6/3/2019 Stewart Electronics announces that ALC Lighting products will no longer be manufactured!
WE DO HAVE STOCK ON MOST ALC PARTS! At least for now! Original prices are greatly reduced (while they last). Quantity limits apply.
We recently learned that the principle semiconductors used in the manufacturing of our light switches are now OBSOLETE!
We advise those of you with ALC products installed in your homes to contact us to purchase some spares. Our light switches had less than a .01 percent failure rate. So, a few spares may last you for many years.
For the same reasons we will no longer be able to make repairs to your circuit boards.
CONSIDERING UPGRADING? For the past 25 years we have consulted on installs across North America. Our initial advice is free. Call us to discuss your home’s future.
We also have a decent stock of the recently obsolete HAI Omni controllers.
Founder – Stewart Electronics
Cell and Office 864-663-1517
Information below is for historical purposes only.
The part no. 364698-01 Home Lighting Serial Expansion Module enables the Stewart Electronics Home Lighting Controller to interface to personal computers and host control systems. In this manner, the Home Lighting Controller may function as a lighting system manager in an integrated system environment. The serial communications port may be configured for either 9600 bps RS-232 or RS-485 operation. When connected to a host controller’s serial port, the controller provides direct access to all ALC lighting control features.
The Home Lighting Controller provides two serial communications protocols; ASCII-Link and ALC-Link. ASCII-Link is a low level ASCII character based communications protocol suitable for interfacing of systems by installation technicians in the field. ALC-Link is a high level communications protocol intended for incorporation into a 3rd party manufacturer’s controller firmware. This protocol provides access to all ALC switch operational features and individual switch status information. Refer to the Part No. 1307659 Developers Guide for detailed protocol information. Refer to the part no. HLC_SI application note for lighting control, programming and unsolicited messaging examples utilizing the ASCII character based protocol.
The Serial Expansion Module is factory configured for RS232 serial communications. The module may be configured for RS485 serial communications by moving the RS232/RS485 shunt to the RS485 position. The TRANSMIT and RECEIVE LED indicators will flash to indicate the direction of serial data flow.