metrotek Bercut-ETL, Operating Manual

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10 Overview
•
2 — layer 2 loopback;
•
3 — layer 3 loopback;
• 1+3 — layer 4 loopback.
For more details see section 4.
Link speed indicators
Table 3.1. Speed LEDs
Speed LED LEDs color
10 Mbit/s 100 and 1000 green
100 Mbit/s 100 green
1000 Mbit/s 1000 green
State LEDs
LINK — link state:
•
green — connection at physical layer is established;
•
off — no connection.
ACT — data reception/transmission state:
• green — data is being received/transmitted at the moment;
•
off — no data is being received or transmitted at the moment.
FDX — Ethernet interface state:
• green — full-duplex connection is established;
• off — half-duplex connection is established.
Power — external power supply (indicator is located in the left bottom corner
of front panel):
•
green — power supply unit is plugged in;
•
red — device malfunction.
— the button for loopback mode control. To switch between layers 1, 2,
3, 4 or turn loopback off, press this button as many time as needed.
Bercut-ETL. Operating manual