Patton 2018

Patton 2018 ... 2018 requires no AC power or batteries to operate and supports data rates to 115.2 Kbps. When connected to an active current loop interface, no additional power is needed. When connected to a passive current loop interface, DC line power may be applied to the Model 2018 via pins 9 and 21 of the DB-25 current loop interface.

Operating full duplex, the Model 2018 supports communication distances up to 5 miles over two unconditioned twisted pair. To guard against data loss due to ground loops, the Model 2018 is equipped with 2500V RMS optical isolators on the line side. The Patton Model 2018 connects directly to either the RS-232 interface or the 20mA or 60mA current loop interface using a male or female DB-25 connector. An external DCE/DTE switch on the Model 2018 eliminates the need for a crossover cable on the RS-232 inter-face.

The Model 2018 is designed to be easy to use. There are no internal jumpers or DIP switches to set, so there is no need to open the case to configure the unit. The only configuration necessary for operation is proper setting of the external DCE/DTE switch.