VMEbus Boards AVME9440-i Isolated Digital I/O (16 inputs and 16 outputs) These boards provide an economical method for isolating and interfacing digital I/O signals to the VMEbus. Built-in optical relays eliminate the expense of external relay panels and simplify installations. The These digital I/O boards provide isolation between individual channels and from the VMEbus for maximum protection. outputs can control valves, switch counters, mechanical or optical relays, indicator lamps and more. Power: Specifications +5V DC (±5%): 1.0A typical. On-board relays isolate all inputs and outputs from Digital Inputs +12V DC: 0.0mA (not used). Points per board: 16. each other and from the VMEbus for protection against Connectors: transients from ground loops and pick-up. Input voltage range (jumper-selectable): P1: 96 pin 603-2-IEC class 2. 4 to 25V DC or 20 to 55V DC. P2: not used. Selectable input threshold voltages let the user adapt P3, P4: Panduit No. 100-532-053;Type B male Input threshold: the input points to a variety of applications including connectors, rows A and B equipped, even 4V DC maximum (4 to 25V range), pins only (32 pins total). contact closures, alarm trips, switches, and power supply 20V DC maximum (20 to 55V range). on/off monitoring. Input current: VME Compliance 18.4mA DC typical @ 25V (4 to 25V range), Meets VME Specifications per revision C.1 dated Debounce circuitry offers a selectable time delay to 4.7mA DC typical @ 55V (20 to 55V range). October 1985 and IEC 821-1987 eliminate false signals resulting from contact bounce Input debounce: Jumper-selectable ranges. 7 to 8µS, Data transfer bus: A24/A16:D16/D08 (EO) DTB slave. commonly experienced with mechanical relays and 336 to 384µS, 672 to 768µS, 1.344 to 1.536mS. Address modifier codes: 29H, 2DH, 39H, 3DH. switches. Input response time: 1µS typical (excludes debounce). Memory map: standard or short address space occupying VMEbus access time: 580nS typical (all registers; measured 1K byte. Features from the falling edge of DSx to the falling edge of DTACK). Interrupts: I(1-7) request levels; single or multiple interrupt ■16 input and 16 output channels Logic interface: TTL and CMOS logic. vectors; priority, sense and enabling are under software control.■On-board optical relays Digital Outputs Points per board: 16. ■All inputs and outputs are isolated from the VMEbus Ordering Information Output type: Solid-state relay, Form A, Single Pole, Single and from each other Throw, normally open (SPST - NO). I/O Boards ■Interfaces to TTL and CMOS logic Output voltage range: 0 to 55V. AVME9440-i 16 inputs, 16 outputs (32 channels) Output voltage @ 1 Amp DC: 0.5V DC maximum. ■Optional LEDs indicate channel status AVME9440-i-L Output current range: 0 to 1 Amp DC (0 to 40°C). Same as AVME9440-i plus LEDs■Adjustable debounce circuitry Derate current above 40°C: 10mA/°C. ■Vectored interrupts for change-of-state, level Output response @ 1 Amp DC: 2.0mS maximum. Software (see Page 81) 90SW-API-VXW (polarity), or pattern detection Logic interface: TTL and CMOS logic. ® VxWorks software support package Output fuse: F1-16 (2 AMP). ■User can read back output states Accessories (see Page 87) Environmental ■Outputs sink up to 1 Amp DC, from up to a 6985-16DI Operating temperature: 0 to 70°C (32 to 158°F). Isolated digital I/O panel, 16 output channels 55V DC source Isolation: Each channel individually isolated via opto-couplers 6985-16DI (inputs) or solid-state relays (outputs). Rated 250V AC or Isolated digital I/O panel, 16 output channels 354V DC continuous from channel to channel and from 9944-x VMEbus. Withstands 1500V AC surge for 60 seconds. Cable, 64-pin female connectors at both ends. Links VME board front connector to 6985-16D panel. Specify length, x, in feet (12 feet max). Acromag, Inc.  PO Box 437, Wixom, MI 48393  Phone: 248-624-1541  Fax: 248-624-9234  solutions@acromag.com  www.acromag.com 80 VMEbus Boards