Patton electronic 1052 Dsl Link, framer link is up, signifying that the link across the DSL span

5.0 OPERATION

Once the Model 1052 is properly configured and installed, it should oper- ate transparently. This sections describes power-up, reading the LED status monitors, and using the built-in loopback test modes.

5.1 POWER-UP

Before applying power to the Model 1052, read section 4.3, “Power Con- nection” on page 13 to ensure that the unit is connected to the appropri- ate power source.

5.2 LED STATUS MONITORS

The Model 1052 features five side panel LEDs (see Figure 7). Table 2 describes the function of each LED.

	Figure 7. Model 1052 side panel LEDs
	Table 2: LED descriptions
LED	Description
TXD	(Active: Green) When lit, indicates data transmission.
RXD	(Active: Green) When lit, indicates data transmission.
DSL LINK	(Active: Green) When lit, indicates that the end-to-end DSL
	framer link is up, signifying that the link across the DSL span
	is active. The DSL Link LED is off when the link is down.
NS	(Active: Yellow) When the No Signal LED is lit, it indicates
	that the local Model 1052 is not connected with the remote
	Model 1052
ER	(Active: Red) Flashing red indicates that there are CRC errors
	on the DSL (framer) side if the DSL Link is active. ER flashes
	once to indicate a CRC error during normal operation

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