GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW) | ||||
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12:42 Apr 4, 2014 |
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Spanish to English translations [PRO] Tech/Engineering - Computers: Systems, Networks | |||||||
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| Selected response from: DLyons Ireland Local time: 11:11 | ||||||
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Summary of answers provided | ||||
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4 +1 | The TD line is is held in a mark condition |
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3 +1 | in the mark condition |
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Summary of reference entries provided | |||
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Findings only. |
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Discussion entries: 8 | |
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The TD line is is held in a mark condition Explanation: TD = Transmit Data. MARK = −12 V. |
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in the mark condition Explanation: ... is kept in the mark condition by ... Thanks to the info from Tania, this seems to fit (not really my field of expertise)... although perhaps the answer/points should go to her. :-) Systems Reference Library IBM 2701 Data Adapter Unit Original ... bitsavers.trailing-edge.com/.../A22-6844-1_2701_Data_Adapter_OEM_... holds this line in the Mark condition when the line is ..... the Mark condition during transmit operations. ... Logical 0 or Space: Maximum voltage -0.5v,. bitsavers.informatik.uni-stuttgart.de/.../Vistar_GT_Technical_Users_Man... The BREAK key places "space"; i.e., a logical "0" condition, on the data line for as long .... cation line is returned to the mark condition ready for a new START. RS232 Tutorial on Data Interface and cables - ARC Electronics www.arcelect.com/rs232.htm ... condition" while A -3 to -12 volts indicates an "OFF" 1-state (MARK) condition. ..... A positive voltage between 3 and 15 Vdc represents a logical 0 and a ... |
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Reference: Findings only. Reference information: http://www.byteboss.com/view.aspx?id=215002&name=rs232 Un uno binario se denomina ***** “marca” (mark) *****y se representa por un voltaje de -3 a -15 voltios. Un cero binario se denomina espacio (space) y se representa por un voltaje de +3 a +15 voltios. Cualquier voltaje entre -3 y +3 voltios se considera inválido. Una corriente de corto circuito no puede exceder los 500mA Representación de caracteres RS-232 NO dice como representar caracteres (7 u 8 bits es la forma más común, pero podrían ser 5 ó 6). Cuando no se envían datos la señal se debe mantener en estado de marca (un uno lógico, conocido también como RS-232 idle state). El comienzo de flujo de datos se reconoce porque la señal pasa de “marca” a “espacio”. .....el bit de paridad es uno (1) si el caracter lleva una cantidad impar de unos. Mark Parity (paridad de “marca”): el bit de paridad siempre es uno Space Parity (paridad de “espacio”) : el bit de paridad siempre es cero Representación de caracteres Después del bit de paridad (si lo hay) vienen los bits de parada (stop bits). Equipment DCE: Data Communication Equipment +15V -15V +3V -3V Rango positivo: space Rango negativo: mark 0V Región de transición 0 1 2 3 4 5 6 7 mark space start stop Cuando el bit de parada no se encuentra se produce un Framing Error. -------------------------------------------------- Note added at 1 hr (2014-04-04 13:53:33 GMT) -------------------------------------------------- Lecture Notes - CSCI 561 - Computer Networks pix.cs.olemiss.edu/csci561/l2.html When off, circuit open, high voltage, current stopped, or a logical one, the pulse is said to be in the "mark" condition. A character code begins with the data ... Data Communications and Networking for Manufacturing Industries books.google.com.jm/books?isbn=0646105221 Dario J. Toncich - 1993 - Computer networks The idle state is when the system is "marking time" and hence is referred to as the "MARK" condition or binary 1 (current ON). The condition where current is ... I believe your answer is "mark condition". HTH! Saludos. |
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