Advanced Programming
19
ALD-H48 Lighting Controller
Advanced Programming

Introduction

This is a reference manual to describe the interface provided between an AMX NetLinx system and
a Lutron H48 Lighting Controller. The H48 supports an IP protocol. Further, the H48 supports 48
light loads (dimmers) and 24 keypads (addressable as keypad 1 through 24).

Overview

The COMM module translates between the standard interface described below and the H48
protocol. It parses the buffer for responses from the H48, sends strings to control the H48 and
receives commands from the UI module or telnet sessions.
A User Interface (UI) module is also provided. This UI uses the standard interface described below
and it parses the command responses for feedback.
The following diagram gives a graphical view of the interface between the interface code and the
Duet module.
Some functionality in the device interface may not be implemented in the API interface. In cases
where device functions are desired but not API supported, the PASSTHRU command may be used
to send any and all device-protocol commands to the device. See the PASSTHRU command and the
Adding Functions to Modules section on page 36 for more information.
A sample UI module and a touch panel file are provided in the module package. These are not
intended to cover every possible application, but can be expanded as needed to meet the
requirements of a particular installation.
FIG. 13 Interface between code and NetLinx module
NetLinx
UI Module
Virtual
Device
Duet
COMM Lutron H48
Module
SNAPI