Furuno FAR-2157-BB Connection of Sub-display, Port Conventional remote display FAR-2157

Wiring WAGO connector Push down.

Terminal opener

Fastening coaxial cable

Fasten shield by clamp.

Wire

Twist

Procedure

WAGO connector

Taping Fasten conductor with screw.

NOTICE

1.Twist core.

2.Insert terminal opener as shown and push down.

3.Insert core into hole.

4.Release terminal opener.

5.Pull wire to confirm that it is firmly in place.

Fasten BARE conductor. Do not use crimp-on lug, to prevent increased contact resistance.

Connection of Sub-display

A conventional remote display and/or FAR-2xx7 series radar can be connected to J617 (FULL- LOG) and J618 (SEMI-LOG) in the processor unit as a sub-display. However, the control for GAIN and STC are different depending on J617 and J618. Refer to the table to connect sub-displays.

Port		Conventional remote display	FAR-2157
J617(FULL-	Overall gain	Even if input video level is adjusted	The gain is 8 dB lower than that
LOG)GAIN		to 4 Vp-p, the gain is 8 db lower	on the master radar.
and STC are		than that on the master radar.
not con-
	GAIN control	The GAIN control is effective.	The GAIN control has no effect.
trolled. Video
	STC control	The STC control is effective.	The STC control has no effect.
signal for
conventional
sub display is
output.
J618(SEMI-	Overall gain	When input video level is adjusted	The gain is almost same as that
LOG)Video		to 4 Vp-p, the gain becomes the	on the master radar.
signal of		same as that on the master radar.
main radar
	GAIN control	The GAIN control is effective.	The GAIN control has no effect.
controlled
	STC control	The STC control changes the radar	The STC control has no effect.
GAIN and
		image, however STC is doubly
STC is
		applied, resulting in improper radar
output.
		picture. Therefore, it is not recom-
		mended to use this port.

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