{"id":1922,"date":"2021-02-05T10:54:07","date_gmt":"2021-02-05T02:54:07","guid":{"rendered":"http:\/\/www.comtest.cn\/?post_type=product&p=1922"},"modified":"2021-07-05T09:48:23","modified_gmt":"2021-07-05T01:48:23","slug":"dem","status":"publish","type":"product","link":"http:\/\/www.comtest.com.cn\/?product=dem","title":{"rendered":"DEM-\u4f4e\u901f\u6570\u636e\u63a5\u53e3\u901a\u4fe1\u6269\u5c55\u6a21\u5757"},"content":{"rendered":"

\u9002\u7528\u4e8e<\/strong>MTS-5800<\/strong>\u7cfb\u5217<\/strong><\/p>\n

VIAVI \u6570\u636e\u901a\u4fe1\u6269\u5c55\u6a21\u5757 (DEM) \u548c MTS-5800 \u7684\u7ec4\u5408\u4e3a\u7535\u529b\u8fd0\u8425\u5546\u63d0\u4f9b\u4e86\u5e7f\u6cdb\u7684\u6d4b\u8bd5\u80fd\u529b\uff0c\u53ef\u7528\u4e8e\u6d4b\u91cf\u4f20\u7edf\u7f51\u7edc\u6280\u672f\uff08\u6570\u636e\u901a\u4fe1\u3001SONET\/SDH\u3001T1\/E1 \u7b49\uff09\u548c\u65b0\u6280\u672f\uff08\u4ee5\u592a\u7f51\u3001C37.94\u7b49\uff09\u3002DEM \u6269\u5c55\u4e86\u5df2\u7ecf\u7528\u9014\u5e7f\u6cdb\u7684 MTS-5800 \u7684\u6d4b\u8bd5\u8303\u56f4\uff0c\u5141\u8bb8\u6280\u672f\u4eba\u5458\u548c\u5de5\u7a0b\u5e08\u7528\u5f88\u5c11\u7684\u8bbe\u5907\u8fdb\u884c\u5e7f\u6cdb\u7684\u6d4b\u8bd5\u3002<\/p>\n

\u652f\u6301\u7684\u4e32\u884c\u63a5\u53e3<\/h1>\n
$\"\"$ <\/a><\/p>\n
\n
RS-232\/V.28 <\/strong><\/li>\n<\/ul>\n
\u6807\u51c6 V.28 \u4e32\u884c\u6570\u636e\u63a5\u53e3\uff0c\u7528\u4e8e\u8fde\u63a5 DTE \u6216 DCE \u8ba1\u7b97\u673a\u4e32\u884c\u7aef\u53e3\u3002<\/p>\n
\n
RS-530\/RS-530A <\/strong><\/li>\n<\/ul>\n
\u9ad8\u901f\u4e32\u884c\u6570\u636e\u901a\u4fe1\u63a5\u53e3\uff0c\u4f7f\u7528\u4e00\u4e2a\u5e73\u8861\u7684 V.11 \u4fe1\u53f7\u4e3a DTE \u6216 DCE \u53d1\u9001\u548c\u63a5\u6536\u65f6\u949f\u548c\u6570\u636e\u3002<\/p>\n
\n
RS-449 <\/strong><\/li>\n<\/ul>\n
\u9ad8\u901f V.11 \u4e32\u884c\u6570\u636e\u901a\u4fe1\u63a5\u53e3\uff0c\u4f7f\u7528\u5e73\u8861\u7684\u6210\u5bf9\u4fe1\u53f7\u4e3a DTE \u6216 DCE \u53d1\u9001\u548c\u63a5\u6536\u65f6\u949f\u548c\u6570\u636e\u3002<\/p>\n
\n
V.35 <\/strong><\/li>\n<\/ul>\n
\u9ad8\u901f\u6570\u636e\u901a\u4fe1\u63a5\u53e3\uff0c\u53ef\u4ee5\u4f7f\u7528\u5e73\u8861\u7684\u4fe1\u53f7\u4e3a DTE \u6216 DCE \u8fdb\u884c\u53d1\u9001\u548c\u63a5\u6536\u3002<\/p>\n
\n
RS-485 <\/strong><\/li>\n<\/ul>\n
