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\u003Cstrong>以太网\u003C\u002Fstrong> 连接或 \u003Cstrong>RS-232串口\u003C\u002Fstrong> 连接进行远程控制。网络设置可通过前面板按键手动更改，也可使用NET远程命令远程修改。网络接口可设置为DHCP模式或固定地址模式。通过零调制解调器型串口线缆连接RS-232至测试系统，支持最高 \u003Cstrong>155200波特率\u003C\u002Fstrong>。波特率可通过前面板按键手动更改，也可使用SERIAL远程命令远程修改。\u003C\u002Fp>\u003Ch3>远程命令集\u003C\u002Fh3>\u003Cp>最新一代固件手册可下载获取，手册列出了所有远程命令及其语法和示例。固件采用简洁的 \u003Cstrong>ASCII格式\u003C\u002Fstrong> 远程命令。如果连接到JFW测试系统并发送HELP命令，系统将返回该测试系统所有远程命令的列表。\u003C\u002Fp>\u003Ch3>关键参数\u003C\u002Fh3>\u003Cul>\u003Cli>\u003Cstrong>阻抗：\u003C\u002Fstrong>75 Ohms\u003C\u002Fli>\u003Cli>\u003Cstrong>配置：\u003C\u002Fstrong>2个衰减器\u003C\u002Fli>\u003Cli>\u003Cstrong>衰减器类型：\u003C\u002Fstrong>固态步进衰减器\u003C\u002Fli>\u003Cli>\u003Cstrong>总衰减量：\u003C\u002Fstrong>127 dB\u003C\u002Fli>\u003Cli>\u003Cstrong>步进精度：\u003C\u002Fstrong>1 dB\u003C\u002Fli>\u003Cli>\u003Cstrong>频率范围：\u003C\u002Fstrong>450 MHz - 2150 MHz\u003C\u002Fli>\u003Cli>\u003Cstrong>手动控制：\u003C\u002Fstrong>显示屏和按键\u003C\u002Fli>\u003Cli>\u003Cstrong>远程控制：\u003C\u002Fstrong>以太网、RS-232\u003C\u002Fli>\u003Cli>\u003Cstrong>连接器：\u003C\u002Fstrong>75 Ohm F型母头同轴射频连接器\u003C\u002Fli>\u003Cli>\u003Cstrong>信号方向：\u003C\u002Fstrong>双向\u003C\u002Fli>\u003C\u002Ful>","[{\"name\":\"75PA-052-F-attenuator-assembly-benchtop-75-ohm-rev-a.jpg\",\"preview\":\"https:\u002F\u002Fzhht-images.oss-cn-beijing.aliyuncs.com\u002Fimage\u002F2026\u002F05\u002F28\u002Fa82f2c0f-0acf-473c-83a3-e609b9a46698.jpg\",\"size\":231563,\"thumbnail\":\"https:\u002F\u002Fzhht-images.oss-cn-beijing.aliyuncs.com\u002Fimage\u002F2026\u002F05\u002F28\u002Fa82f2c0f-0acf-473c-83a3-e609b9a46698.jpg\",\"url\":\"image\u002F2026\u002F05\u002F28\u002Fa82f2c0f-0acf-473c-83a3-e609b9a46698.jpg\"}]","JFW 75PA-052 双固态步进衰减器组件 450-2150MHz 0-127dB 75欧姆","JFW Industries 75PA-052 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19:17:36","2026-05-28 19:17:35",153527,3739,124,"153527","JFW Industries 75PA-076 双通道继电器步进衰减器组件","75PA-076","JFW Industries 75PA-076 是一款台式双通道衰减器组件，包含两个75欧姆继电器步进衰减器，衰减范围0至63dB，步进1dB，工作频率DC-2150 MHz，支持手动及以太网\u002FRS-232远程控制，配备F型母头同轴射频连接器。","\u003Ch3>产品概述\u003C\u002Fh3>\u003Cp>75PA-076 是 JFW Industries 推出的一款台式衰减器组件，内含\u003Cstrong>2个继电器步进衰减器\u003C\u002Fstrong>，阻抗为\u003Cstrong>75欧姆\u003C\u002Fstrong>。