RS-485 Communication Module

The RS485MS-2W is required to enable the Modbus communications function on Model 77x-type products. This module is required when the RM-1000, RM-2000 or other Modbus capable device is used with 77x-type products. Features: Optical isolation from line potentials Powered by the 77x product RS-485 compliant bus drive capability Remote reset input connection Power connection for the Model RM1000 Specifications: Surge Protection: Input Power: IEC 61000-4-5 Level 1; Inputs/Data Lines: IEC 61000-4-5 Level 2 Protection Class: IP20 Termination Type: Torque: 3in-lbs; Wire: 12-20AWG Mounting Method: 9-pin D-Sub connector on the side of a 777-Series Operating Temperature: -20° to 50°C (-4° to 122°F) Humidity: 10-95% non-condensing per IEC 68-2-3 Dimensions: 2.08 in H x 2.90 in W x 0.77 in D (52.8 x 73.7 x 19.6 mm)