The 19″ 1U rack mounted Environmental Monitor provides temperature, humidity, and input channel data for processing by devices, programs, or databases on a corporate TCPIP-based Ethernet LAN. The temperature, humidity, and input channel values are typically gathered and displayed on an SNMP manager such as HP OpenView (though the values can also be displayed on a console terminal connected to the RS-232 port). The operator views the data in either tabular or graphical form for a real-time look at the environmental conditions. The Environmental Monitor sends traps (alarms) to the SNMP management station to alert personnel of abnormal operating conditions when the temperature, humidity, or input channels exceed user-defined limits. The Environmental Monitor measures relative humidity accurate to ±2% and temperature in Fahrenheit or Celsius accurate to ±2° C over its standard operating range of 0° to 50° C. There are three input channels independently configurable to read analog signals or to sense digital status changes. These channels are protected against over- and under-voltage conditions. Each channel, when configured to read analog data, scales the input value to any arbitrary output display range. As a digital input, the channel supplies open or closed contact state information. An eight-position barrier strip on the back of the unit provides convenient access to the input channels. Two of the barrier strip terminal positions make DC power available for external analog devices. With the Environmental Monitor you can obtain vital temperature and humidity data instantly from virtually anywhere on your corporate network. More importantly, you can be informed automatically when mission-critical equipment is in danger of thermal shutdown. And, for added security, multiple sites can receive the same data and alarm information from a single Environmental Monitor.