The 10589 Short-Haul Modem Package enables local communication between the ET101 and a computer RS-232 serial port. The kit includes two RAD modems, a 10596 interface, a surge protector for the computer, a cable burial splice kit, and three cables. One 20 ft cable connects one RAD to the station. (The ET101 is surge protected by the connector board). A second cable, with an inline surge protector, connects the second RAD to a computer. The third cable is a straight-through 9-25 pin serial cable.