Jekyll Electronic Technology has introduced a new range of modems, suitable for electricity, gas and water companies who want to introduce a reliable, remote monitoring capability to a metering or general telemetry network without costing the earth. Telemodem2 offers extended power options and remote diagnostics flexibility. A choice of data ports and interfacing levels is provided for many host meters and monitors, and all Jekyll modems are interchangeable for increased value.
The Telemodem2 range
Telemodem2 modems are small enough to fit under the terminal cover of a typical electricity meter. Applications include automated meter reading (electricity, gas and water meters); heat meters; electricity distribution systems, and linkage with water leak detection equipment and water quality testing systems. Five models are available.

The "˜Standard' is the entry level low power version with a 2400bps (V22bis) connection. Data ports are compatible with both logic or RS232 signal levels and the Caller Line Identity feature allows line sharing with other equipment for reduced installation cost.

The "˜Freedom' is the zero power version with a 2400bps (V22bis) connection. Zero power is ideal for true remote metering, since all power is taken from the telephone line rather than mains or battery power. This allows simple installation to legacy equipment where communications power cannot easily be provided.

The "˜Fastlink' is a low power modem with a 14,400bps (V32bis) high speed connection, suitable for collecting larger amounts of data from remote sites. It requires no more power than an ordinary low speed modem.

The "˜Mobile' is the new low power modem with a GSM mobile connection capability. It is able to draw power smoothly, without demanding large pulses of current, and remain in a standby state on micro-amps only. Supply voltages can be pre-selected to link up with battery powered data loggers, as well as direct power supplies in distribution plants. GSM communication also extends versatility in remote metering.

The "˜Custom' model allows customers to select the mounting and interface options, the communications standard, mechanical configuration and power supply. Other requirements, such as environmental protection and intrinsic safety, can also be included, depending on the application.