Mounting the Assembled Adapters on the I/O Base

Overview

This section gives guidelines, safety precautions and a procedure for mounting the assembled processor and option adapter on an I/O base.

Connection Points

The assembled adapters connect with the I/O base at these seven points.

Two plastic snaps on the front of the option adapter fit into two slots on the front of the I/O base.
The plastic snap extensions on the two sides of the option adapter fit into the two slots on the sides of the I/O base.
The 12-pin ATI connectors on the center of the back walls of the two units mate together.
The plastic stirrup on the back of the option adapter clips onto the bottom of the I/O base.

No Tools Required

DANGER

RISK OF ELECTRICAL SHOCK

Make sure that the I/O base is not under power when it does not have an adapter mounted on it. Electrical circuitry on the I/O base may be exposed when a Momentum adapter is not mounted.

To make sure that power is not present, do not insert the wiring connectors to the I/O base until after the adapter has been mounted.

Failure to follow these instructions will result in death or serious injury.

The components can be snapped together by hand; no assembly tools are required. A flat-head screw driver is required to disassemble the unit.

Procedure

Follow the steps in the table below to mount the assembly on an I/O base

Step	Action
1	Make sure that the I/O base is not under power when you assemble the module.
2	Align the four plastic snap extensions (on the front and sides of the option adapter) with the slots on the I/O base. The 12-pin ATI connectors will automatically line up when the units are in this position. The devices should be oriented such that their communication ports are facing out on the back side of the assembly.
3	Push the assembled adapters onto the base, gently pressing the locking tabs inward. Snap #1 shown in the illustration below will not align properly with the mating slot in the I/O base unless the option adapter is placed straight onto the base. Do not attach just one latch and rotate the option adapter onto the I/O base. Result: The locking tabs on each side of the option adapter slide inside the I/O base and out through the locking slot. The 12-pin ATI connectors on the two units are mated to each other in the process.
4	Apply slight pressure to the top of the stirrup on the back of the option adapter so that it snaps into place on the bottom of the I/O base.