Friday, March 29, 2024
HomeCommunicationPHY Ethernet single-pair for greater reach

PHY Ethernet single-pair for greater range

4
(1)

Texas Instruments has unveiled a new Ethernet PHY (physical layer ) capable of transmitting 10Mbps Ethernet signals up to 1.7km via a single twisted pair.

The DP83TD510E's cable range increase is 1.5km greater than the 200m requirements of the IEEE(Institute of Electrical and Electronics Engineers) 802.3cg 10BASE-T1L specification for single-pair Ethernet.

This additional cable length helps designers increase the range of industrial communications without increasing system weight or cabling costs.

How to meet the higher bandwidth requirements of long-distance communications

As the complexity of industrial and building automation systems increases, so does the need to transmit more data to and from nodes at the periphery of the network.

The ability to directly access the applications of peripheral nodes can improve control and status monitoring, and simplify data sharing between networked systems.

Current solutions to bring connectivity to peripheral nodes often use a fragmented system of multiple fieldbus protocols supported by protocol conversion via network gateways.

The unification of networks through protocol conversion increases their complexity and cost, while limiting the ability to remotely monitor the applications of peripheral nodes.

The DP83TD510E allows designers to implement a single communication network, from controller to peripheral node, capable of transmitting full-duplex data over a single twisted pair.

By eliminating the need for additional protocols, gateways and cables for higher bandwidth communications, designers can simplify network management while improving system control and interoperability of long-distance applications, including control of HVAC valves and actuators, field transmitters, elevator master controls and fire alarm control panels.

By upgrading to single-pair Ethernet from two-wire fieldbus technologies, such as 4 to 20 mA current loops, designers can further simplify network designs and reduce installation costs by reusing existing two-wire fieldbus infrastructure for data and power transmission.

Implementing Ethernet connectivity in intrinsically safe systems

The DP83TD510E is designed for use in intrinsically safeAdvanced Physical Layer (APL) Ethernet systems. Ethernet-APL is an Ethernet specification based on the IEEE 802.3.cg 10BASE-T1L standard and has been developed to simplify the implementation of Ethernet in process automation systems with intrinsic safety requirements.

A key aspect in the design of intrinsically safe Ethernet-APL systems, particularly systems designed for use in potentially explosive hazardous environments, is the ability to reduce the power levels and temperature of Ethernet PHYs during system failure conditions.

Through the support of external termination resistors, the DP83TD510E is able to reduce the insertion current and maintain lower operating temperatures when used in long-distance process automation applications such as field transmitters.

As well as helping designers to more easily meet intrinsic safety requirements, the DP83TD510E's extremely low power consumption of less than 45 mW at 1 V point-to-point provides an additional power margin that can be reallocated to other critical circuits to increase system performance.

For further information click here

How interesting did you find this article?

Average rating 4 / 5. Number of ratings: 1

No ratings yet! Be the first to rate this item.

Register on Elettronica TECHtoo !
Here are the exclusive benefits for registered users:
- FREE Electronic Lab Collection Ed. 1
- FREE subscription to Elettronica AV magazine
- receipt of real-time updates
- ability to review and comment on articles
SIGN UP NOW!

LATEST NEWS

PARTNER

MARKET

SOCIAL

IN EVIDENCE

Register on Elettronica TECHtoo !
Here are the exclusive benefits for registered users:
- FREE Electronic Lab Collection Ed. 1
- FREE subscription to Elettronica AV magazine
- receipt of real-time updates
- ability to review and comment on articles
SIGN UP NOW!