Input/Output Channels 32 Optically Coupled Inputs: Voltage-Sense or Contact-Sense modes are available with input voltages ranging from 5 to 125VDC (5V, 12V, 24V, 28V, 48V, 125V depending on manufacturing options). 32 Optically Coupled Outputs: Provides 300ma sink current output, 50 V maximum output voltage, supports open-collector design.Quarantine performance Input/output and VME backplane quarantine: continuous quarantine voltage 1 kV, pulse quarantine voltage 35 kV. Quarantine between channels: maximum continuous voltage of 500 V ensures the anti-interference ability of signal transmission.Data transmission and interface data width: support 8-bit, 16-bit and 32-bit data transmission. Address mode: A16 or A24 standard data/short I/O addressing compatible. Bus specification: Conforms to VMEbus standards ANSI/IEEE STD1014-1987, IEC821 and 297, supports A24/A16, D32/D16/D08 (EO) data modes.Built-in Test Capabilities Online and Offline Test: Enter the test mode by setting the Control and Status Register (CSR). The input port can read the on-board test register data. The output port supports disabling the actual output for interference-free testing. Test register address: Same as the input/output data port address, simplifying the test flow. Physical and electrical characteristics Input quarantine resistance: 10MΩ minimum. Contact debounce: user programmable debounce time (0, 0.256ms to 16.384ms). Operating temperature: -40 ° C to + 85 ° C (industrial version).Other functions Voltage detection power supply: Contact detection mode can be powered by external voltage or + 5V inside VME (only available with 5V input option). SIP Resistor: Contact detection requires the user to install a SIP resistor.