National Instruments USB-6509 USB Digital I/O Device

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National Instruments · Computer-Based Device

USB-6509

Name: USB-6509
Brand: National Instruments

The NI USB-6509 is a bus-powered USB digital I/O device with 96 channels and 5 V TTL/CMOS logic. It provides programmable power-up states, digital input filtering and a watchdog function.

ManufacturerNational Instruments

ModelUSB-6509

Part Number779975-01

Product TypeUSB Digital I/O Device

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Digital channels96 bidirectional lines

Direction configuration12 ports of 8 lines; input/output direction selected per port

Logic5 V TTL/CMOS

Output drive24 mA per line, subject to aggregate current limits

I/O connector100-pin female 0.050 series SCSI

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Overview

Product overview

Key product information and technical features.

The USB-6509 connects external digital devices to a computer over USB 2.0. Its outputs can drive suitable solid-state relays, while programmable startup states and watchdog behavior help manage output states during startup and application faults.

Channel count does not imply independent direction selection for every line: each eight-line port must be configured as input or output. Plan signal assignments at the port level.

96 digital I/O lines arranged in twelve eight-line ports.
Software-configurable power-up states.
Programmable input filtering for switch debouncing and glitch suppression.
Watchdog-controlled output states for computer or application faults.

Verified specifications

Technical data

Verified product specifications.

Manufacturer part number	779975-01
Bus interface	USB 2.0 Hi-Speed or full-speed
Bidirectional digital channels	96 channels
Direction control	Port-by-port; 12 ports with 8 lines each
Digital logic compatibility	5 V TTL/CMOS
Per-line output drive	24; subject to port and device current limits mA
Maximum total sinking or sourcing current per port	100 mA
Maximum simultaneous total DO sourcing current, bus-powered	215 mA
Optional external DC supply input	12 ±20% VDC
I/O connector	100-pin female 0.050 series SCSI
Dimensions	17.78 × 10.30 × 3.34 cm

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National Instruments

Manufacturer

USB 2.0

Computer interface

USB-6509

96-channel digital I/O device

Signal connection

100-pin SCSI I/O connector

Check port direction assignments and aggregate current limits before connecting loads.

Manuals & software

Technical resources

Manuals, software and technical resources for this model.

USB-6509 Official Product PageProduct Page · ni.com

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NI USB-6509 User Guide and SpecificationsUser Guide And Specifications · docs-be.ni.com

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USB-6509 Configuring the Power-Up StatesConfiguration Instructions · ni.com

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NI 6509 Port-Level Direction ConfigurationTechnical resource

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Alternatives & system components

FAQ

Product-specific questions

Product-specific answers based on available technical information.

Can individual lines within one port use different directions?

No. The USB-6509 requires direction configuration per eight-line port, rather than independently for each line.

Does the USB-6509 require an external power supply?

It supports USB bus power. NI documents an optional external 12 VDC supply when additional sourcing capacity is required; port current limits still apply.

How are startup output states configured?

NI provides a Power-up States configuration dialog in MAX. Its instructions specify Hardware Configuration Utility for Linux.