Closed Loop Traffic Modem

The GDI Model SM336SA is an AT command set compatible Dial up modem. It is a temperature tested rugged modem designed for the traffic industry. Directly connected to traffic controllers, variable message signs or to dial-up the web, it communicates over the public switched telephone network. The GDI Model SM336SA modem offers data rates of 16
speeds from 300 to 33,600 Bps. The Smart Modem is AT command set compatible with autodial, auto-answer, and auto-speed detect. The SM336SA is compatible with all previous GDI dial-up Modems. The internal fused power supply eliminates the common "Brick" external transformer.

High Temperature

Integral Power Supply

RS232 or RS485 Interface

Standard ?AT? Command Set

Rugged Metal Enclosure

Call Monitor Speaker

Data Compression

Error Correction

V.34 Autospeed 16 Data

For more information or to receive a quotation please call Marlin Controls, Inc. at 508-278-0446 or 203-743-6231 in Connecticut.