\u9ad8\u901f\u4e32\u884c\u6570\u636e\u901a\u4fe1 V.11 \u63a5\u53e3\uff0c\u4f7f\u7528\u5e73\u8861\u7684\u6210\u5bf9\u4fe1\u53f7\u4e3a DTE \u6216 DCE \u7684\u5355\u70b9\u5bf9\u70b9\u901a\u4fe1\u53d1\u9001\u548c\u63a5\u6536\u65f6\u949f\u548c\u6570\u636e\u3002\u4f7f\u7528 RS-449 \u8bbe\u7f6e\u652f\u6301\u6b64\u63a5\u53e3\u3002<\/p>\n
\n
X.21 <\/strong><\/li>\n<\/ul>\n
\u4e32\u884c\u6570\u636e\u901a\u4fe1 V.11 \u63a5\u53e3\uff0c\u4e3a DTE \u6216 DCE \u4f7f\u7528\u5e73\u8861\u7684\u65f6\u949f\u548c\u6570\u636e\u3002<\/p>\n
\u5b9a\u65f6\u914d\u7f6e<\/h1>\n
\n
\u540c\u6b65\u6a21\u5f0f<\/li>\n<\/ul>\n
\u6570\u636e\u4e0e\u65f6\u949f\u4fe1\u53f7\u4e00\u8d77\u4f20\u8f93\uff0c\u53d1\u5c04\u673a\u548c\u63a5\u6536\u673a\u5171\u7528\u4e00\u4e2a\u65f6\u949f\u3002<\/p>\n
\n
\u5f02\u6b65\u6a21\u5f0f<\/li>\n<\/ul>\n
\u5728\u6ca1\u6709\u65f6\u949f\u4fe1\u53f7\u7684\u60c5\u51b5\u4e0b\u53d1\u9001\u6570\u636e\u3002\u5411\u4fe1\u53f7\u4e2d\u6dfb\u52a0\u8d77\u59cb\u4f4d\u3001\u505c\u6b62\u4f4d\u548c\u5947\u5076\u6821\u9a8c\u4f4d\uff0c\u5e76\u4e14\u8fd9\u4e9b\u4f4d\u662f\u53ef\u8c03\u6574\u7684\u3002\u53d1\u5c04\u673a\u548c\u63a5\u6536\u673a\u4f7f\u7528\u5404\u81ea\u72ec\u7acb\u7684\u65f6\u949f\u3002<\/p>\n
\u9891\u7387\u8303\u56f4<\/h1>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u63a5\u53e3<\/td>\n \u6a21\u5f0f<\/td>\n \u9891\u7387\u8303\u56f4<\/td>\n<\/tr>\n
\u4f4e<\/td>\n \u9ad8<\/td>\n<\/tr>\n
RS-530<\/td>\n \u540c\u6b65<\/td>\n 300 Hz<\/td>\n 16.384 MHz<\/td>\n<\/tr>\n
RS-530A<\/td>\n<\/tr>\n
RS-449<\/td>\n<\/tr>\n
V.35<\/td>\n<\/tr>\n
RS-232<\/td>\n \u540c\u6b65<\/td>\n 300 Hz<\/td>\n 200 kHz<\/td>\n<\/tr>\n
X.21<\/td>\n \u540c\u6b65<\/td>\n 300 Hz<\/td>\n 2.048 MHz<\/td>\n<\/tr>\n
\u5168\u90e8<\/td>\n \u5f02\u6b65<\/td>\n 300 Hz<\/td>\n 115.2 kHz<\/td>\n<\/tr>\n
Manch GE T<\/td>\n 300 Hz<\/td>\n 1.024 MHz<\/td>\n<\/tr>\n
NRZI<\/td>\n .05 MHz<\/td>\n 10 MHz<\/td>\n<\/tr>\n
Manch Diff<\/td>\n 300 Hz<\/td>\n 1.024 MHz<\/td>\n<\/tr>\n
FMO<\/td>\n 300 Hz<\/td>\n 1.024 MHz<\/td>\n<\/tr>\n
FM1<\/td>\n 300 Hz<\/td>\n 1.024 MHz<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
BERT\u7801\u578b<\/h1>\n
\u652f\u6301\u7684\u6bd4\u7279\u8bef\u7801\u7387\u6d4b\u8bd5 (BERT) <\/strong>\u7801\u578b\u5305\u62ec\uff1a<\/p>\n
\n
