The Westermo range of industrial modems are designed for use in harsh environments and allow remote access connections over PSTN dial up and leased lines / private wires. With support for serial RS-232, RS-422 and RS-485 protocols, Westermo modems are ideal for industrial applications. For security, features such as password protection, dial-back and caller ID answering are included. Whether mounted on a DIN-rail or in a rack, the Westermo modems ensure reliable communications.