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links at: http://www.emx.net.au/super4usbrelay.htm
hub powered, modular relay control board.
Relays (4 x): 5 Amp 30VDC, 5Amp 250V AC
Sealed omron mechanical relays
Standard FTDI USB module (dlls for most OSs)
Power on LED, relay indicator LEDs
The super4 USB relay board is driven over USB directly (not
virtual com port). Each board is uniquely identified via its'
serial number string, this can be changed using TCTECs
RelayMapper application, making replacement of boards easy and
programming simple to understand.
User Manual (pdf)
Super4 USB Relay Module Windows Software
links at: http://www.emx.net.au/windowssw.htm
USB Relay Module Linux Software
links at: http://www.emx.net.au/super4linux.htm
Asheboro Fire Department
I am wanting to sound alarms for secondary
dispatch(911 calls). We receive call information
through email and will use Microsoft Outlook to make
a rule to print the message and activate a relay
through usb(an idea) to sound external alarms
through-out the fire stations. Does this sound like
it will work with the Super4 USB Relay Module, if
so, how difficult will it be to setup programming?
The Microsoft outlook rule can be set to
'start application', if the email meets the specified
The application that is started can be a
batch file called 'sound_alarm.bat' with the
following line in it:
The above example will switch on relay
one, of the relay board called 'alarm' for 10
In this case, relayset.exe is located in
I tested this example on Microsoft outlook
Let me know if I can help further.
Richard van Wyk
TCTEC Pty LTd
Question about the Super4. Does the
board/switch hold it's state during a power
disconnect. For example:
Port 1 = On
Port 2 = Off
Port 3 = On
Port 4 = On
Will these states remain when power is
disconnected from the board or will we need to
manage the state after accidental power disconnects?
The relays are non-latching, so when power
is lost they default to the off (open) position.
The C source code for lrelayset.exe is on
our webstite http://www.emx.net.au/page426.htm
It uses the ftdi linux library:http:
Alternatively,rather than use the
libftd2xx.so library, a compilable C - library
is available to interface the FT232RL chip directly.
This has been used to control the super4
under Debian for example.
Note: The super4 uses the FT232RL serial to
USB converter in 'bit-bang' mode.
Please let me know if I you any further
Richard van Wyk
TCTEC Pty Ltd
If you need additional support on the above
product, and you can't find the information you need in the
documentation, then please contact support at the address
This product is from: TCTEC Pty Ltd
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