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Introduction 25
CopperLink 1211E/1212E User Manual 4 • Operation
Introduction
Once the CL1212Es are properly installed, they should operate transparently. No user settings required. This
section describes reading the LED status monitors.
Before applying power to the CL1212E, please review “Connecting Power” on
page 19 to verify that the unit is
connected to the appropriate power source.
Front Panel LED Status Monitors
The CL1212E features six front panel LEDs that monitor power, the Ethernet signals, the Line connection,
and the remote/local setting. Figure 8 shows the front panel location of each LED. Table 5 on page 25
describes the LED functions.
Ethernet 0 LED
Line LED
Power LED
Remote LED
Local LED
1
Ethernet 1 LED
Figure 8. CL1212E front pan
Table 5. Front panel LED description
LED Status Description
Power Green The device is powered on.
Off The device is powered off.
Line Green The port is connected.
Blinking Green Data transceiving.
Off No valid link on this port.
Eth 0 and Eth 1 Green The port is connected.
a
a. Once the unit connects to a power source, the LED will
blink as the CL1212E automatically looks for the other
unit in the pair.
Blinking Green
Data transceiving.
Local Green The device acts in Local mode.
Off Local mode is off.
Remote Green The device acts in Remote mode.
Off Remote mode is off.
el