Juniper Systems I-O module Allegro 2 User Manual

I/O module

replacement instructions

P/N: 24677.00 Copyright August 2014, Juniper Systems, Inc.
Information is subject to change without notice. Juniper
Systems and Allegro 2 are trademarks of Juniper Systems, Inc.

Contents of I/O Module Replacement Kit

The Allegro 2 I/O Module replacement kit
includes the following items:

 Allegro 2 I/O module
 Two replacement 4-40 x 11/16 screws
 Two replacement M2 x 6 screws
 Four replacement #2-28 x .25 screws
 Screwdriver

Removing the I/O module

1. Remove the hand strap.

2. Remove the four screws that hold on the
bottom bumper and remove the bumper.

3. Using the provided screwdriver, loosen four
screws to remove the battery door.

4. Remove the battery.

5. Remove the four screws from the sides of
the module. See Figure 1.

Figure 1

2. Place the tabs of the new module in the
grooves of the case. See Figure 3.

Figure 3

Tabs on module

Grooves in case

3. Align the pins with the black connector on
the main board using a slight side-to-side
rocking motion.

4. Firmly push down on board above the
pins as shown, NOT on the plastic. See
Figure 4. Push until the pins seat in the
connector and there is no gap between
the module and the Allegro 2.

CAUTION: If the module does not push in with

rm pressure, STOP. Remove the module and

re-inspect the pins to ensure they are not
damaged.

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6. Carefully pull straight back to remove the
module from the Allegro 2.

Installing the new I/O module

1. Inspect new module to ensure that the
pins that go into the Allegro 2 are straight
and that the rubber gasket around the
pins is in place as shown. See Figure 2.

Figure 2

CAUTION: if the pins are not straight, do not
attempt to straighten them or use the module.
Contact a service center for a replacement.

Figure 4

5. Insert four provided screws—two M2 and

two 4-40—into the marked holes.

6. Tighten screws with the provided
screwdriver. Ensure they are snug, but do
not force them.

7. Replace the battery door.

8. Replace the bumper using the provided
screws.

9. Replace the hand strap.