衰减范围为\u003Cstrong>0至63dB\u003C\u002Fstrong>，步进\u003Cstrong>1dB\u003C\u002Fstrong>，工作频率覆盖\u003Cstrong>DC至2150 MHz\u003C\u002Fstrong>。衰减器支持双向传输，可通过前面板手动控制或远程控制。设备配备75欧姆F型母头同轴射频连接器，连接器位于前面板上。\u003C\u002Fp>\u003Ch3>默认设置\u003C\u002Fh3>\u003Cp>配备以太网\u002FRS-232远程控制的衰减器组件出厂时网络接口默认设置为\u003Cstrong>DHCP模式\u003C\u002Fstrong>，串口波特率默认设置为\u003Cstrong>57600\u003C\u002Fstrong>。这些设置可通过前面板键盘手动更改，也可通过 NET 或 SERIAL 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命令时，系统将返回该测试系统所有远程命令的列表。\u003C\u002Fp>","[{\"name\":\"75PA-076-F-attenuator-assembly-benchtop-75-ohm-rev-a.jpg\",\"preview\":\"https:\u002F\u002Fzhht-images.oss-cn-beijing.aliyuncs.com\u002Fimage\u002F2026\u002F05\u002F28\u002F8394dbd1-e9ab-4383-b674-4c607b7cad1f.jpg\",\"size\":176027,\"thumbnail\":\"https:\u002F\u002Fzhht-images.oss-cn-beijing.aliyuncs.com\u002Fimage\u002F2026\u002F05\u002F28\u002F8394dbd1-e9ab-4383-b674-4c607b7cad1f.jpg\",\"url\":\"image\u002F2026\u002F05\u002F28\u002F8394dbd1-e9ab-4383-b674-4c607b7cad1f.jpg\"}]","JFW Industries 75PA-076 双通道继电器步进衰减器组件 DC-2150MHz","JFW Industries 75PA-076 台式双通道75欧姆继电器步进衰减器组件，衰减范围0-63dB，1dB步进，频率DC-2150 MHz，支持以太网和RS-232远程控制，配备F型母头射频连接器。",{"createBy":6,"createTime":6,"updateBy":6,"updateTime":6,"remark":6,"scope":6,"id":66,"siteId":6,"slug":67,"name":68,"country":6,"images":6,"files":6,"subtitle":6,"description":6,"status":6,"isHot":6,"sort":6,"seoTitle":6,"seoDescription":6,"seoKeywords":6},{"createBy":6,"createTime":6,"updateBy":6,"updateTime":6,"remark":6,"scope":6,"id":221,"siteId":6,"parentId":6,"ancestors":6,"slug":232,"name":233,"images":6,"files":6,"subtitle":6,"isHot":6,"status":6,"sort":6,"seoTitle":6,"seoDescription":6,"seoKeywords":6},"124","继电器",{"createBy":6,"createTime":235,"updateBy":6,"updateTime":236,"remark":6,"scope":6,"id":237,"siteId":7,"sourceId":238,"categoryId":188,"brandId":66,"slug":239,"name":240,"code":6,"model":241,"subtitle":242,"description":243,"images":244,"files":6,"attributes":6,"price":6,"currency":6,"isHot":6,"status":13,"sort":13,"seoTitle":245,"seoDescription":246,"seoKeywords":6,"brand":247,"category":248},"2026-05-28 19:17:03","2026-05-28 19:17:02",153526,3738,"153526","JFW Industries 75PA-084 四通道固态步进衰减器组件","75PA-084","JFW 75PA-084是一款台式四通道固态步进衰减器组件，阻抗75欧姆，频率范围5-1650 MHz，衰减范围0-63 dB（1 dB步进），支持前面板手动控制及以太网\u002FRS-232远程控制。","\u003Ch3>产品概述\u003C\u002Fh3>\u003Cp>JFW Industries 型号 \u003Cstrong>75PA-084\u003C\u002Fstrong> 是一款台式衰减器组件，内置4个75欧姆固态步进衰减器。