FBT QUBE SP27 - Manual (Page 25)

Remote Control Interface Operation
This interface is fitted as standard to all units and is accessed via the 9-pin D-type connector on the rear of the
unit. Note that to connect to a computer's COM (serial) port correctly, a one-to-one cable must be used, and
NOT a 'null modem' cable. A 'null modem' cable has the 'transmit' and 'receive' wires swapped over and will
not work.
The RS232 connection is suitable for distances of about a maximum of 25 feet between the PC and the unit. If
you experience problems with the connections, consider
· selecting a slower baud rate
· selecting the 'Use Acknowledge Cmd' option in AudioCore (see the Remote Menu > RS232
Configuration window)
· running the unit via the RS485 interface
Note than only one unit at a time may be connected to the computer via this interface. Additional units may be
'daisy-chained' via the RS485 connections from the back of the first one (it acting as a converter for them), but
their RS232 ports are not used.
A typical interface set-up might involve running an RS232 link from laptop or a desktop computer to a SP27
unit set up as a master unit. The diagram below shows this method of connection, the required menu options
are also given. Note that the RS232 cable must be a 1-1 connection type, NOT a null modem cable (which
has connections crossed internally).
RS232 Connection (Single Unit)
RS232 Interface
Loading New Software via a PC
The unit's internal software may be updated via the RS232 port , one unit at a time. We recommend
disconnecting all other devices when updating the software.
The unit's interface must be set as RS232 Master on ID1 for the PC loader program to recognise it and allow
the update to be sent.
Download the latest version of the loader program and the unit software and follow the instructions included
with this zip file. An RSS feed is available on the website to ensure immediate notification of software
releases.
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