Product: VRM-A1427

The VRM-A1427 is a 6U size CompactPCI board that supports full HotSwap and provides digital I/O functions for DC12 to 24V. The 64 input and 64 output channels are all photo-coupler isolated for improved noise resistance, 8 input channels can be used for interrupt requests to the CPU, and either the on-off transition or off-on transition of digital input can be set as the interrupt trigger for each channel, built-in digital filter for input prevents malfunctions due to chattering and time constant of the digital filter is programmable using software and can be set for every 16 channels.

Features:

Input: Number of channels:64channels (common for every 8 channels x 8)
Isolation method: photo-coupler isolation ( anode common)
Input resistance: Apx. 3k¿
Applied voltage: DC12 to 24V
Input current: Apx. 7.6mA (for DC24V application)
Withstanding voltage: AC1500V for one minute
Turn-on time: Typ 3.4µsec.
Turn-off time: 36µsec typ. 16 points (common: 2 independent inputs for every 8 points)
Output: Number of channels: 64 channels (common or every 8 channels x 8)
Protection circuitry Diode for protection against reverse voltage applications
Isolation method: photo-coupler isolation open collector output (emitter common)
Rated applied voltage: DC12 to 24V
Absolute maximum applied voltage: DC50V
Maximum load current: 50mA
Output saturation voltage: 1.2V (typ)
Withstanding voltage: AC1500V for one minute
Protection circuitry: Diode for protection against reverse voltage application
Turn-on time: 1.7µsec typ.
Turn-off time: 330µsec typ.
Bus interface: Bus: 33MHz CompactPCI bus
Data bus width: 32 bit
Space required: contiguous 64Bytes in PCI I/O space
Interrupt: line INTA
Interrupt trigger: Digital input (DIN 0 to 7) change-of-state (edge polarity is programmable)
Power requirements: DC5V+5% (supplied by rack, Typ. 0.95A
Board size: 6U single slot width 160mm x 233.35mm x 1.6mm

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