RS Components
Our website uses cookies and similar technologies to provide you with a better service while searching or placing an order, for analytical purposes and to personalise our advertising to you.

Maxim Integrated USB Male to RJ11 Female x 2 Network Adapter

This image is representative of the product range

449 In stock for delivery within 7 working day(s)
Add to Basket

Price (ex. GST) Each


(exc. GST)


(inc. GST)



Packaging Options:
RS Stock No.:
Mfr. Part No.:
Maxim Integrated
COO (Country of Origin):
unitsPer unit
1 - 4$64.63
5 +$63.72

USB to 1-Wire/iButton Adapter

The DS9490 series is a uniquely designed USB bridge and holder for a single F5-size iButton, with a high-speed 12 Mbps USB Interface, which supports standard and overdrive 1-wire communications. Slew-Rate-Controlled 1-wire timing and active pullup for improved 1-wire network performance.

The DS9490R has a RJ11 interface for standard connectivity accessories such as the DS1402D-DR8
DS9490B has an iButton® Interface and retains a fixed iButton. This Maxim product comes with a built in custom DS2401 identification chip, and the IButton is securely held behind a latched door.

Features and Benefits

High-Speed 12 Mbps Universal Serial Bus (USB) Interface
Supports Standard and Overdrive 1-Wire® Communication
Slew-Rate-Controlled 1-Wire Timing and Active Pullup for Improved 1-Wire Network Performance
DS9490R has a RJ11 Interface for Standard Connectivity Accessories such as the DS1402D-DR8
DS9490B has an iButton® Interface and Retains a Fixed iButton
Built-In Custom DS2401 Identification Chip
Reads all 1-Wire and iButton Devices. Writes All Except EPROM 1-Wire/iButton Devices


• iButton Initialization and Download
• Demonstration
• Development
• Software Authorization

Maxim DS9490R is a USB bridge with 1-Wire RJ11 interface to accommodate 1-Wire receptacles and networks.


• Software Authorisation
• iButton Initialisation and download

• Demonstration

DS9490R has an RJ11 Interface for Standard Connectivity Accessories such as the DS1402D-DR8 see 732-7403

The iButton is a computer chip enclosed in a 17mm diameter stainless steel can. Because of this unique and durable container, up-to-date information can travel with a person or object anywhere they go. It can be mounted anywhere because it is rugged enough to withstand harsh environments, indoors or outdoors. It is small and portable enough to attach to a key fob, ring, watch or other personal items. It can be used daily for applications such as access control to buildings and computers, asset management, and various data logging tasks.

Connector AUSB Male
Connector BRJ11 Female x 2
Connector A GenderMale
Connector B GenderFemale