Operation; Led Status Monitors - Patton electronics 1206RC User Manual

Synchronous x.21 modem eliminator: rack mount card
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Once you have configured the Model 1206RC and connected the
cables to host A and host B, you are ready to operate the unit. This
section describes the LED status monitors and power-up procedure.

5.1 LED STATUS MONITORS

The Model 1206RC features 9 front panel status LEDs that indicate
the condition of the Model 1206RC and the two ports, A & B (see
Figure 9, above):
Figure 9. Model 1206RC front panel, showing LED indicators.
• The green "PWR" LED glows when power is applied to the Model
1206RC through its mid-plane chassis connection.
• Two "TD" LEDs monitor the status of each port's data transmission.
The red LED glows when the signal is in an idle (negative) state.
The green LED glows when the signal is in a transmitting (positive)
state. Both LEDs will normally blink when data transmission is
occurring.
• Two "CD" LEDs monitor the status of each port's carrier detect
signal. The red LED glows when the receive channel is not active
(negative condition). The green LED glows when the receive
channel is active (positive condition).

5.0 OPERATION

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