Data-transmission equipment
Data-transmission equipment. The data-transmission equipment is a card of the ND system, which incorporates the following elements: - Modulator/demodulator, in accordance with the V22 and V22 bis recommendations of the CCITT, which allows duplex data transmission over a dedicated 2- or 4-wire line....
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Sprache: | eng ; spa |
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Zusammenfassung: | Data-transmission equipment. The data-transmission equipment is a card of the ND system, which incorporates the following elements: - Modulator/demodulator, in accordance with the V22 and V22 bis recommendations of the CCITT, which allows duplex data transmission over a dedicated 2- or 4-wire line. - Control Unit for Switched Telephone Network (STN) which allows direct connection to the STN, of the modem, and of the associated telephone, without the necessity for an optional SNCU or V25 bis unit. - Line Switching Unit which allows manual or automatic switching from a point-to-point, 2-wire line to a spare STN line as well as manual or automatic return to the point-to-point line.
EQUIPO DE TRANSMISION DE DATOS. EL EQUIPO DE TRANSMISION DE DATOS, ES UNA TARJETA DEL SISTEMA DE ND, QUE INCORPORA LOS SIGUIENTES ELEMENTOS: -MODULADOR-DEMODULADOR, DE ACUERDO CON LAS RECOMENDACIONES V22 Y V22-BIS DEL CCITT, QUE PERMITE LA TRANSMISION DUPLEX DE DATOS SOBRE UNA LINEA DEDICADA DE 2 O 4 HILOS. -UNIDAD DE CONTROL PARA RED TELEFONICA CONMUTADA (RTC), QUE PERMITE LA CONEXION DIRECTA A LA RTC, DEL MODEM, Y DEL TELEFONO ASOCIADO, SIN NECESIDAD DE LA UNIDAD OPCIONAL UCRC O V25-BIS. -UNIDAD DE CONMUTACION DE LINEAS QUE PERMITE LA CONMUTACION, MANUAL O AUTOMATICA DE UNA LINEA PUNTO A PUNTO A 2 HILOS A UNA LINEA DE LA RTC DE RESERVA ASI COMO EL RETORNO, MANUAL O AUTOMATICO, A LA LINEA PUNTO A PUNTO. |
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