QRSS<\/li>\n
2^6-1<\/li>\n
2^9-1<\/li>\n
2^11-1<\/li>\n
2^15-1<\/li>\n
2^20-1<\/li>\n
2^23-1<\/li>\n
CSU \u5411\u4e0a\u5faa\u73af\u548c\u5411\u4e0b\u5faa\u73af\u7801<\/li>\n
NIU \u5411\u4e0a\u5faa\u73af\u548c\u5411\u4e0b\u5faa\u73af\u7801<\/li>\n
\u5168 1<\/li>\n
\u5168 0<\/li>\n
1:1<\/li>\n
1:7<\/li>\n
24 \u9009 3<\/li>\n
\u5ef6\u8fdf\u7801\u578b<\/li>\n<\/ul>\n
\u9519\u8bef\u63d2\u5165<\/h1>\n
\n
\u53ef\u901a\u8fc7\u7528\u6237\u754c\u9762\u624b\u52a8\u63d2\u5165\u5355\u4e2a\u9519\u8bef\u3002<\/li>\n
\u53ef\u901a\u8fc7\u7528\u6237\u754c\u9762\u8c03\u6574 1E-3 \u5230 1E-9 \u8303\u56f4\u5185\u7684\u7ebf\u6027\u9519\u8bef\u7387\u3002<\/li>\n<\/ul>\n
\u4e32\u884c\u7f16\u7801<\/h1>\n
\n
\u66fc\u5f7b\u65af\u7279\u7f16\u7801<\/li>\n
NRZI<\/li>\n
FM0<\/li>\n
FM1<\/li>\n
\u5dee\u5206\u66fc\u5f7b\u65af\u7279\u5f02\u6b65\u7f16\u7801<\/li>\n<\/ul>\n
\u65f6\u949f\u5b9a\u65f6<\/h1>\n
\n
\u5185\u90e8<\/strong><\/li>\n<\/ul>\n
\u968f\u6570\u636e\u4e00\u8d77\u53d1\u9001\u7528\u4e8e\u5b9a\u65f6\u7684\u5185\u90e8\u65f6\u949f\u3002<\/p>\n
\n
\u5916\u90e8<\/strong><\/li>\n<\/ul>\n
\u901a\u8fc7 50\u03a9 \u540c\u8f74\u7535\u7f06\u652f\u6301\u7684\u5916\u90e8\u65f6\u949f\u3002<\/p>\n
\n
\u5df2\u6062\u590d<\/strong><\/li>\n<\/ul>\n
\u901a\u8fc7\u63a5\u6536\u7684\u4fe1\u53f7\u63a5\u53e3\u6062\u590d\u7684\u5b9a\u65f6\u3002<\/p>\n
\u7aef\u63a5\u8bbe\u7f6e<\/h1>\n
\n
\u7aef\u63a5<\/strong><\/li>\n<\/ul>\n
\u6a21\u62df\u8bbe\u5907\u4e4b\u95f4\u7684\u901a\u4fe1\u3002\u80fd\u591f\u901a\u8fc7 DCE \u6216 DTE \u64cd\u4f5c\u8bbe\u7f6e\u53d1\u9001\u548c\u63a5\u6536\u6570\u636e\u3002<\/p>\n
\n
\u76d1\u6d4b<\/strong><\/li>\n<\/ul>\n
\u4f7f\u7528\u76d1\u63a7\u7535\u7f06\u76d1\u63a7\u5728\u4e24\u53f0\u901a\u4fe1\u8bbe\u5907\u4e4b\u95f4\u4f20\u8f93\u7684\u6570\u636e\u3002<\/p>\n
\u53d1\u9001\u63a7\u5236\u4fe1\u53f7<\/h1>\n\n\n\n\n\n\n\n\n\n
\u63a5\u53e3<\/td>\n \u53d1\u9001\u63a7\u5236\u4fe1\u53f7<\/td>\n<\/tr>\n
RTS<\/strong><\/td>\n DTR<\/strong><\/td>\n RL<\/strong><\/td>\n LL<\/strong><\/td>\n RS<\/strong><\/td>\n C<\/strong><\/td>\n TR<\/strong><\/td>\n<\/tr>\n
RS-232<\/td>\n \u25a0<\/td>\n \u25a0<\/td>\n \u25a0<\/td>\n \u25a0<\/td>\n <\/td>\n <\/td>\n <\/td>\n<\/tr>\n
RS-530\/A<\/td>\n \u25a0<\/td>\n \u25a0<\/td>\n \u25a0<\/td>\n \u25a0<\/td>\n <\/td>\n <\/td>\n <\/td>\n<\/tr>\n
