Instruction Manual
24    RA51/52/53/54/55 INSTRUCTION MANUAL – 05 
4.2 Rear panel____________________________________________  
•
 Power supply connector 
The wires in the cable that attaches to this connector supply both power and NMEA interface 
data. Refer to Section 3.7.4 “ Power Cables “ and Section 3.9 “Connecting External 
Equipment to Display Unit “. 
‚
 Grounding terminal 
Use this terminal to connect grounding wire. Refer to Section 3.7.3 “Grounding wire”. 
ƒ
 Option connector 
Connect an NMEA data source, an external monitor, external buzzer or GYRO I/F here 
through an optional connector or using a junction box. Refer to Section 3.9 “Connecting 
External Equipment to Display Unit”. 
„
 Scanner connector 
This connector is for the cable that runs between the display and the scanner. 
Refer to 3.7 “Connecting cable “. 
4.3 Radar screen (Single screen) ____________________________
Ship’s position
EBL2
VRM2
Indicate soft key
3
1 
HU L 
1:58
+
RADAR OFF 
EBL1 
VRM1
EBL2 
VRM2
FL EBL2
FL VRM2
NEXT 
A
HOLD 
ZOOM 
OFF-C
LAT/LON 
 35°08.42N
139°02.53E
2 129.8° 
2 12.34NM
 0.23NM 
HDG 
 129.0 °T 
SPD 
 12.0 KT 
G  59 
S  AT 
F  AT 
ST1 
GZ  IN 
TK  15 S 
WP 
134.4 
°
 12.5NM 
+LAT/LON
35°08.42N
139°02.53E
1 129.8° 
1 12.3NM
Tune meter
Picture hold
Zoom 
Off-center 
Range 
Range ring interval
Display mode 
Heading angle 
Cruising speed 
Enlarging echo 
Guard zone 
Track 
Way point 
EBL1 
VRM1 
Pulse width 
Course error
Gain 
STC 
FTC 
Cross cursor
Cross cursor position 
(LAT/LON or Distance/Bearing)




