Download JCI Driver

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Part Number: CC2531 Dear All, I followed CC2531EMK Quick Start Guide to install the Packet Sniffer and insert CC2531 USB dongle in my computer, but it is not recognized as the user guider said it will automatically finish the driver installation, is there any where I can find the driver for CC2531 USB Dongle so that the dongle can be recognized by the computer?

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We’ve made it easy to download HP printer software to set up your printer. Enter your product name and we’ll get you the right printer setup software and drivers. We support all major desktop and mobile operating systems, including Windows, MacOS, iOS, and Android. Available to download to an NAE35, NAE45, NCE25, or NIE29/39/49 at Release 9.0.7. To obtain a UI resources file, you can either (a) view the device from its site director, (b) view another device at the same release to load the UI resource, or (c) manually load the UI resource.

The S2USB485 is a USB to full-duplex RS-232 and half-duplex RS-485 serial converter integrated into a single device. In essence the S2USB485 is a single USB serial port that has two electrical interfaces available to it (RS-232 and RS-485). Either interface can be used without the need to set jumpers or change dip switch settings.



The S2USB485 can be used as a replacement to the Johnson Controls MM-CVT101 (RS-232 to N2 Bus) / CVTPro100 converter for those computers or laptops that have a USB interface. In addition to direct support for Johnson Controls software (Metasys, HVAC Pro, etc), the S2USB485 provides the following improved features and functionality:

  • USB interface and so is supported by the latest laptops and operating systems
  • Does not require an external power supply. The device is entirely USB interface powered
  • Incorporates both a RS-232C and N2 (RS-485) bus interface so that multiple converters are not necessary.
  • N2 Bus communication is supported under Windows 7 (32/64 bit), XP, 2000 directly.
  • Transmit and Receive Indicators
  • N2 Bus flow control internally controlled (i.e. no jumpers or resistors to add/modify)
  • N2 Bus has end of line termination (EOL) enabled or disabled by an internal slide switch
  • Designed and Manufactured in Canada using Industrial grade components
  • ZoneBus is not officially supported.
  • ROHS Compliant
  • New Version (July 2008) now has enhanced overvoltage protection and internal auto reset-able thermal fuses in the event of high voltages present on the RS485 / N2 bus
  • New Version (July 2008) includes enhanced mechanical rigidity of the RS485/N2 bus connector
  • New Version (July 2008) includes OBD (On-Board Diagnostics) of the RS485/N2 Bus. OBD allows our S2USB485DiagN2 software to electrically analyze (voltage measuring) the RS485/N2 bus and indicate electrical issues to the user.
  • As of July 2008, the anchored cable version of the S2USB485 (part number S2USB485-JC-C) has been reluctantly discontinued do to the quality issues with our anchored cable manufacturer. Only the S2USB485-JC-B is now offered with or without the required USB cable (a Type A to Type B).
  • New Version (July 2008) Pricing has been maintained for this enhanced S2USB485 version. The included cable version is priced the same as the old anchored cable version
  • Vista Tested and Compatible
  • Tested and compatible with JCI's HVACPro and JCI's FX CommPro
  • Windows 7 Compatible. Please see the two installation documents on the right for the procedure for using HVACPro/CommPro under Windows 7
  • Windows 8/10 - Compatible Drivers have been released. They are located below under latest Drivers. Use the Windows 7 Installation document (also listed below) to install under Windows 8/10.
  • Windows 64-bit - JCI software tools such as HVACPro, etc do not to work under 64-bit Windows Versions Natively. Windows 7 has XP mode which allowed for legacy applications to be used, but Windows 8/10 currently does not have an XP mode equivalent. It is recommended that HVACPro users, etc continue to use Windows XP or Windows 7 with XP Mode (only available with Windows 7 Pro or Ultimate). If you need to use Windows 8/10 with JCI Software tools you need to install a Licensed copy of Windows XP in your preferred Virtualuzation software (i.e. Virtual Box, VMWare, etc) under Windows 8.
  • The S2USB485 is USB 3.0 Compatible. However, if you are using Windows XP (natively or via a virtual machine), be aware that USB 3.0 is not supported by Windows XP, as USB 3.0 was not invented when XP was supported and so there are no XP USB 3.0 Drivers available. To use USB 3.0 ports with XP and older operating systems, you will need to 'downgrade'your USB 3.0 ports to USB 2.0 (or legacy mode as some call it). This downgrade can vary from manufacturer to manufacturer and so consult with your computer manufacturer on how to do this (usually it is a BIOS setting change, etc.)
  • Note Windows 10 Users:The most recent Windows 10 builds (1607 or newer) / updates have been enforcing a new requirement by MIcrosoft that all drivers must be signed using an enhanced Signing Certificate. In addition to this new certificate Microsoft is forcing all drivers to be reviewed and accepted by them. This means that Win10 users have no ability to disable Windows 10 driver signature enforcement and so any new drivers and their installation is at the sole discretion of Microsoft. Until this becomes remedied we have provided some specific Win10 drivers to those newer Windows 10 builds. These are older drivers, but will install and work perfectly fine. The driver links are located below.
Download JCI Driver
  • Note Windows 7 Users:Early Windows 7 versions or those Windows 7 versions that do not have the latest service packs may be unable to install the latest Windows 7 Drivers. Microsoft updated the driver signing policy to require 256 bit encryption that these older versions do not support. For those older Windows 7 users, simply use the Win XP specific drivers, as these use the older Microsoft signing policy and will work without issue. The driver links are located below.


Part Number:

  • S2USB485-JC-B: USB type B Recepticle Only (No Cable)
  • S2USB485-JC-CB: A S2USB485-JC-B but includes the required USB cable; cable: 2 Metre (6 feet) USB 2.0 Type A to Type B Cable

Supported Operating Systems:

  • Windows 10 32/64 Bit
  • Windows 8
  • Windows 7 32/64 Bit
  • Windows Vista
  • Windows XP

Power Requirements:

  • USB Powered, maximum of 225 mA

Data Rates:

  • RS-485: 300 to 1 MBaud
  • RS-232: 300 to 3 MBaud
  • Temperature 0 C to +60 C
  • Humidity: 10 - 95 % RH (non-condensing)

Data Interfaces:

  • USB: USB 1.1/2.0/3.0 Compatible

  • RS-485: Half Duplex, 1 Unit Load, 3-Pin Connector
  • RS-232C: DB-9 Male Connector


  • 2.6”L x 2.6”W x 1.1” H
  • 6.6cm L x 6.6cm W x 2.8cm H

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