JED Micro
Designers and manufacturers of audio/visual and industrial controllers in Australia

A/V controller summary

T460R metallic T450 metallic T440 T430  

JED designs and builds four ranges of Audio / Visual Controllers in Australia. They have a number of features in common:

    • They all use high quality rear-printed pre-printed polycarbonate keyboards mounted on standard Australian Clipsal 2000 series power point blank plates, with steel 'clickers' giving users feedback on a key press. (No printing and fitting of labels is needed at install time) (The T470 uses a magnetic keyswitch with a changeable label);

    • They are all pre-programmed with a large library of projector and flat panel (LCD and Plasma) control codes;

    • They all all set up on board, and so do NOT need to be programmed via a code download from a laptop. Thus installers (or savvy customers) can alter projector types, channel allocations (or names), warm-up and cool-down times, connections to external audio, relay systems, mixers, video or USB switchers, etc without needing to call in programmers who need to alter downloaded code ... it is all simply done on site;

    • They all use reliable bidirectional serial (RS232) communications, usually via CAT5 cable (up to 80m) and all signal back to the user/installer that bidirectional communications is established with the display device (signalled on the text display or LED flash codes). With the T460R, you also view lamp and filter hours;

    • The T460R and T440 provide a second RS232 port for control of audio systems (e.g. the JED T461 four-channel stereo or T441 two-channel stereo/4-channel mono audio controllers), switchers or auxiliary displays;

    • The T460R and T440 provide FET outputs for control of screens, switchers, lighting and dippers (Two FET outputs are an option with the T470);

    • All JED controllers provide for a PIR (Passive Infra-Red) input (a burglar-alarm type device) to automatically send a "power-down" command to the display device if everyone has left the room and gone home with the display device still running. This saves both projector bulb file AND power consumption in the classroom; and

    • All JED controllers can be field-upgraded from a lap-top to include new device drivers via a serial cable.

(Mouse over to zoom)

T460R: Serial projector controller with OLED text display       
Go to T460R

This controller has two RS232 serial ports for device control, and provides user messages on a bright OLED text display to inform users of system status (warm-up, cool-down, current source (by user-defined name), current audio volume (numerically) and mute and freeze status.) The display also shows lamp and filter hours, and can control aspect ratio, microphone volume and the screen.

Setup is done on-board after entering a pin number, giving access to 18 menus, much like a mobile phone. Users can roll the current source through up to eight channels. (Unused ones are skipped.)

The new T460R-R4 (option) has four N-FET 'relay' outputs for screen control, dippers and room lamp dimming. The use of these "relay" outputs can be altered during the setup process, and they could be actuated for a particular source (e.g. to operate a video switch or USB switch) or used to turn on system, audio amplifier or projector mains power when the ON button is pressed, and turn it off at the end of the OFF countdown time.

T460R units are available with a range of keyboards ... three sample ones are shown in these photos. The "metallic" one looks great on boardroom walls, and the other two have been popular in schools and universities.



T470 family: Corporate 4, 6, 8 or 10 button controllers 
(New product, initial release Jan 2012)     Go to T470

The JED T470 is a new controller from JED, manufactured in Melbourne, and designed to run simple Audio/Visual installations in an intuitive way.

It communicates with the projector or LCD panel via RS232, but an IR option is also available. It fits in standard Australian power point fittings, but by design does NOT have a removable front, suiting certain Australian state requirements for school use.

It is much simpler to use and set up than LCD displays and provides keys, which can be relabelled to suit the installation, and a switch action with a mechanical “click” to the operator’s finger. White indicator LEDs show channel selections above each key. (It is available with four, six eight or ten key options, and a white or metallic case finish.)

The T470 controller can be used stand-alone as a simple, low-cost controller, or teamed with a T452 expander box. This option provides screen relay outputs, security and PIR inputs, IR outputs, and extra ports to talk to video switchers, audio mixers and amplifiers. Two T470 controllers can run via one T452, giving a master-slave setup from two points in a hall.

No programming is needed … setup is done via the keys, via a PC application or via switches on the T452 expansion unit. Each unit contains a data base for hundreds of projectors and panels.


T440 family: Economical 4, 6 or 8 button controllers      
Go to T440

These controllers use red and green LEDs to show system status, and select between one to five sources for the display device. They also have two RS232 serial ports, controlling the display from one and auxiliary audio controllers, relay boxes or USB switchers from the second port. There are also three "'Relay" outputs for screen control and either a USB switcher control or system power control.

Green LEDs flash during warm-up or during channel change, and a red LED (by the OFF button) flashes during cool-down. Source buttons can be single hit (Computer, Video) or can be double-hit, so pressing a button again toggles between Computer1/Computer2 or between Video1/Video2. Yellow buttons control audio level, either in via the projector, or via an external audio mixer/attenuator. See the T441 or T461. (Pressing both yellow keys together provides audio/video mute.)

The eight-button version provides for a TV source as well, and two extra (blue) keys are provided for TV channel Up/Down control as well. It also provides one or two Computer channels and one or two Video channels .

Setup of a T440 (and the T430, following) is simply done by setting a two-digit display device code into rotary numbered switches on the back. Other options are set on a DIP switch.


T430: A low cost, simple controller with one or two sources    
Go to T430

This simple 2-button controller is usually associated with Interactive Whiteboards, where it simply controls projector On and Off functions.

Two keyboard options are available: KB1 has just On and Off keys, and KB3 option allows the On-Source key to toggle the projector between a primary source (e.g. computer) and a secondary source (e.g. a laptop or a DVD player.) It has only one serial port and no screen control outputs, although it has a "relay" output which can be used for either a USB switcher control or system power control.

It has a PIR input to provide automatic projector closedown if everybody leaves the room without manually shutting the system down.


For JED audio devices, see: JED audio products

For JED audio devices, see: JED ancillary devices