V.35<\/td>\n \u25a0<\/td>\n \u25a0<\/td>\n \u25a0<\/td>\n \u25a0<\/td>\n <\/td>\n <\/td>\n <\/td>\n<\/tr>\n
X.21<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n \u25a0<\/td>\n <\/td>\n<\/tr>\n
RS-449<\/td>\n <\/td>\n <\/td>\n \u25a0<\/td>\n \u25a0<\/td>\n \u25a0<\/td>\n <\/td>\n \u25a0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\u63a5\u6536\u63a7\u5236\u4fe1\u53f7<\/h1>\n\n\n\n\n\n\n\n\n\n\n
\u63a5\u53e3<\/td>\n \u63a5\u6536\u63a7\u5236\u4fe1\u53f7<\/td>\n<\/tr>\n
CTS<\/strong><\/td>\n DSR<\/strong><\/td>\n RLSD<\/strong><\/td>\n TM<\/strong><\/td>\n RI<\/strong><\/td>\n CS<\/strong><\/td>\n I<\/strong><\/td>\n DM<\/strong><\/td>\n RR<\/strong><\/td>\n IC<\/strong><\/td>\n CI<\/strong><\/td>\n<\/tr>\n
RS-232<\/td>\n \u25a0<\/td>\n \u25a0<\/td>\n \u25a0<\/td>\n \u25a0<\/td>\n \u25a0<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n<\/tr>\n
RS-530<\/td>\n \u25a0<\/td>\n \u25a0<\/td>\n \u25a0<\/td>\n \u25a0<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n<\/tr>\n
RS-530A<\/td>\n \u25a0<\/td>\n \u25a0<\/td>\n \u25a0<\/td>\n \u25a0<\/td>\n \u25a0<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n<\/tr>\n
V.35<\/td>\n \u25a0<\/td>\n \u25a0<\/td>\n \u25a0<\/td>\n \u25a0<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n \u25a0<\/td>\n<\/tr>\n
X.21<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n \u25a0<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n<\/tr>\n
RS-449<\/td>\n <\/td>\n <\/td>\n <\/td>\n \u25a0<\/td>\n <\/td>\n \u25a0<\/td>\n <\/td>\n \u25a0<\/td>\n \u25a0<\/td>\n \u25a0<\/td>\n <\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\u7535\u7f06\u8ba2\u8d2d\u4fe1\u606f<\/h1>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u7535\u7f06\u4ea7\u54c1\u76ee\u5f55\u53f7<\/strong><\/td>\n \u7535\u7f06\u63cf\u8ff0<\/strong><\/td>\n<\/tr>\n
CB-44348<\/td>\n V.24 EIA-530 Y \u76d1\u63a7\u7535\u7f06 – 6 \u82f1\u5c3a\u957f<\/td>\n<\/tr>\n
CB-21148994-002<\/td>\n \u9ad8\u901f V.24\/EIA-530 DTE\/DCE \u4eff\u771f\u7535\u7f06 – 6 \u82f1\u5c3a\u957f\uff0cY \u5f62\u5206\u53c9 24 \u82f1\u5bf8\u957f\u5206\u652f<\/td>\n<\/tr>\n
CB-21144332-001<\/td>\n V.36 DTE\/DCE \u4eff\u771f\u73af\u6307\u793a\u7535\u7f06 – 72 \u82f1\u5bf8\u957f Y \u5f62\u5206\u53c9 12 \u82f1\u5bf8<\/td>\n<\/tr>\n
