HP Engage Go 13.5 Maintenance and Service Guide - Page 23

Attaching an optional fingerprint reader to the I/O connectivity base

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4. Adjust the voltage select switch behind each serial port to the setting that you want. 5. Place the bottom plate onto the I/O connectivity base (1), and then secure the plate to the I/O connectivity base with the five screws (2). 6. Reconnect the I/O connectivity base power cord and peripheral devices. Attaching an optional fingerprint reader to the I/O connectivity base You can use the optional fingerprint reader as a standalone device, or you can attach it to the I/O connectivity base. To connect an optional fingerprint reader to the I/O connectivity base. NOTE: You can attach the fingerprint reader to either side of the I/O connectivity base, but if you attach it to the left side of the I/O connectivity base, the fingerprint reader covers the microSD slot and the headset jack on the I/O connectivity base. 1. Turn off the mobile system properly through the operating system, and turn off any external devices. 2. Disconnect the power cords from the mobile system and I/O connectivity base. IMPORTANT: Regardless of the power state, voltage is always present on the system board as long as the system is plugged into an active AC outlet. You must disconnect the power cord and wait approximately 30 seconds for the power to drain to avoid damage to the internal components. 16 Chapter 2 Hardware setup

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4.
Adjust the voltage select switch behind each serial port to the setting that you want.
5.
Place the bottom plate onto the I/O connectivity base
(1)
, and then secure the plate to the I/O
connectivity base with the five screws
(2)
.
6.
Reconnect the I/O connectivity base power cord and peripheral devices.
Attaching an optional fingerprint reader to the I/O connectivity
base
You can use the optional fingerprint reader as a standalone device, or you can attach it to the I/O
connectivity base.
To connect an optional fingerprint reader to the I/O connectivity base.
NOTE:
You can attach the fingerprint reader to either side of the I/O connectivity base, but if you
attach it to the left side of the I/O connectivity base, the fingerprint reader covers the microSD slot and
the headset jack on the I/O connectivity base.
1.
Turn off the mobile system properly through the operating system, and turn off any external
devices.
2.
Disconnect the power cords from the mobile system and I/O connectivity base.
IMPORTANT:
Regardless of the power state, voltage is always present on the system board as
long as the system is plugged into an active AC outlet. You must disconnect the power cord and
wait approximately 30 seconds for the power to drain to avoid damage to the internal components.
16
Chapter 2
Hardware setup