衰减范围为0至63 dB，步进精度为1 dB，工作频率覆盖5-1650 MHz。衰减器为双向设计，支持手动和远程控制。设备配备75欧姆F型母头同轴射频连接器，所有射频连接器均位于前面板。\u003C\u002Fp>\u003Ch3>默认设置\u003C\u002Fh3>\u003Cp>配备以太网\u002FRS-232远程控制的衰减器组件出厂时，网络接口默认设置为DHCP模式，串行波特率默认设置为57600。这些设置可通过前面板按键手动更改，也可使用NET或SERIAL远程命令进行远程修改。前面板显示屏将显示当前的网络模式、IP地址和波特率设置。\u003C\u002Fp>\u003Ch3>手动衰减器控制\u003C\u002Fh3>\u003Cp>手动控制菜单允许用户设置\u002F读取衰减值、对衰减器进行渐变操作，或使用两个衰减器执行切换操作。\u003C\u002Fp>\u003Ch3>远程衰减器控制\u003C\u002Fh3>\u003Cp>该衰减器组件可通过以太网连接或串行连接（RS-232）进行远程控制。网络设置可通过按键手动更改，也可使用NET远程命令进行修改。网络接口可设置为DHCP模式或固定地址模式。通过零调制解调器型串行电缆将RS-232连接至测试系统。支持高达155200波特率，波特率可通过按键手动更改或使用SERIAL远程命令修改。\u003C\u002Fp>\u003Ch3>远程命令集\u003C\u002Fh3>\u003Cp>最新一代固件的固件手册可供下载，其中列出了所有远程命令及其语法和示例。固件采用简单的ASCII格式远程命令。当连接至JFW测试系统并发送HELP命令时，系统将返回该特定测试系统的所有远程命令列表。\u003C\u002Fp>\u003Ch3>核心参数\u003C\u002Fh3>\u003Cul>\u003Cli>\u003Cstrong>阻抗：\u003C\u002Fstrong>75 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MHz\u003C\u002Fli>\u003Cli>\u003Cstrong>手动控制：\u003C\u002Fstrong>显示屏与按键\u003C\u002Fli>\u003Cli>\u003Cstrong>远程控制：\u003C\u002Fstrong>以太网、RS-232\u003C\u002Fli>\u003Cli>\u003Cstrong>连接器：\u003C\u002Fstrong>75欧姆F型母头同轴射频连接器（前面板）\u003C\u002Fli>\u003C\u002Ful>","[{\"name\":\"75PA-084-F-attenuator-assembly-benchtop-75-ohm-rev-a.jpg\",\"preview\":\"https:\u002F\u002Fzhht-images.oss-cn-beijing.aliyuncs.com\u002Fimage\u002F2026\u002F05\u002F28\u002Fc22a8044-a38d-4cd4-b7aa-26e7f1f4df71.jpg\",\"size\":178084,\"thumbnail\":\"https:\u002F\u002Fzhht-images.oss-cn-beijing.aliyuncs.com\u002Fimage\u002F2026\u002F05\u002F28\u002Fc22a8044-a38d-4cd4-b7aa-26e7f1f4df71.jpg\",\"url\":\"image\u002F2026\u002F05\u002F28\u002Fc22a8044-a38d-4cd4-b7aa-26e7f1f4df71.jpg\"}]","JFW Industries 75PA-084 四通道固态步进衰减器组件 5-1650MHz 75欧姆","JFW Industries 75PA-084四通道固态步进衰减器组件，75欧姆阻抗，5-1650 MHz频率范围，0-63 dB衰减（1 dB步进），支持以太网和RS-232远程控制，适用于射频测试系统。",{"createBy":6,"createTime":6,"updateBy":6,"updateTime":6,"remark":6,"scope":6,"id":66,"siteId":6,"slug":67,"name":68,"country":6,"images":6,"files":6,"subtitle":6,"description":6,"status":6,"isHot":6,"sort":6,"seoTitle":6,"seoDescription":6,"seoKeywords":6},{"createBy":6,"createTime":6,"updateBy":6,"updateTime":6,"remark":6,"scope":6,"id":188,"siteId":6,"parentId":6,"ancestors":6,"slug