Nokia 6800 Series, 7000 Series Jumper and Potentiometer, Jumpers and, Name, Function

SpecificationChapter 10: VSE-6802 Serial Equalizing Distribution Amplifier Module

Jumper and Potentiometer

Jumpers and	Name	Function
Potentiometer
J1	Auto	This jumper provides the
	Reclock/	selection of the reclocking mode.
	270MHz	In the Auto Reclock mode, the re-
		clocking circuit locks the input
		data to one of the five rates
		automatically. In 270 MHz mode,
		the reclocking circuit locks the
		input data to 270 MHz directly,
		which reduces the re-locking
		time.
J2	No-lock	When the input data is not locked
	Disable	and J2 is set at the No Lock
		position, the contact closure port
		will not report the no-locking
		alarm.
J3	No-data	When the input data is not
	Disable	present and J3 is set at the
		N_DATA position, the contact
		closure circuit will not report the
		alarm of the data absence out.
R2 (pot)	Threshold	This pot is designed for the
	Level	adjustment of the input data
		threshold level in the input level
		detect circuit. Used to eliminate
		the maximum cable length. (The
		shorter the cable, the less jitter).

6800/7000 Series - Distribution and Routing Products Installation and Operation Manual 101