Aten High Speed Parallel Line Extender
The parallel interface has a serious limitation in that data can only be transmitted reliably over relatively short distances. This problem is solved with the lightweight, easy to use, IC-164T (Transmitter) / IC-164R (Receiver) line extender pairs. The speed of the IC-164 outperforms any available product of its kind, and use of 4 wire telephone line virtually guarantees error free transmission.

The IC-164 Parallel Line Extender guarantees the reliable transfer and reception of data over distances beyond the standard for length and capability, without the need for an external power source. The IC-164 extends parallel data up to 400m (1300') over 4 wire telephone line for error-free transmission.