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2 Technical Features
Pin Function
3, 6 DATA+
4, 5 DATA-
1, 8 Ground
2, 7 n/c
Amplifiers with a RS–485 interface are equipped with two parallel ports, PORT1 and PORT2 (RJ–45). To
establish a RS–485 bus topology, PORT1 should be used as an input and PORT2 as the output to the next
amplifier in the chain.
Two LED indicators are active while receiving data (red=RX) and transmitting data (green=TX) over RS–
485.
2.12 Address-IDs
To connect the amplifiers to the SXL all amplifiers must have a unique address. The address is selected on
the DIP switch at the rear panel of the amplifier.
Multichannel amplifiers receive several consecutive IDs. Every amplifier module consisting of two channels
gets one ID.
Caution
After an address change the amplifier must be disconnected from the data port connection and
re-powered to activate the changes!
DIP Switch settings for 2-Channel-Amplifiers:
Address SW1 SW2 SW3
ID 1 ON ON ON
ID 2 OFF ON ON
ID 3 ON OFF ON
ID 4 OFF OFF ON
ID 5 ON ON OFF
ID 6 OFF ON OFF
ID 7 ON OFF OFF
ID 8 OFF OFF OFF
DIP Switch settings for 4-Channel-Amplifiers:
Address SW1 SW2
ID 1+2 OFF OFF
ID 3+4 ON OFF
ID 5+6 OFF ON
ID 7+8 ON ON
DIP Switch settings for 8-Channel-Amplifiers:
Address SW1 SW2
ID 1+2+3+4 OFF OFF
ID 5+6+7+8 ON ON
c
2016 Bittner Audio Int. GmbH