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In order to operate and remote control a number of SMP_QX amplifiers, the following steps must
be executed:
- Install the supplied SMP_QX operating software to your PC
- The communication between PC and SMP_QX device is done via RS485 interface
- Since a PC will not provide an RS485 interface, an optional USB-to-RS485
interface will be necessary.
- This DSM-RS interface may be obtained from BELL.
- Connect the interface to any free USB port of your PC
- The RS485 side of the interface (XLR m) will be connected to the RS485 socket on the
rear side of the SMP_QX amp (device).
- Should you need to bridge a long distance from PC to SMP_QX amp, use a high quality
balanced line XLR / XLR mic cable.
- In order to connect a any larger number of devices (up to 32 pcs), connect the RS485
Link socket of the 1.st device with the RS485 input socket of the 2.nd. device.... and so on.
- Please note, that the GND of the RS485 input socket (PIN1) is not connected to PIN1 of
the XLR-Link socket in order to avoid eventual ground loops (audible hum noise).
- If for reasons of poor communication a continuous connection of all RS485 GNDs should be
necessary, the RS485 GND switch of all linked devices must be switched to ‚ON'
Each one of the linked units must be given a separate ID number
(Please refer to the Interface Utility Menu (page 11)).
SMP_QX PC Software
SMP_QX PC Software
Starting the PC Software
Starting the PC Software
1.
23
Starting the PC software, your
computer will require the
COM Port,
the ID number (if only one
device is connected)
and the total number of con-
nected devices.
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