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Page 10 MNNCEKRKB1_0439
2.4 Second fu nction keys
Some keys (, , ) can be used to activate second functions if pressed simultaneously with other
keys.
For example,
means: press the key followed by the key, keeping pressed down.
The keys can be released in any order.
2.5 Dip switc h
The back of the keyboard has a set of dip-switches that are used to insert/remove the load of the RS485 lines
and block keyboard programming from the PC. Refer to § 3.1 - Video and telemetry lines, page 11, for further
information about inserting the line loads.
ON: load inserted
DIP4: load on Video line
OFF: load removed
ON: load insertedDIP3: load on Telemetry B line
OFF: load removed
ON: load inserted
DIP2: load on Telemetry A line
OFF: load removed
ON: update is possible
DIP1: internal firmware update
OFF: update is not possible