
8
Figure 5: Master and Slave keyboard connection
NOTE: Connect the DOME1 port of all slave keyboards to the DOME2 port of the master keyboard and set the DIP SW 1 and 2 as the figure above.
2.4 Configuration of Master and Slave Keyboards
STP AWG #22
Power 24VAC
BNC
Slave K/B control connection
Rear
Master
Keyboard controller
DIP SW 1 = ON
DIP SW 2 = ON
DIP SW 8 = OFF
DOME 2: Protocol KBDDUP
J-Box Dome
RS-485(+) DOME 1 + RX+ (TX+)
RS-485(-) DOME 1 - RX- (RX-)
Rear
Slave3
Keyboard controller
DIP SW 1 = ON
DIP SW 8 = ON
Slave1
Keyboard controller
DIP SW 1 = OFF
DIP SW 8 = ON
Rear
Rear
Slave2
Keyboard controller
DIP SW 1 = OFF
DIP SW 8 = ON
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