User`s guide

LONWORKS LPT-10 Transceiver User’s Guide 1-7

Many link power applications, especially those utilizing battery-backed power

supplies, will require that power consumption be minimized during normal operation.

To accommodate these applications, the link power transceiver incorporates power

management functions to reduce power consumption. Two methods of power management

are provided:

(1) Sleep Mode–the transceiver can be put to sleep and awakened by Neuron Chip I/O

activity;

(2) Neuron Chip Sleep Timer–the transceiver can awaken the Neuron Chip from its

sleep mode on a timed basis by periodically triggering an input line on the Neuron

Chip. This feature allows the Neuron Chip to awaken, sample its I/O lines,

communicate with another controller, and then go to sleep again. This mode of

operation is especially useful for applications where sensors are sampled from time-

to-time, but where power consumption must be reduced between samples.

Audience

The LONWORKS LPT-10 Link Power Transceiver User’s Guide provides specifications

and user instructions for LPT-10 transceiver customers.

Content

This manual provides detailed technical specifications on the electrical and

mechanical interfaces and operating environment characteristics for the transceiver

module.

This document also provides guidelines for migrating applications from a LonBuilder™

Developer’s Workbench Emulator to a transceiver module-based product design.

Complete references and vendor sources are included to simplify the task of integrating

the transceiver module with application electronics.

This document has a list of references in Chapter 8. Whenever a reference document is

addressed, a superscript number corresponding to the reference has been placed in the

text, e.g., Standler

. Whenever a specific chapter or section within a reference has

been referred to, the reference is enclosed in brackets and the chapter is addressed by

number, e.g., Reference [1], Chapter 8.