Grounding The Units; Dip-Switch And Jumper Settings; Activating The Control Unit For Gc80 Or Gc85 System - Simrad GC80 Instruction Manual

Simrad GC80/GC85 Dual Gyro Compass

5.4 Grounding the units

5.5 Dip-switch and jumper settings

Note!
48
All units in the GC80/GC85 system should have a proper
ground connection from the unit's ground terminal.
The wires should be as short as possible and have a cross section
of at least AWG13 (2.5mm
MASTER COMPASS
GC80 and GC85 gyro systems include several dip switches and
jumpers. Most of these are factory set and should not be
alternated by the user.
5 switches in the Control unit must however be set when
installing the GC80/85 system. 2 switches have to be set for
configuring the Control panels to match type of gyro system
(GC80 or GC85), while 3 switches have to be set if an external
heading sensor is connected to the system.
These dip switch settings are read when the system is started.
Any changes when the system is running will therefore not take
affect before the system is restarted.
For a complete list of dip switch settings, refer to DIP SWITCH
SETTINGS, page 101.
Activating the control unit for GC80 or
GC85 system
When the gyro system is shipped from factory, all dip switches
in both master compass control panels are set as for a standard
GC80 system.
The GC80/85 Dual system includes 2 SCC boards, one for each
master compass. The boards are located as shown on the figure
on page 49.
If the system is a high speed system (GC85), dip switch no.2 on
S1 on both SCC boards has to be changed to identify the system
as a GC85 system.
2
).
DUAL CONTROL UNIT
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