Features

• ​PCI-7250 extendable up to 32-CH relay outputs & 32-CH DI with three PCI-7251
• Supports a 32-bit 5 V PCI bus
• 8-CH relay outputs on PCI-7250
• 8-CH isolated DI
• On-board LED indicators for relay status
• On-board relay driving circuits
• Relay output stats read back
• On-board low-pass filtering for DI

Specifications

Relay Output
Number of channels: 8

Relay types
PCI-7250/7251:
- Channel 0-3: SPDT (normal open)
- Channel 4-7: SPST (normal open)
LPCI-7250/LPCIe-7250/cPCI-7252
- Channel 0-7: SPDT (normal open)

Contact rating
PCI-7250/7251 & cPCI-7252
- AC: 120 V @ 0.5 A
- DC: 24 V @ 1 A
LPCI-7250/LPCIe-7250
- DC: 30 V @ 2 A

Breakdown voltage: 1000 VRMS

Contact resistance: 100 m

Relay ON/OFF time
Operate time: 8 ms
Release time: 8 ms

LED indicators: onboard LEDs for relay status

Expected life
PCI-7250/7251 & cPCI-7252
- >5x10⁵ operations @ 1 A, 24 VDC
- >2x10⁵ operations @ 0.5 A, 120 VAC

LPCI-7250/LPCIe-7250:
- >10⁵ operations @ 2 A, 30 VDC
- >5x10⁵ operations @ 1 A, 30 VDC

Data transfers: programmed I/O

Isolated Digital Input
Number of channels: 8

Maximum input range: 24 V, non-polarity

Digital logic levels
0-24 V, non-polarity
- Input high voltage:
5-24 V (PCI/LPCI/LPCIe-7250, PCI-7251)
3-24 V (cPCI-7252)
- Input low voltage:
0-1.5 V (PCI/LPCI/LPCIe-7250, PCI-7251)
0-1 V (cPCI-7252)

Input resistance: 

2.2 kΩ @ 0.33 W (PCI/LPCI/LPCIe-7250, PCI-7251) 1.2 kΩ @ 0.5 W (cPCI-7252)

Isolation voltage: 5000 VRMS

Data transfers: programmed I/O

General Specifications
I/O connector
PCI-7250/7251
- 37-pin D-sub female
LPCI-7250/LPCIe-7250/cPCI-7252
- 50-pin SCSI-II female

Operating temperature: 0˚C to 60˚C (32˚F to 140˚F)
Storage temperature: -20˚C to 80˚C (-4˚F to 176˚F)
Relative humidity: 5% to 95%, non-condensing

Dimensions (not including connectors)
162 mm x 107 mm (6.31” x 4.17") (PCI-7250)
141 mm x 102 mm (5.49" x 3.97") (PCI-7251)
120 mm x 65 mm (4.68" x 2.53") (LPCI-7250)
120 mm x 69 mm (4.68" x 2.69") (LPCIe-7250)
160 mm x 100 mm (6.24" x 3.9") (cPCI-7252)

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