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We recommend the KK Systems USB-485 adapter for simple conversion to
This device is powered via the USB connection and so has the ability to drive long
cable runs reliably. This device is available from us, or directly from KK Systems
at www.kk-systems.com.
standard – this has to be adapted to an XLR connection.
To prevent voiding the warranty on the converter, we'd recommend not cutting
the 9-pin off, but rather make up an adapter – the pin out for this is below.
9-pin D type
Pin 4
Pins 3+7
(Brown + Orange)
Pins 8+2
(Black + Yellow)
Connect to the first amplifier via its RS485 input socket. To connect to further
amplifiers, just use standard microphone leads and daisy chain in to out. Note
that the RS485 Phoenix connector is wired in parallel with the RS485 XLRs, so
these may be used instead – come out of the first amplifier on the Phoenix and
simply parallel the three wires to the next device, and so on down the chain.
We recommend that you use screened cable for these connections and be sure to
ground one end of the screen. As the RS485 drivers used are "quarter load"
devices, the maximum number of nodes that can be connected together is 128,
and the maximum theoretical cable length from the first node to the last node is
1000 metres. This distance will be affected by the cable quality and to some
extent the operating environment.
There is no need to set ID numbers or worry about master/slave settings or baud
rates – the baud rate is preset and all amplifiers contain a serial number chip with
a unique ID, which is used to set the comms ID. ICORE searches for all
connected devices automatically. Once connected and all devices have been
found, it will continuously monitor any connected
Breakout Operator's Manual
RS485.
The converter comes with a 9-pin D-type fitted as
XLR
1
2
3
Phoenix
1
2
3
Ti Series
amplifiers.
Page 15
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