National Instruments I/O System
NI PCI-6503 PCI I/O Card
NI ER-16 Channel Electromechanical Relay



3A at 250 Vrms or 30 VDC
Arc-suppressor pads for inductive loads
Electromechanical relay accessory with 8 or 16 independent relays
Simple field connections with screw terminals
Connections for external power supply
Expandable to 32 relays via daisy chaining with a single data acquisition device

The ER-16 is a general-purpose, electromechanical relay accessory from National Instruments with 16 independent single-pole double-throw (SPDT), also called Form C, nonlatching relays. The relays can switch up to 3 A at 30 VDC or 250 Vrms. Each relay has a Normally Closed (NC), Normally Open (NO), and Common (COM) terminal.

You can use the ER-8/16 with National Instruments 6503 (DIO-24), 6533 (DIO-32HS), or 6508 (DIO-96) boards using a single cable. By using the SC-205x Series cable adapters, you can use the ER-16 with other National Instruments multifunction boards with digital outputs. A plastic box casing protects the user from exposure to potential electrical hazards.

NI ER-16:
24 or 96 Lines, 5 V TTL/CMOS
With Manuals and Software

MSRP - $145.00

NI 180524-10 50 Position Ribbon I/O Cable Type NB1

Equipment Notes:

The PCI-6503 is a PCI plug-in board. The PCI-6503, as well as other NI 6503 products, uses a 24-bit programmable peripheral interface (PPI) to achieve 24 channels of digital I/O. In addition, each is Plug and Play compatible and does not require a separate card manager for configuration. Each interface works with a variety of operating systems, so you can develop applications that work across multiple platforms.

All Items are new in box.


This item is sold with a 3 Day Satisfaction Guarantee.  So bid with confidence.  As our many customers will attest, we will do our very best to resolve any customer problems. But our official policy is:

This item comes with a 3 day right of return policy.
All returns must be made within 3 days of receipt.
All warranties are void if the calibration / warranty seals are broken.
Equipment must be shipped correctly and returned with all accessories.
Customer is responsible for all shipping charges on returns.
Foreign Buyers please be aware: We offer no warranty or returns on items shipped outside the USA

Payment, Shipping & Bidding:

Buyer will pay $xx.00 packing and shipping in the continental United States. Payments accepted are Paypal, cashiers checks and money orders only.  No international buyers unless Paypal verified.  Please feel free to contact us if you need other arrangements.

We will make every effort to ship within 24 hours of receipt of payment. We ship with FedEx & UPS only. We will be glad to ship with other carriers using the purchasers shipping account. Please contact us to make any special shipping arrangements. For shipping rate research, our shipping address is Boulder, CO USA ---- Zip Code is 80305.

Many of our auctions have a set packaging and shipping fee.  This set fee makes the transaction easier and allows the purchaser to send payment at once without having to wait for a shipping total.  This is our best guess on an unpackaged item.  Please consider the total with shipping when you are bidding.

Foreign buyers: Unless special provisions have been made, you are responsible for making your own shipping arrangements and all costs related to customs, duties & special packaging requirements. Please do not ask us to quote you international shipping rates. Use the address information above to research you own shipping rates. You can email sales@ascentconcepts (no spam) .com to get the packaging fee, package weight and size for your research. Items sold outside the USA are sold as is.

Bidders - with no feedback or less then 80% positive feedback must contact us through the eBay email system before placing a bid. We will reply through the same system, documenting that you have been approved to bid. If you do not follow these procedures, your bid will be cancelled.  All other bidders, bid with confidence.


About Us:

Ascent Concepts and Technologies is a Research & Development Lab. As a service to the companies and institutions we work with, we broker their excess equipment & act as application specialists on their new equipment needs. We are now offering quality used equipment to the public with the same level of professionalism and service.

Please feel free to email at thomasknox@ascentconcepts (no spam) .com or call Thomas @ 1-303-554-0307 with any Technical questions. Please feel free to email at waltwhite@ascentconcepts (no spam) .com or call Walt @ 1-720-276-8288 with any Shipping or Logistical questions. We make every effort to evaluate and guarantee our equipment. Although we do not provide NIST traceable calibration, we do have extensive in house calibration equipment and make every effort to test and verify performance on equipment we sell. However we do not warranty any items shipped outside the USA.


The equipment shown is a representation only.  We often have multiple units in stock so please email us with your needs.  We have a large inventory and can usually find any test and measurement item in a short time frame.------Inquires