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Hardware
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24.7. Auxiliary connector ports
All FireSpy devices have one or more auxiliary connector ports.
The signals on these ports are:
·
A number of aux signals
·
Ground (for aux signals and Power if available)
·
Power (not on IDC connector)
The aux signals are all open drain CMOS output with a pullup resister to 3.3 Volts. To prevent a short it is
best to only pull these signals low and allowing the internal (or an extra external pullup) resistor to pull the
signal high.
When you are sure some aux signal is only used as input, it may be pulled high actively, but it may never
be pulled higher then 3.7 Volts.
The current that may flow into an aux pin when driven low by the FireSpy is maximum 12 mA.
All aux signals can be controlled by the Scriptor and for some of the aux signals special functions can be
selected.
See the description of the 'External Ports' tab of the 'Settings Dialog' for the possible functions.
The Voltage of the Power signal and the current that can be drawn from it is FireSpy type dependant.
The table below shows the Voltage and the maximum current that can be drawn from the Power pin.
FireSpy type
Voltage
Max current all ports together
FireSpy400b
5 +- 10%
100mA (SUBD port)
FireSpy800
5 +- 10%
100mA (SUBD port)
FireSpy410b
12 +- 10%
100mA (SUBD port)
FireSpy810
12 +- 10%
100mA (SUBD port)
FireSpy381x
12 +- 10%
200mA (SUBD and VHDCI ports together)
FireSpy385x
12 +- 10%
200mA (VHDCI port)
Note that the Power on the VHDCI connector can be switched off. See the General tab of the Settings
Dialog.
Each aux port can be configured to have an active /TriggerOut pin. (This can be configured in the
settingsdialog.) When the recorder is triggered, this pin will be active low for a duration of about 160nS.
24.7.1. The IDC connector
The 20 pin IDC connector is available for the FireSpy PCI cards.
It has 10 aux signals.
This 20 pins connector has the following signals:
Pin 1
aux0
Pin 2
Ground
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