CB-21144332-002<\/td>\n V.36 DTE\/DCE \u4eff\u771f\u73af\u6307\u793a\u7535\u7f06 – 72 \u82f1\u5bf8\u957f Y \u5f62\u5206\u53c9 24 \u82f1\u5bf8<\/td>\n<\/tr>\n
CB-44347<\/td>\n V.36 \u76d1\u63a7\u7535\u7f06 – 6 \u82f1\u5c3a\u957f<\/td>\n<\/tr>\n
CB-21149199-001<\/td>\n \u9ad8\u901f X.21 DTE\/DCE \u4eff\u771f\u7535\u7f06 – 6 \u82f1\u5c3a\u957f Y \u5f62\u5206\u53c9 12 \u82f1\u5bf8\u957f\u5206\u652f<\/td>\n<\/tr>\n
CB-44345<\/td>\n X.21 \u76d1\u63a7\u7535\u7f06 – 10 Mhz \u64cd\u4f5c – 6 \u82f1\u5c3a\u957f<\/td>\n<\/tr>\n
CB-21148995-002<\/td>\n \u9ad8\u901f V.35 DTE\/DCE \u4eff\u771f\u7535\u7f06 – 6 \u82f1\u5c3a\u957f Y \u5f62\u5206\u53c9 24 \u82f1\u5bf8\u957f\u5206\u652f<\/td>\n<\/tr>\n
CB-44341<\/td>\n V.35 \u76d1\u63a7\u7535\u7f06 – 6 \u82f1\u5c3a\u957f<\/td>\n<\/tr>\n
CB-DCCLK<\/td>\n DATACOM PIM \u65f6\u949f\u9002\u914d\u5668\u7535\u7f06<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
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VIAVI \u6570\u636e\u901a\u4fe1\u6269\u5c55\u6a21\u5757 (DEM) \u548c MTS-5800 \u7684\u7ec4\u5408\u4e3a\u7535\u529b\u8fd0\u8425\u5546\u63d0\u4f9b\u4e86\u5e7f\u6cdb\u7684\u6d4b\u8bd5\u80fd\u529b\uff0c\u53ef\u7528\u4e8e\u6d4b\u91cf\u4f20\u7edf\u7f51\u7edc\u6280\u672f\uff08\u6570\u636e\u901a\u4fe1\u3001SONET\/SDH\u3001T1\/E1 \u7b49\uff09\u548c\u65b0\u6280\u672f\uff08\u4ee5\u592a\u7f51\u3001C37.94\u7b49\uff09\u3002DEM \u6269\u5c55\u4e86\u5df2\u7ecf\u7528\u9014\u5e7f\u6cdb\u7684 MTS-5800 \u7684\u6d4b\u8bd5\u8303\u56f4\uff0c\u5141\u8bb8\u6280\u672f\u4eba\u5458\u548c\u5de5\u7a0b\u5e08\u7528\u5f88\u5c11\u7684\u8bbe\u5907\u8fdb\u884c\u5e7f\u6cdb\u7684\u6d4b\u8bd5\u3002<\/p>\n","protected":false},"featured_media":1879,"template":"","meta":[],"product_brand":[],"product_cat":[129,51],"product_tag":[241,240,239],"class_list":{"0":"post-1922","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-viavi","7":"product_cat-net_multiser","8":"product_tag-v-28-24","9":"product_tag-v-35","10":"product_tag-239","12":"first","13":"instock","14":"shipping-taxable","15":"product-type-simple"},"yoast_head":"\r\nDEM-\u4f4e\u901f\u6570\u636e\u63a5\u53e3\u901a\u4fe1\u6269\u5c55\u6a21\u5757 - 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