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Table Of Contents

PCI-8511 Specifications

Last Modified: February 8, 2019

This document lists specifications for the PCI-8511 1-port and 2-port low-speed/fault-tolerant CAN interface device.


Warranted specifications describe the performance of a model under stated operating conditions and are covered by the model warranty.

Characteristics describe values that are relevant to the use of the model under stated operating conditions but are not covered by the model warranty.

  • Typical specifications describe the performance met by a majority of models.
  • Nominal specifications describe an attribute that is based on design, conformance testing, or supplemental testing.

Specifications are Typical unless otherwise noted.


Specifications are typical at 0 °C to 55 °C unless otherwise noted.

Power Requirements

+5 VDC (±5%)

640 mA

+3.3 VDC (±5%)

940 mA


Dimensions and Weight


10.67 cm x 16.76 cm (4.2 in. x 6.6 in.)


1 port

98 g (3.5 oz.)

2 port

102 g (3.6 oz.)

RTSI/Front Panel Sync Connectors

Trigger lines

7 input/output

Clock lines

1 input/output

I/O compatibility


Power-on state

Input (High-Z)


Rising edge triggers

Physical Characteristics

CAN Physical Layer

Low-Speed/Fault-Tolerant CAN


NXP TJA1054A or TJA1055T

Max baud rate

125 kbps

Min baud rate

40 kbps, 10 kbps min for all error modes


Operating Environment

Ambient temperature

0 °C to 55 °C

Relative humidity

10% to 90% RH, noncondensing

Maximum altitude

2,000 m (800 mbar) at 25 °C ambient temperature

Indoor use only.

Storage Environment

Ambient temperature

-20 to 70 °C (Tested in accordance with IEC-60068-2-1 and IEC-60068-2-2.)

Relative humidity

5 to 95% RH, noncondensing (Tested in accordance with IEC-60068-2-56.)

Pollution Degree (IEC 60664)


Isolation Voltages

Port-to-port ground


500 Vrms verified by a 5 s dielectric withstand test


60 VDC, Measurement Category I

Port-to-earth ground


500 Vrms verified by a 5 s dielectric withstand test


60 VDC, Measurement Category I


This isolation is intended to prevent ground loops.

Measurement Category I is for measurement performed on circuits not directly connected to the electrical distribution system referred to as MAINS voltage. MAINS is a hazardous live electrical supply system that powers equipment. This category is for measurements of voltages from specially protected secondary circuits. Such voltage measurements include signal levels, special equipment, limited-energy parts of equipment, circuits powered by regulated low-voltage sources, and electronics.


Do not connect the PCI-8511 to signals or use for measurements within Measurement Categories II, III, or IV.


Ne connectez pas le PCI-8511 à des signaux et ne l'utilisez pas pour effectuer des mesures dans les catégories de mesure II, III ou IV.


Measurement Categories CAT I and CAT O (Other) are equivalent. These test and measurement circuits are not intended for direct connection to the MAINs building installations of Measurement Categories CAT II, CAT III, and CAT IV.

Safety Compliance Standards

This device is designed to meet the requirements of the following electrical equipment safety standards for measurement, control, and laboratory use:

  • IEC 61010-1, EN 61010-1
  • UL 61010-1, CSA C22.2 No. 61010-1

For UL and other safety certifications, refer to the device label or the Product Certifications and Declarations section.

Electromagnetic Compatibility

This product meets the requirements of the following EMC standards for electrical equipment for measurement, control, and laboratory use:

  • EN 61326-1 (IEC 61326-1): Class A emissions; Basic immunity
  • EN 55011 (CISPR 11): Group 1, Class A emissions
  • EN 55022 (CISPR 22): Class A emissions
  • EN 55024 (CISPR 24): Immunity
  • AS/NZS CISPR 11: Group 1, Class A emissions
  • AS/NZS CISPR 22: Class A emissions
  • FCC 47 CFR Part 15B: Class A emissions
  • ICES-001: Class A emissions

Group 1 equipment (per CISPR 11) is any industrial, scientific, or medical equipment that does not intentionally generate radio frequency energy for the treatment of material or inspection/analysis purposes.


In the United States (per FCC 47 CFR), Class A equipment is intended for use in commercial, light-industrial, and heavy-industrial locations. In Europe, Canada, Australia and New Zealand (per CISPR 11) Class A equipment is intended for use only in heavy-industrial locations.


For EMC declarations and certifications, and additional information, refer to the Product Certifications and Declarations section.

CE Compliance

This product meets the essential requirements of applicable European Directives, as follows:

  • 2014/35/EU; Low-Voltage Directive (safety)
  • 2014/30/EU; Electromagnetic Compatibility Directive (EMC)

Product Certifications and Declarations

Refer to the product Declaration of Conformity (DoC) for additional regulatory compliance information. To obtain product certifications and the DoC for NI products, visit, search by model number or product line, and click the appropriate link in the Certification column.

Environmental Management

NI is committed to designing and manufacturing products in an environmentally responsible manner. NI recognizes that eliminating certain hazardous substances from our products is beneficial to the environment and to NI customers.

For additional environmental information, refer to the Minimize Our Environmental Impact web page at This page contains the environmental regulations and directives with which NI complies, as well as other environmental information not included in this document.

Waste Electrical and Electronic Equipment (WEEE)

EU Customers  

At the end of the product life cycle, all NI products must be disposed of according to local laws and regulations. For more information about how to recycle NI products in your region, visit

Battery Replacement and Disposal

Battery Directive  

This device contains a long-life coin cell battery. If you need to replace it, use the Return Material Authorization (RMA) process or contact an authorized National Instruments service representative. For more information about compliance with the EU Battery Directive 2006/66/EC about Batteries and Accumulators and Waste Batteries and Accumulators, visit



National Instruments符合中国电子信息产品中限制使用某些有害物质指令(RoHS)。关于National Instruments中国RoHS合规性信息,请登录。(For information about China RoHS compliance, go to

  • 1 PCI-8511 revision E and later use the TJA1055T transceiver; previous hardware revisions use the TJA1054A transceiver. To identify your hardware revision, refer to the 19xxxx<rev>-4xL text on the green label in the top left corner on the secondary side of the board; <rev> indicates the hardware revision.

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