TM 5-3895-374-24-1GlossaryYou can find the following terms used throughout this manualAuto Answer- type of modem that has self-contained timeouts and tests They can answerand hang the phone up automaticallyBackplane Current Draw-- The amount of current the module requires from thebackplane The sum of the backplane current draw for all modules In a chassis is used toselect the appropriate chassis power supplyBaud Rate- The speed of commutation between devices on a network. All devices mustcommunicate at the same baud rate. For example, the DH-485 network devices default to19,200 baudCalculated Watts- The amount of heat generated by those points energized on an I/OmoduleChannel-Communication port on a module.Chassis-A hardware assembly that houses devices such as I/O modules, adapter modules,processor modules, and power suppliesContinuous Current Per Module- The maximum current for each module The sum of theoutput current for each point should not exceed this valueContinuous Current Per Point- The maximum current each output is designed tocontinuously supply to a loadCPU-Central Processing Unit or processorDF1 protocol-A peer-to-peer link-layer protocol that combines features of ANSI X3 28-1976specification subcategories D1(data transparency) and F1 (two -way simultaneoustransmissions with embedded responses).Direct Connect- type of modem that is connected to a dedicated, leased phone line and isactive at all times.DH-485 Network- The DH--85 network is a collection of devices connected to thecommunication cable allowing information exchange. A communication network based onthe EIA Standard for RS-485 using an Allen-Bradley proprietary protocol.DTE Controlled Answer- type of modem that is unattended and is attached directly to thephone lines. The Interface module or the 5/03 processor acts as the Data TechnicalEquipment (DTE) which Controls the modem via the DTR, DSR, and DCD signals Themodule incorporates timeouts and tests to properly operate these types of modems.Glossary(page 3-463)
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