DLM4500 Dial-up Extended Temperature Modem

Features

Ideal for industrial dial-up, leased line, private line or dedicated wire applications Extended temperature range Versatile, reliable and durable— designed especially for industrial applications Easily interfaces with most PLCs, RTUs and PCs Factory or field configured for your application— ensuring trouble-free installation Supports most serial protocols, including DF1, GE-SNP, Modbus ASCII, DNP, and Optomux. (For Modbus RTU, please contact Data-Linc) Optional auto-dial module for alarm conditions or emergency calls just by sensing a logic flag from the remote PLC

 

DLM4500 voice band modem offers maximum versatility and reliability in remote process control and data acquisition. From Dial-up, leased and private line applications, the DLM4500provides unsurpassed flexibility in any industrial application requiring extended temperatures.

The DLM4500 uses advanced Trellis coding, error correction and data compression technology for virtually error-free data communications. An uncompressed PLC line speed of up to 19.2 Kbaud is standard; however, port baud rates of 1200through 115.2 K are also available.

The DLM4500 operates full/half-duplex on two wires. The asynchronous digital interface can be either RS232/422 or AE485. The DLM4500 autoanswerAE485 version easily provides long distance polling of multiple PLCs at a remote site. The polling operation performed by the Master is completely transparent to the DLM4500. No additional Master programming is required— simply enter the Remote DLM4500 telephone number.

Housed in a rugged steel enclosure for optimal EMI resistance, the DLM4500 series is factory configured for trouble-free installation. No programming or configuration is required.

An Auto Alarm Dial Back module is available on theDLM4500. This gives the remote PLC the ability to establish a data path to a master PLC or PC via a logic input from the remote PLC to the Auto Alarm Dial Back module. This could be used for remote alarming or time based data updates.

 

DLM4500 PDF Brochure

 

 

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