Operation Manual

Chapter 1: Get Acquainted
Connectors, Keys, and LEDs
11
TALK LED comes on when the talk function is on.
LOW BATTERY LED comes on when the battery is low.
The LEDs also have these functions:
• Battery gauge (see Figure 4 on page 16)
• Volume indicator for the TALK function
• Progress indicator for software updates
 : Starts a test.
 : Power key
 : Press  to use the headset to speak to the person at
the other end of the link. Press again to adjust the volume. To
turn off the talk function, hold down .
 Connector for the AC adapter. The LED is red when the battery
charges, and green when the battery is fully charged. The LED is
yellow if the battery will not charge. See “Charge the Battery”
on page 15.
 Micro-AB USB port: This USB port lets you connect the tester to a
PC so you can install software updates in the tester.
 Headset jack
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