Nokia 6800 Series, 7000 Series operation manual Aperr

Controls, Indicators, and Jumpers Chapter 3: EDH-6800-2 EDH Detection/Insertion Serial Distribution Amplifier Module

LED	Description
Alarm	Alarm indication.
	This LED lights when errors are detected in the input
	digital video data. The type of error that triggers this LED is
	configured by the FF/AP jumper.
AP_ERR	Active Picture CRC Error Indication (see page 30).
	The Active Picture Error LED lights when input digital
	video errors are detected only in the active picture region.
FF_Err	Full field crc error indication.
	The Full Field Error LED lights when input digital video
	errors are detected anywhere in the field, including AP,
	ANC, vertical blanking interval, and horizontal blanking
	interval regions.
CSUM_Err	Checksum error indication.
	The Checksum Error LED lights to indicate an input EDH
	packet checksum error.
D18	Service-micro controller status indication (normally off).
	The Service LED blinks when the module is powered up,
	but remains off during normal operation.
	If the LED is continuously on, or blinking, there is the
	possibility of hardware failure. The LED remains on when
	the Service switch (SW2) is pressed.

6800/7000 Series - Distribution and Routing Products Installation and Operation Manual 29