This product group consists of modems that can be connected to the public telephone network. The modems are approved in most European countries and in many countries in other parts of the world. Westermo modems are designed for industrial applications, which means that there are functions built in to them that are especially useful in industrial systems like for instance PLC connection mode and DIP switch settings. The Westermo products have a watchdog function and are galvanically isolated to give reliable communication in harsh environments. Some of the modems can also be used on 2- or 4-wire leased lines over very long distances. We also have modems that can be used for long distance multidrop applications.

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	2-/4-wire Leased Line V.23 Modem TD-23 Point to point or multidrop applications on long distance 2-wire half duplex, 4-wire full duplex RS-232/V.24 and RS-422/485 interface Adjustable transmission level Adjustable receiver sensitivity Frekari upplýsingar um TD-23
	Telephone Modem TD-32B RS-232/V.24 interface Dial-up or leased line (2- and 4-wire) AT-commands DIP-switch setup Data compression V.42bis and MNP5/Error correction V.42 (MNP 2-4; LAP-M) and MNP 10 Frekari upplýsingar um TD-32B
	Telephone Modem TD-32B RS-422/485 RS-232/V.24 and RS-422/485 interface Dial-up or leased line (2- and 4-wire) AT-commands DIP-switch setup Data compression V.42bis and MNP5/Error correction V.42 (MNP 2–4; LAP-M) and MNP 10 Frekari upplýsingar um TD-32B RS-422/485
	Telephone Modem TD-33 V34 33.6 kbit/s, V.90/K56flex 8482; 56 kbit/s Terminal data rates up to 230.4 kbit/s RS-232/V.24 on 9-pos. D-sub Watchdog function Supports 11 bit protocols Frekari upplýsingar um TD-33
	Telephone Modem TD-34 Up to 33.6 kbit/s (ITU-T V.34) Terminal data rates up to 115.2 kbit/s RS-232/V.24 on 9-pos. D-sub or screw terminal RS-422/485 on screw terminal Watchdog function - High temperature range Dip-switch configuration - Dial back Frekari upplýsingar um TD-34
	Telephone Modem TD-35 Up to 33.6 kbit/s (ITU-T V.34) Terminal data rates up to 115.2 kbit/s RS-232/V.24 on 9-pos. D-sub or screw terminal Watchdog function Call-back function Frekari upplýsingar um TD-35
	Telephone Modem TD-35 RS-422/485 Up to 33.6 kbit/s (ITU-T V.34) Terminal data rates up to 115.2 kbit/s RS-232/V.24 on 9-pos. D-sub or screw terminal RS-422/485 on screw terminal Watchdog function Call-back function Frekari upplýsingar um TD-35 RS-422/485