Chapter 8: Installation 161
HSB™ High Speed Bus
The High Speed Bus (HSB) provides extremely rapid transfer of data between
master and repeater displays. Any two devices that conform to the HSB
standard can be inter-connected. With an HSB and a SeaTalk connection most
data available can be controlled and displayed by either unit (Guard zones
cannot be viewed or controlled on the chartplotter display, nor on a repeater
display that is not directly connected to a scanner. Likewise, radar timed
transmission is not available on a repeater display).
For example, you could connect an HSB Radar display and an HSB
Chartplotter display, to enable you to display and control both radar and chart
data on either or both displays. The HSB Series displays allow you to select
either type of data for display, or display both types at the same time, in half-
screen windows.
When two displays are used, the following functionality will be obtained at
each display (assuming a radar scanner is connected to Display 1)
Scanner Display 1 Display 2
Connected Type Functionality Type Functionality
Yes RL70 Radar master RL70 Radar repeater
Yes RL70 Radar master RC520/ Chart master
Chart repeater RL70RC Radar repeater
Yes RL70RC Radar master RL70 Radar repeater
Chart master Chart repeater
Yes RL70RC Radar master RC520/ Chart master
Chart master R70RC Chart repeater (disp. 1)
Chart repeater (disp.2) Radar repeater
No RC520 Chart master RL70 Chart repeater
No RC520 Chart Master RC520/ Chart master
Chart repeater (disp. 2) RL70RC Chart repeater (disp. 1)
Any HSB Series display can be combined with the 7" LCD display to create
two display systems.
HSB Connection
An In/Out connector is provided for an HSB series repeater or chartplotter
display.
Note: The HSB cables are fitted with ferrite clamps at each end to ensure EMC
conformance. The cables are available in lengths of 1, 3, 6, 10 and 20 m.
HSB
High Speed Bus
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