ADLINK PCI-725X Series 8-CH Relay Output & 8-CH Isolated Digital Input Cards User Manual

The ADLINK PCI-725X manual details features, specifications, installation, and operation of 8‑channel relay output and isolated digital input cards.


ADLINK PCI-725X Series 8-CH Relay Output & 8-CH Isolated Digital Input Cards User Manual - cover page
Brand
ADLINK
Document type
User Manual
Language
English
Pages
48
File format
PDF
File size
653 KB
Published
07 October, 2026
Updated
07 October, 2026
MD5 checksum
7F9ED3C703F62FC8FDAE7547B6EA9ECA

About this manual

The PCI-725X series provides 8 relay actuators and 8 opto‑isolated digital inputs for PCI, cPCI, LPCI and LPCIe platforms. The cards are designed for industrial ON/OFF control, laboratory automation, and data‑acquisition systems, offering plug‑and‑play PCI‑Bus or PCI‑Express interfaces and on‑board LED status indicators.

The manual covers hardware layout, jumper settings, PCI configuration, driver installation for Windows and Linux, register maps, and detailed operation theory. Appendices include relay contact protection circuits and component selection guidelines.

What's inside

  • Introduction
  • Features
  • Applications
  • Specifications
  • Digital Input
  • Relay Output
  • General Specifications
  • Power Consumption
  • Installation
  • PCI Configuration

Specifications

Digital input channels8 (PCI‑7250/7251/LPCI‑7250/LPCIe‑7250) or 16 (cPCI‑7252)
Relay output channels8
Relay type4 SPDT & 4 SPST (PCI‑7250/7251) or 8 SPDT (cPCI‑7252, LPCI‑7250, LPCIe‑7250)
Input voltage rangeUp to 24 VDC or 24 VAC, 50‑1000 Hz
Isolation voltage5000 Vrms (PCI‑7250/7251/cPCI‑7252) or 2500 Vrms (LPCI‑7250/LPCIe‑7250)
Relay coil power supply+5 V, 33 mA per relay (total 0.264 A)
Power consumption (PCI‑7250)+5 V @ 140 mA

Frequently asked questions

How many relay outputs does the PCI‑7250 provide?

The PCI‑7250 provides 8 relay actuator outputs.

What is the isolation voltage rating for the digital inputs?

The isolation voltage is rated at 5000 Vrms channel‑to‑system for PCI‑7250, PCI‑7251 and cPCI‑7252 cards.

What are the power supply requirements for the relay coils?

Each relay coil requires +5 V at 33 mA, with a total current draw of about 0.264 A for all eight relays.

Can the digital inputs handle AC‑filtered and non‑AC‑filtered signals?

Yes, jumper settings allow selection between AC‑filtered and non‑AC‑filtered input modes.

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