Communication Protocols

Direct RS232 -- All terminals come with a serial port. Serial communication is directly connected to the serial port on your host computer providing immediate access at any time. This is the most common and convienent form of communication. Depending upon the RS232 driver chip in your host computer the clock can be located up to one hundred feet away from the computer.

Modem -- A 1200 baud internal modem provides remote access by the host computer. The modem terminal must be connected to a telephone line using a standard RJ11 telephone plug. The host computer may use either an internal or external modem. Programming sets the terminal's answer time and ring delay. Faster communicationcan be achieved by adding an external modem to the terminal's serial port.

RS485 Local Area Clock Network (LAN) -- The LAN interface allows multiple time clocks on one host computer connection. The clock network is controlled from your computer's serial port using a single twisted pair wire. RS485 connection allowsthe length of the network to be up to one mile.The LAN also provides a linked connection with immediate access at any time.

Ethernet -- Communication is achieved through the use of current TCP/IP connections. Terminals are assigned a static IP address and added to the existing network. Additional wiring and configuration is not required, allowing for an efficient, low cost installation. Works with all TCP/IP networks allowing for future capabilities and compatibility.

Smart Converters -- Multiple remote clocks in the same location may be supported using the Smart Converter. At the remote site, an external modem is connected to the Smart Converter's serial port, and communications pass through the Smart Converters RS485 port. Smart Converters add the functionality of a multiple clock setup at a remote location.