Tiny USB Modem Modules Operate From -40°C to +85°C

A line of tiny USB hardware modem modules from Radicom Research operate in the ?40°C to +85°C temperature range. The modules have received global telecom and safety agency approvals including IEC60601-1 (medical compliance), and are designed to meet the stringent requirements of applications such as remote-site data acquisition and medical devices. They’re available in two configurations: module only (V92HU) and module with RJ-11 jack and USB type B receptacle installed (V92MB-U). The modems, which support V.92 analog data and V.44 data compression, process data using their own firmware and run completely independent of the host computer’s operating system. They work with Linux, Windows, and Mac operating systems; are CDC-compliant; and are supported by Microsoft CDC modem drivers and Linux CDC-ACM drivers. The V92MB-U measures 1.0 in. x 2.5 in. x 0.75-in. installed with USB interface and RJ-11 phone jack. The modular V92HU measures 1.0 in. x 1.0 in. x 0.25 in. and has no on-board jack, permitting custom jack placement. Both modem modules have excellent EMC/EMI shielding and contain a hardware controller, a data pump, and an international DAA (data access arrangement). The international DAA does not draw power from the telephone line, but draws only low power from the USB connection. Consequently, they operate reliably when line current is low due to long lines or poor conditions. The embedded USB modem modules are available now. Prices begin at $49.00 in 1000-unit quantities. RADICOM RESEARCH INC., San Jose, CA. (408) 383-9006.