When a Non-XLR Connector is Used > 자유게시판

Meanwhile, the British discussed possible cover stories to explain to the Americans how they obtained the coded text of the telegram and to explain how they obtained the cleartext of the telegram without letting anyone know that the codes had been broken. The United States placed conditions on German usage, most notably that all messages had to be in cleartext (uncoded). Room 40 had obtained German cryptographic documents, including the diplomatic code 3512 (captured during the Mesopotamian campaign), which was a later updated code that was similar to but not really related to code 13040, and naval code SKM (Signalbuch der Kaiserlichen Marine), which was useless for decoding the Zimmermann Telegram but valuable to decode naval traffic, which had been retrieved from the wrecked cruiser SMS Magdeburg by the Russians, who passed it to the British. Hall passed the telegram to the British Foreign Office on February 5 but still warned against releasing it. On February 1, 1917, Germany began unrestricted submarine warfare against all ships in the Atlantic bearing the American flag, both passenger and merchant ships. The Japanese government, another nation mentioned in the Zimmerman Telegram, was already involved in World War I, on the side of the Allies against Germany.

Besides the highly-provocative war proposal to Mexico, the telegram also mentioned "ruthless employment of our submarines". Wilson had refused to assign US Navy crews and guns to the merchant ships, but once the Zimmermann note was public, Wilson called for arming the merchant ships although antiwar members of the US Senate blocked his proposal. However, that put German diplomats in a precarious situation since they relied on the United States to transmit Zimmermann's note to its final destination, but the message's unencrypted contents would be deeply alarming to the Americans. However, many Americans, particularly those with German or Irish ancestry, wished to avoid the conflict in Europe. However, Wilson later reversed the order and relaxed the wireless rules to allow coded messages to be sent. The coded text could then be shown to the Americans without embarrassment. For the first story, the British obtained the coded text of the telegram from the Mexican commercial telegraph office. Mexican President Venustiano Carranza, recently installed, threatened to destroy the oil fields if the US Marines landed there. Since there had been ample time for Room 40 to reconstruct the code cryptanalytically, it was readable to a fair degree. By 1917, the diplomatic code 13040 had been in use for many years.

Moreover, the retransmission was encoded with the older code 13040 and so by mid-February, the British had the complete text and the ability to release the telegram without revealing the extent to which the latest German codes had been broken. Privately, the British needed to give the Americans the 13040 code so that the American government could verify the authenticity of the message independently with their own commercial telegraphic records, but the Americans agreed to back the official cover story. The document is believed to be the actual telegram shown to the American ambassador in London in 1917. Marked in Admiral Hall's handwriting at the top of the document are the words: "This is the one handed to Dr Page and exposed by the President." Since many of the secret documents in this incident had been destroyed, it had previously been assumed that the original typed "decrypt" was gone forever. Since the public had been told falsely that the telegram had been stolen in a decoded form in Mexico, the message was at first widely believed to be an elaborate forgery created by British intelligence.

In this context, baseband is the term's antonym, referring to a single channel of analog video, typically in composite form with separate baseband audio. It is an example of in-band signaling, where control information is sent over the same channel as its data. Later, a Telex was a message sent by a Telex network, a switched network of teleprinters similar to a telephone network. Western Union's decision to allow Bell to gain the advantage in telephone technology was the result of Western Union's upper management's failure to foresee the surpassing of the telephone over the, at the time, dominant telegraph system. Bell was at first incredulous and thought that it was a forgery. It has been estimated that AT&T saved $100 million in the first quarter of the 20th century. Released in 1991, the Mercedes-Benz W140 was the first production vehicle to feature a CAN-based multiplex wiring system. The government later released a statement that Japan was not interested in changing sides or attacking America.

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