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Power/pairing button, Leds – Measurement Computing BTH-1208LS-OEM User Manual

Page 12

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BTH-1208LS-OEM User's Guide

Functional Details

12

Power/pairing button

The power/pairing button has different functions depending on the power source of the device.

The term pairing refers to one function of the button – to put the device in pairing mode so it can establish an
association between the Bluetooth radio on the host device and the BTH-1208LS-OEM radio.

Button functions are listed in the table below.

Power/pairing button functions

Power Status

Button Functions

Battery powered

To power on the device, press and hold the button for 3 seconds. To enter pairing mode,
hold the button for an additional 2 seconds.

To remove the device from pairing mode, press and hold the button again for 2 seconds.

To power off the device when not in pairing mode, press and hold the button for 2 seconds

Powered by USB
charger/USB power
supply

To put the device in pairing mode when it is powered on, press and hold button for 2
seconds.

To remove the device from pairing mode, press and hold the button again for 2 seconds.

Powered by USB host
port or hub

The power/pairing button is disabled.

LEDs

The Power LED indicates the power status of the device. The Status LED indicates the communication status of
the device.

LEDs cannot be disabled. LED states are listed in the tables below.

Power and Status LED behavior

Power LED

Indication

Steady green

The device is powered by USB and the batteries are sufficiently charged or not installed.

Blinks continuously

Connected to USB port/host: the batteries are recharging (only if rechargeable batteries are
installed).

The device is not connected to a USB port: indicates battery power

The Power LED blinks alternately with the Status LED: the device is in pairing mode.

Off

Device is off.

Status LED

Indication

Steady green

Bluetooth or USB connection established

Blinks continuously

Communication with host computer over a Bluetooth or USB connection.

The Status LED blinks alternately with the Power LED: the device is in pairing mode.

Off

A Bluetooth or USB connection is not established