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PDF VMIVME-2170A Data sheet ( Hoja de datos )
| Número de pieza | VMIVME-2170A | |
| Descripción | 32-bit Optically Isolated Digital Output | |
| Fabricantes | VMIC | |
| Logotipo |  |
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VMIVME-2170A
32-bit Optically Isolated Digital Output
• 32 optically isolated outputs
• 2.5 or 300 mA outputs
• Externally supplied pull-up voltage for maximum isolation
• Field-configurable pull-up resistors
• Source or sink output capability with low current option
• High output voltage tolerance to 30 V normal mode
• High isolation potential; 1 kV sustained, 6 kV pulsed
• Positive or negative true options
• 8- or 16-bit data transfers
• On-board DIP switches provide 14-bit board address selection
• Double Eurocard format with front panel
• Field-selectable nonprivileged or supervisory short I/O transfers
APPLICATIONS
• Digital control from VMEbus
• Elimination of system ground loops
• Control in high-electrical noise environments
• Control of multiple-potential system components
INTRODUCTION — The VMIVME-2170A Optically
Coupled Digital Output Board consists of VMEbus
compatibility logic, data control logic, four 8-bit output
registers, and 32 optically isolated high-level outputs. The
board is implemented as a double Eurocard form factor PC
board, and provides all necessary address decoding and data
transfer control logic to accept both 8- and 16-bit data
transfers. Optical couplers isolate the 32 outputs from each
other and from the VMEbus. Both supervisory and
nonprivileged data transfers are supported.
Data Transfer Type: D16, D8(EO)
Access Time: 250 ns maximum
OUTPUT CHARACTERISTICS
Output Current Modes: See Figure 1 and Table 1 for
high and low current options.
The VMIVME-2170A’s typical output configuration is
shown in Figure 1. The internal configuration of the
VMIVME-2170A board is shown in Figure 2.
FUNCTIONAL CHARACTERISTICS
Output Configurations:
Current sinking with pull-up resistor
Current sinking, no pull-up resistor
Voltage sourcing (low current mode)
Board Function: 32-bit, optically isolated, digital
output board, designed and optimized specifically for the
VMEbus. Featuring high isolation, the
VMIVME-2170A provides a flexible, low-cost 4-byte
digital output port with high noise immunity.
Compatibility: The VMIVME-2170A is a standard
double height VME printed circuit board, and is
electrically and mechanically compatible with the
VMEbus.
Addressing Scheme: Addressable as four 8-bit ports
or two 16-bit registers, located on any 32-bit boundary
within the short supervisory or short nonprivileged I/O
space.
Board Address: Board address is selected by 14
on-board DIP switches. Operation is supported in any
available slot in the VMEbus backplane, except slot 1.
VMEbus Access: Address modifier bits are decoded
to support either short supervisory or nonprivileged short
I/O access. A single jumper is provided to support this
option, and is factory configured for short supervisory
I/O access.
Ordering Options
March 29, 2000 800-102170-000 E A B C – D E
VMIVME-2170A
–
0–
A = Data Polarity
1 = Positive True
2 = Negative True
B = Output Current
0 = 2.5 mA
1 = 300 mA
C = 0 (Option reserved for future use)
Connector Data
Compatible Cable Connector
Strain Relief
PC Board Header Connector
Panduit No. 120-964-435
Panduit No. 100-000-072
Panduit No. 120-964-033A
Note
Panduit is also known as ITW/Pancon.
For Ordering Information, Call:
1-800-322-3616 or 1-256-880-0444 • FAX (256) 882-0859
E-mail: [email protected] Web Address: www.vmic.com
Copyright © January 1986 by VMIC
Specifications subject to change without notice.
F
VMIC • 12090 South Memorial Parkway • Huntsville, Alabama 35803-3308
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| PDF Descargar | [ Datasheet VMIVME-2170A.PDF ] | |
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