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The 8640 USB I/O PCB is used to interface with various Digital and Analog Inputs/Outputs, and is designed to interface with host computers via the USB bus.
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Benefits:
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Eliminates "special" I/O chassis by distributing I/O to each device.
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Logistics support is simplified by device commonality.
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USB interface simplifies system design.
Key Features:
- Single-chip integrated USB transceiver, Serial Interface Engine and Enhanced Processor with 8K of RAM for code, data, and control/status information.
- Compliant with USB 1.1 and 2.0 (Full Speed Device).
- I/O:
- 4 x 12-bit Analog to Digital converters
- 4 x 12-bit Digital to Analog converters
- 24 high current Discrete Outputs
- 32 Discrete Inputs (D/I)
- 32 Discrete Inputs/Outputs (DI/O)
- 4 optical encoder inputs
- Optional 128K of SRAM memory on board may be used by the 8051 to access code and/or data.
- External power jack is mounted on the board and used if additional power is needed.
I / O:
4 x 12-bit Analog to Digital Converters (ADC)
- Each can convert an analog signal to a 12-bit signed digital word.
- Updated at 100kSPS maximum rate.
- Input voltages available from -10V to +10V.
4 x 12-bit Digital to Analog Converters (DAC)
- Each can convert 12-bits of unsigned parallel digital data to an analog signal.
- Updated at 100kHz maximum rate.
- Output voltages available from -10V to +10V, with an output current rating of 5mA maximum.
24 high current Discrete Outputs (DO)
- Each capable of sinking 100mA maximum.
- User selectable voltages (+5, +15, +28 VDC) in groups of eight.
- Open collector outputs.
32 Discrete Inputs (DI)
- De-bounce circuitry provided for switch inputs.
- Open (float) or grounded inputs
32 Discrete Inputs/Outputs (DI/O)
- User programmable inputs or outputs, in groups of eight.
- Inputs range from 0 to 5.0V
- Outputs range from 0 to 3.3V
- 24mA maximum input/output current
4 Optical Encoder input ports
- Each can convert encoder inputs (channel A and B) to up and down clocks.
- Decoded on board using the USB device
2 serial ports
- Electrically compatible with TIA/EIA-232 and TIA/EIA-562 standards.
Specifications:
USB Slave: Full Speed Device
USB Data Transfer: 12 Mb/sec
USB Addressing: 8-bit (127 maximum devices)
Board Access Time: 12 MHz maximum
Power Requirements: +5 VDC @ 3.00 A
± 15 VDC @ 0.125 A;
External power supply must be used.
Temperature Range: 0 to 45 C operating
-20 to 85 C storage
Relative Humidity Range: 20% to 80% non-condensing
Cooling: Convection
Dimensions:
4.50" x 3.5" x 0.093"
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