K-WANG
GE VMIVME-2232 32-Channel Relay Output Board
GE VMIVME-2232 32-Channel Relay Output Board
DESCRIPTION
This board may be ordered with positive or negative true relay drivers. With positive true drivers, a relay is energized when a VMEbus logic one is written to the corresponding relay driver. Also, when using negative true drivers, a relay is energized when a VMEbus logic zero is written to the corresponding relay driver.
FEATURES
• 32 relay output channels (one form C relay per channel)
• Contact ratings
— 60 W, 125 VA maximum switching power
— 220 VDC, 250 VAC maximum switching voltage
— 2 A maximum switching current
— 3 A maximum carry current
• Optional contact protection electronics for DC operation
• 8-, 16-, or 32-bit data transfers
• Built-in-Test (all active components are tested)
• Front panel with fail LED
• Compatible with the Intelligent I/O Controllers
• VxWorks driver available
• Software compatible with the VMIVME-2532 and the VMIVME-2533
OUTPUT SPECIFICATION SUMMARY
Output Connector Type: Dual 50-pin compatible connector (SCSI)
Output Organization: Four ports 8 bits wide
GENERAL SPECIFICATION SUMMARY
Compatibility: VMEbus specification-compatible double height form factor
Built-in-Test Features: This board is designed with internal logic that contains the state of each relay coil. This data can be read by the host during on-line or off-line operations to monitor the condition of the board. The data read back by the host will depend upon the board’s mode of operation.
During off-line operations, the test mode is active. The board enters test mode under software control, on-board power up, or after a system reset. In test mode, the relay drivers are disabled, as a safety precaution, to prevent the relays from coming up activated. Special test data can be written to the board, and read back, as a health test for the data path to the relay drivers. The written data is read back from the output registers used to control the relay drivers. Unlike the on-line test described below, the data read back is true, not inverted.
Addressing Scheme: Four ports addressable on 8-, 16-, or 32-bit boundaries in the short I/O addressing. These ports are accessed as 8-, 16-, or 32-bit words.
Address Modifiers Codes: Jumper-selectable for short supervisory and/or short nonprivileged I/O access. Factory configured for short supervisory I/O accesses.
Control and Status Register (CSR): A Control and Status Register (CSR) is provided to control the front panel Fail LED, internal Built-in-Test features, and to enable/disable the relays.
Board Address: Address selection jumpers are provided to select board addresses within the short I/O memory map.
Fail LED: A front panel Fail LED is provided. The LED is illuminated at power up and extinguished under program control.
PHYSICAL/ENVIRONMENTAL
Temperature: 0 to 55 °C, operating, -40 to 85 °C, storage
Humidity: 20 to 80 percent, noncondensing
Altitude: Operation to 10,000 ft
Cooling: Forced air convection
Power Requirements: 3.9 A at +5 V
MTBF: 70,540 hours (217F)
Contacts:
Maximum Switching Power: 60 W, 125 VA
Maximum Switching Voltage: 220 VDC, 250 VAC
Maximum Switching Current: 2 A DC or AC
Maximum Carry Current: 3 A DC or AC
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