 board.
7.Be sure jumper W1 is set to enable the CPU header at U14. (Installed in
position
toward U14).
8.A 121-pin socket was installed on the bottom of the AM-987 board prior to
shipment. This socket gives the AM-987 board added height so that it does
not come in contact with other components on the AM-140 board. During
shipment, the pins on the socket are protected with a piece of conductive
foam. Before you install the AM-987, remove the foam and make sure no
foam residue remains stuck to any of the pins.
9.At this point, your AM-987 board should be ready to install. The AM-987
board sets on top of the AM-140 board, plugging into the CPU socket at
location U144. There is a cutout on the AM-987 CPU header that makes it
easy to align the board with the CPU socket on the AM-140 board. Place
the AM-987 board into position as shown, using the cutout to align the pins
of the CPU header at U14 with the CPU socket on the AM-140 board. If
everything is lined-up just right, you will feel the board settle into position in
the socket. This is another operation where it’s best to take your time and
be sure the AM-987 and AM-140 CPU socket are properly aligned. When
you’re sure the AM-987 board is in position, gently press the AM-987
board into the socket.
10.Since the AM-987 board will be almost completely covered by the
Roadrunner mounting bracket, this would be a good time to attach the
X-bus cables to the AM-987 board. Plug one 34-pin flat cable onto each
connector at P1 and P2 on the AM-987 board. Be sure that the colored
stripe along the edge of each cable aligns with pin-1 of the connectors.
Once installed, simply lay the cables flat on the chassis floor toward the
front of the system and out of the way.
You might want to save yourself some neck cramps later on, by identifying the X-bus
cables now! Use a permanent marking pen or other such method, to label the opposite
ends of the cables that will plug into the connectors on the AM-174 Roadrunner board.
For example, the opposite end of the cable plugged onto the connector at P1 could be
labeled: P1---J2. And the opposite end of the cable plugged onto P2 could be labeled:
P2---J3. By using a positive means of identification now you will prevent cross-cabling
later, and possible damage to the AM-174 board!
PDI-00172-60, Rev. A02