Simrad GC80 Compact MK2, User Manual

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INSTALLATION
49 988-12720-002
6.4 Grounding the units
All units in the GC80/85 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 (2.5 mm
2 ).
MASTER COMPASS DUAL MK2 CONTROL UNIT
6.5 DIP switch and jumper settings
GC80 and GC85 Gyro systems include several DIP switches and jumpers.
Most of these are factory set and should not be altered 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 to configure the Control panels
to match type of Gyro system (GC80 or GC85). In addition, 3 switches have
to be set if an external heading sensor is connected to the system.
Note! All DIP switch settings are read when the system is started. Any changes
made while the system is running will therefore not take effect until the
system is restarted.
For a complete list of DIP switch settings, refer to DIP SWITCH SETTINGS ,
page 113.
Activating the GC80 or GC85 Control unit
When the Gyro system is shipped from factory, all DIP switches in both
Master compass Control panels are set as a standard GC80 system.
The GC80/85 Dual system includes 2 SCC boards, 1 for each Master
compass. The boards are located as shown in the figure on the next page.
If the system is a high speed system (GC85), DIP switch no.2 on S1 on both
SCC boards has to be set to identify the system as a GC85 system.