AT Systems Offer Advanced Technology
and High Performance At A Low Cost!

The Cattron® AT Series offer the safety and dependability required for operating machinery in harsh, industrial environments. AT Series Systems can be installed on overhead cranes; furnace doors; conveyors, shiploading equipment, mining machinery, agricultural equipment; and much more.

All Cattron® AT Series Systems are custom engineered to meet individual application needs, and can be engineered for up to 32 outputs and/or stepless. The AT-S is a pre-engineered version offering faster delivery and all the advantages of the standard AT without the need for an FCC or DOC license. Check with your Cattron-Theimeg representative for complete details.


All receiver/decoder units (shown above) used with the AT are high quality, industrial units which are housed in compact NEMA 12 (IP 65) enclosures. The AT utilizes high-performance microprocessors with a minimum number of components. A single board receiver/decoder responds to the direct control of a rugged, hand-held controller/transmitter. The entire electronics portion of the receiver/decoder is protected with an EMI/RFI shielded sub-chassis (gold box). This compartmentalized chassis contains the power supply, the RF receiver, and the microprocessor-based decoder.

AT Series systems are available with options such as Close Start™, Range Limiting™, and Multi-Frequency Using Synthesis. Multiple microprocessors prevent undesired signals from entering the decoder, thereby improving operation and reliability.

AT decoders incorporate extensive self-diagnostics which perform on a continuous basis to insure reliable and safe operation. A two character status display shows both normal running status and any fault conditions. Outputs are connected to the relay interface via a single ribbon cable. Long-life electromechanical relays are organized for easy function recognition. All relays plug into sockets with mechanical hold-down screws and snubber circuits are provided for inductive loads. LED's located beside each relay show, at a glance, when it is energized.

Cattron application engineers ensure that all AT receiver/decoders are programmable. This allows for complex sequential logic, function timing, interlock, etc., to be built-in, often eliminating the need for a second interface, such as a PLC with timers and latching relays. Because the AT is programmable, they can be adapted to a wide variety of equipment. AT systems will also work with several different Cattron-Theimeg controller/transmitter styles.

Key Features

  • Low cost per output
  • 1-32 relay outputs + ON/OFF (mainline)
  • Extensive self-diagnostics
  • Single point status display shows normal and fault condition
  • "Dry" relay contact outputs which allow mixed control voltages
  • Automatic safety override (ASO) output verification
  • Custom factory engineering for each application (AT only)
  • Simplified installation with complete custom wiring diagrams
  • Multiple "watch dog" timers provide redundancy to insure that no motion is carried out without Command (total of five – two hardware, three software for CPU, Mainline, & Motor Functions)
  • Compact enclosure
  • EMI/RFI shielded/compartmentalized sub-chassis
  • No motherboard or card cage
  • Plug-in micro-controller with e-prom allows quick "personality" changes (reduces need for spare controllers)
  • Multiple power supply options
  • FCC/DOC/EC non-licensed and licensed systems available
  • Long "ride thru" time during power interruptions to the receiver/decoder
  • Diagnostic software for PC available
  • Stepless output available for smoother operation and control
  • Can be configured with several different controller/transmitter styles

Check Controller page for available styles


Technical Specifications:

Interface Type: Mechanical relays normally open contacts of 8 A @ 250 VAC or 5 A @ 30 VDC. (Outputs fused at 5 Amps; normally closed contacts optional)

Output Termination: Two screw terminals per relay contact allowing for mixed control voltages and transformer (two 14 AWG per terminal)

Number of outputs: 1-32 independent and /or simultaneous, plus mainline on/off (operate)

Enclosure: NEMA 12 (IP65) standard - dust, water and oil tight; NEMA 4 and 4X (IP66) optional

Dimensions: AT-16: 12"H x 10"W x 4.5"D (305mm x 254mm x 115mm);

AT-32: 14"H x 12"W x 6"D (375mm x 330mm x 165mm)

Control Voltage Range: 30 VDC or 12-250 VAC fused @ 5Amps (higher voltages with derated current); Stepless: 0-80V Bipolar maximum

Power Requirements: 32/48/110/220VAC 50-60Hz or 12 VDC +/- 20% @ less than 1 Amp; optional 12 to 48 VDC power regulators available

Receiver Frequency (Crystal & Synthesized): 72 - 76 MHz, 403 - 424 MHz or 447 - 471 MHz (Radio); 880 nanometers (Infrared)

Sensitivity: 0.5 uV (20 dB quieting) typical

Frequency Stability: +/- 0.0005% of reference frequency

Environmental: approx. -4F to +140F (-20C to +60C), RH 0 to 95%, non-condensing (special units available)

Microcomputer Speed: 12MHz

Memory Size: E-Prom 32K bytes (programmed by Cattron™) EE-Prom 512 bytes (field programmable)

Optional diagnostic Port: RS232C (DB25 Connector) or RS422 (MTA Connector)

RF Range: 300 ft. nominal (92m) (no license required); 800+ ft. (246+m) dependant on local conditions

 *Specifications subject to change without notice

Copyright© 1997 CATTRON GROUP INTERNATIONAL™. All Rights Reserved. US