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• <br /> RS-232 Peripheral Equipment Requirements Connecting Communications Area Modules <br /> Computer Console <br /> DS-9 <br /> Conrcector <br /> To <br /> Avallable \� <br /> Por[ <br /> � —0 <br /> DB-25 <br /> Connector °s. <br /> EDB-25 Conned« <br /> 2 Twisted Pairs(24-26 AWG) <br /> Da-25 Connector DB-25 C—tor <br /> O O O O O O <br /> U U 3. �EN 4— v v U 0 O EN <br /> O DIS o DIS-4— <br /> RTS/DTR Rt5/DTR <br /> CONTROL CONTROL <br /> 10-DCE ® DCE <br /> $,® C X X X X $, C t + <br /> u r r ¢ ¢ <br /> #TFE S2 U TE S2 <br /> 0 Ell R 0 <br /> TD RD Loopb—k TD RD L.00p€z ck <br /> Flash red&green --Y"'Normal --®=Required selection Flash red&green --® Normal <br /> Black Box Model:ME800A Black Box Model:ME800A <br /> tis-po\shmodem.eps <br /> Figure 20. Connecting the Console to a Remote Device via Short-Haul Modems <br /> S-232 Peripheral Equipment Requirements <br /> Any peripheral equipment connected to an RS-232 serial port must meet the following <br /> criteria: <br /> 1. Peripheral equipment must be UL listed. <br /> 2. The equipment must have an EIA standard RS-232C or RS-232D communications <br /> protocol. <br /> 3. The equipment must NOT be installed over or in a hazardous location. <br /> 4. The RS-232 with Auxiliary port module provides connections for two RS-232 <br /> devices.The Auxiliary port is provided for convenience in connecting two , <br /> peripheral devices at the same time.The ports are in parallel so it is generally <br /> recommended that both attached devices not be active at the same time. <br /> 48 <br />