DOVE - Data Over Voice Encoder

Features

 

The Data Over Voice Encoder (DOVE)/MDL500 incorporates special filters which permit the transmission of data over operating facility PBX telephone lines simultaneously– with normal voice communications and no interference. The DOVE/MDL500 provides optimal data communications throughout a facility by superimposing the data on in-place wiring–thereby eliminating the need for costly data cable installation.

 

The DOVE/MDL500 can also be used to transmit digital data over in-service current loop instrumentation lines. This is the preferred method of adding data communication capability using existing wires without disturbing the wires’ initial function.

 

Superior Performance
Dove allows full duplex data transmission up to 9600 baud for distances up to four miles on the 22 AWG PBX wiring and supports and switches with its Data Terminal Ready and Request-to-Sent controls signals. LED indicators monitor AC Power On, Transmit and Receive Data and Carrier Detect.

 

Many Applications
DOVE can be used to send any data in RS-232, 422 or 485 format- such as industrial process control and monitoring as well as word processing, graphics or accounting tasks. Use it as a full mid-sized local area network, or as a node on a larger T-1 or Ethernet LAN.

 

Completely Transparent
DOVE is absolutely transparent to all telephone operations. It does not interfere with telephone usage in any way, nor does telephone activity affect DOVE data transmissions. Telephone communications are unaffected even if power is lost.

 

Noise Immunity & Polling
DOVE has exceptional immunity to electromagnetic interference. Transformer isolation of the data line eliminates ground plane problems. Multi-stage receiver filters insure high data integrity. For multi-drop monitoring and process control applications install DOVE Master unit at the host computer to communicate with as many as 30 DOVE remote devices.

 

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