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安防监控使用光端机常见问题
安防监控工程中越来越多的采用光纤技术传输图像、声音、数据等信息,光纤传输系统的关键设备――数字视频光端机受到广大用户的青睐。一、 关于光路问题:安防监控工程中,光缆大多数都由用户自行敷设,一般为G652单模光纤。由于系统覆盖范围一般都不大,用标配(≤20KM)设备光链…
2024-5-26 1:27:03[未知IP0801]网友
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2024-5-2 9:57:45[未知IP0801]网友
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2024-5-2 5:27:33[未知IP0801]网友
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2024-4-27 7:56:51[未知IP0801]网友
欧洲杯2021最新赛况表['//atelaisi.com/hm5791.html', '//atelaisi.com/hm5792.html', '//atelaisi.com/hm5793.html', '//atelaisi.com/hm5794.html', '//atelaisi.com/hm5795.html']
2024-4-27 3:27:16[未知IP0801]网友
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2024-4-26 22:57:40[未知IP0801]网友
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