GENERAL INFORMATION
Page 4
Figure 3: J4N Circuit Board Layout
Item Description
K1
Terminal block for R4 Display power cable.
K2
Terminal block for R4 Navigation Sensor power and data cable.
K3
Terminal block for R4 Display signal cable.
K4
Terminal block for common external grounding of cable shields, if required.
K5
Terminal block for R4 Display front plug (Pilot Port).
K6
Terminal block for User Port 3.
K7
Auxiliary terminal block for User Port 3 Tx lines.
K8
Terminal block for User Port 2 (This port is Tx only).
K9
Auxiliary terminal block for User Port 2.
K10
Auxiliary terminal block for R4 Navigation Sensor System Port Tx lines.
K11
Terminal block for User Port 1.
K12
Auxiliary terminal block for User Port 1 Tx lines.
K13
Terminal block for speed log pulse output.
K14
Terminal block for external alarm acknowledge switch.
K15
Terminal block for alarm relay. ‘NC’ (normally closed) /’NO’ (normally open) refers to the
normally powered state of the relay under no-alarm conditions.
K16
Terminal block for 24V DC power. Dual terminals are available for re-distribution of power
in multi-system configurations.
JP1
Jumper point for connection of signal shields to the junction box chassis, if required. Per
default unpopulated (open).
RE1 Alarm
relay.
F1
1 Ampere fuse for R4 Navigation Sensor.
F2
2 Amperes fuse for R4 Display.
Table 1: J4N Circuit Board Components
Summary of Contents for 1000 R4
Page 18: ...MOUNTING Page 12 Figure 4 7 Panel mounting R4 Display Figure 4 8 R4 Display panel mounted ...
Page 79: ...TECHNICAL SPECIFICATIONS Page 11 ...
Page 80: ...TECHNICAL SPECIFICATIONS Page 12 APPENDIX A J4N SCHEMATIC ...
Page 81: ...TECHNICAL SPECIFICATIONS Page 13 APPENDIX B J4N PCA LAYOUT ...