Certify Fiber Cabling
Connectors, Keys, and LEDs
135
PASS LED comes on when a test passes.
TEST LED comes on during a test and when you manually turn
on one of the output ports (
).
FAIL LED comes on when a test fails.
TALK LED comes on when the talk function is on. The LED
flashes until the main tester accepts the request to talk.
TONE LED flashes if you press when a main tester is not
connected to the remote or is in Far End Source mode.
LOW BATTERY LED comes on when the battery is low.
The LEDs also have these functions:
• Battery gauge (see Figure 1 on page 17)
• Volume indicator for the TALK function
• Progress indicator for software updates
single-mode output port with removable connector adapter
and dust cap. This port transmits optical signals for loss and
length measurements.
The LED below the output port is red when the port transmits
1310 nm and green for 1550 nm.
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