Leds, Loopback control (l), Link speed led indicators – EXFO ETS-1000L User Manual
Page 8: Link
Introducing the ETS-1000L
2
ETS-1000L
Overview
LEDs
The green color of LEDs corresponds to a loopback layer.
1 — physical layer (1)
2 — data link layer (2)
3 — network layer (3)
1+3 — transport layer (4)
Loopback Control (L)
This button is available for loopback mode control. To switch between
layers 1, 2, 3, 4 or turn loopback off, press this button till required selection
is made.
Link Speed LED Indicators
LED indicators represents link speed.
Link
LED indicators represents link state.
Speed
LED
LED Colors
10 Mbit/s
100 and 1000
green
100 Mbit/s
100
green
1000 Mbit/s
1000
green
Link State
LED Colors
Connection is established
green
No connection established
off
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