IS420YDIAS1B GE Discrete Contact I/O Module

GE IS420YDIAS1B Mark VIeS Discrete Contact I/O Module

GE IS420YDIAS1B Mark VIeS Discrete Contact I/O Module

Availability: 10 left in stock

The GE IS420YDIAS1B, also cataloged as the IS420YDIA Discrete Contact I/O Module, operates as a dedicated hardware component for discrete...

SKU: IS420YDIAS1B

Manufacturer: GE Fanuc
Product No.: IS420YDIAS1B
Product Type: Discrete Contact I/O Modules
Product Origin: USA
Payment:T/T, Western Union
Weight: 450g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

The GE IS420YDIAS1B, also cataloged as the IS420YDIA Discrete Contact I/O Module, operates as a dedicated hardware component for discrete contact sensing and input signal conditioning within Mark VIeS safety control platforms. The module interfaces with terminal boards via a DC-37 pin connector, accepting up to 24 contact inputs across three selectable voltage levels. Onboard acquisition and processor boards digitize field dry contacts and terminal-specific feedback signals, transmitting data streams over dual redundant RJ-45 Ethernet connections.

Hardware Specifications

Parameter	Specification
Model	IS420YDIAS1B
Brand	General Electric
Origin	USA
Weight	0.45 kg (1.00 lbs)
Dimensions	8.26 cm x 4.19 cm x 12.10 cm
Operating Temp	-40 to 70 deg C
Power Consumption	24 VDC nominal (3-pin power connector)
Series	Mark VIeS
Product Type	Discrete Contact I/O Modules
Input Channels	24 contact inputs
Galvanic Isolation	1500 V
AC Rejection Filter	125 VDC input filter AC rejection
Network Interface	Dual RJ-45 Ethernet connectors
Module Connector	DC-37 pin connector
Surface Mount Tech	Surface-mount design
Visual Diagnostics	LED indicators for power, network, and channel status

Backplane Bus Communication and Firmware Flash Compatibility

The IS420YDIAS1B integrates an internal common processor board that handles deterministic signal acquisition from the dedicated input hardware layer. By processing 24 high-speed discrete contact state changes locally, the card optimizes backplane bus communication velocity and eliminates CPU scan-time jitter across safety network loops. Firmware flash compatibility across Mark VIeS node revisions allows dynamic I/O density scaling and hardware configuration without disrupting neighboring module network sessions.

Frequently Asked Questions

Q: How is galvanic isolation structured on the IS420YDIAS1B input channels?

A: The module incorporates 1500 V galvanic isolation between the field contact inputs and the internal microprocessor logic, protecting system networks from high-voltage field transients.

Q: What power interface is required to operate the module?

A: The board receives a 24 VDC auxiliary power feed connected via a dedicated 3-pin power plug on the pack chassis.

Q: What function does the 125 VDC input filter serve on the acquisition board?

A: The integrated RC input filter provides AC voltage rejection up to 125 VDC levels, preventing induced AC noise from triggering false contact state changes.

Field Installation Guidelines

ESD Suppression Precautions: Attach a grounded ESD wrist strap to the panel metalwork before opening static-shielded packaging or mounting the module to avoid semiconductor damage.
DC-37 Interface Engagement: Align the rear DC-37 pin connector carefully with the terminal board header before securing the locking thumbscrews to ensure solid electrical contact.
Shielding & Grounding Integrity: Ensure field wiring shield wires are properly terminated to the grounding bar on the terminal board to maintain 1500 V galvanic isolation performance.
Thermal Envelope Spacing: Maintain a minimum 50 mm clearance above and below the module housing to allow adequate natural convection cooling across the -40 to 70 deg C operating range.

What's clients say about us

Excellent Emergency Support!

Our production line was down due to a faulty Bently Nevada monitor. We found it in stock here and they shipped it via DHL immediately. Back in operation within 48 hours—truly a lifesaver for our plant.

Mark Thompson

Maintenance Manager, USA

Reliable Source for New Spares

Finding brand new, original modules is critical for our safety. This team delivers factory-fresh components with full certification. Their commitment to only selling new products makes them our most trusted partner.

Robert Hoffmann

Engineering Lead, Germany

Top-tier Service and Quality

We have sourced Honeywell and Schneider parts here for two years. Every shipment arrives well-packaged with original factory seals intact. Clear communication and the best lead times in the industry.