":199,"name":200,"images":6,"files":6,"subtitle":6,"isHot":6,"status":6,"sort":6,"seoTitle":6,"seoDescription":6,"seoKeywords":6},{"createBy":6,"createTime":250,"updateBy":6,"updateTime":250,"remark":6,"scope":6,"id":251,"siteId":7,"sourceId":252,"categoryId":188,"brandId":66,"slug":253,"name":254,"code":6,"model":255,"subtitle":256,"description":257,"images":258,"files":6,"attributes":6,"price":6,"currency":6,"isHot":6,"status":13,"sort":13,"seoTitle":259,"seoDescription":260,"seoKeywords":6,"brand":261,"category":262},"2026-05-28 19:16:36",153525,3737,"153525","JFW Industries 75PA-086 三通道固态步进衰减器组件","75PA-086","JFW 75PA-086 是一款台式衰减器组件，内置3个75欧姆固态步进衰减器，衰减范围0-63dB（1dB步进），工作频率5-1650 MHz，支持手动及以太网\u002FRS-232远程控制，配备F型母头射频连接器。","\u003Ch3>产品概述\u003C\u002Fh3>\u003Cp>JFW Industries \u003Cstrong>75PA-086\u003C\u002Fstrong> 是一款台式衰减器组件，内置3个\u003Cstrong>固态步进衰减器\u003C\u002Fstrong>，阻抗为75欧姆。衰减范围为0至63dB，步进精度为1dB，工作频率覆盖\u003Cstrong>5-1650 MHz\u003C\u002Fstrong>。衰减器支持双向信号传输，可通过手动或远程控制方式进行操作。设备配备75欧姆F型母头同轴射频连接器，所有射频连接器均位于前面板。\u003C\u002Fp>\u003Ch3>默认设置\u003C\u002Fh3>\u003Cp>配备以太网\u002FRS-232远程控制功能的衰减器组件出厂时网络接口默认设置为\u003Cstrong>DHCP模式\u003C\u002Fstrong>，串口波特率默认设置为\u003Cstrong>57600\u003C\u002Fstrong>。这些设置可通过前面板键盘手动更改，也可通过NET或SERIAL远程命令进行远程修改。前面板显示屏将实时显示当前网络模式、IP地址和波特率设置。\u003C\u002Fp>\u003Ch3>手动衰减器控制\u003C\u002Fh3>\u003Cp>手动控制菜单支持以下操作：\u003C\u002Fp>\u003Cul>\u003Cli>设置或读取单个衰减器的衰减量\u003C\u002Fli>\u003Cli>对衰减器进行渐变（Fade）操作\u003C\u002Fli>\u003Cli>使用两个衰减器执行切换（Handover）操作\u003C\u002Fli>\u003C\u002Ful>\u003Ch3>远程衰减器控制\u003C\u002Fh3>\u003Cp>该衰减器组件支持通过\u003Cstrong>以太网\u003C\u002Fstrong>或\u003Cstrong>RS-232串口\u003C\u002Fstrong>进行远程控制。网络设置可通过键盘手动更改，也可使用NET远程命令进行修改。网络接口可设置为DHCP模式或固定地址（Fixed Address）模式。RS-232连接使用零调制解调器（Null Modem）串口线缆连接至测试系统，支持最高\u003Cstrong>155200波特率\u003C\u002Fstrong>。波特率可通过键盘手动更改，也可通过SERIAL远程命令修改。\u003C\u002Fp>\u003Ch3>远程命令集\u003C\u002Fh3>\u003Cp>最新一代固件手册（firmware manual）可供下载查阅。该手册详细列出了所有远程命令的语法格式和使用示例。固件采用简单的\u003Cstrong>ASCII格式\u003C\u002Fstrong>远程命令。当连接至JFW测试系统并发送HELP命令时，系统将返回该特定测试系统的所有可用远程命令列表。\u003C\u002Fp>","[{\"name\":\"75PA-086-F-attenuator-assembly-benchtop-75-ohm-rev-a.jpg\",\"preview\":\"https:\u002F\u002Fzhht-images.oss-cn-beijing.aliyuncs.com\u002Fimage\u002F2026\u002F05\u002F28\u002Fc851c83b-9575-4f12-a57b-9bbbff2c8dea.jpg\",\"size\":173362,\"thumbnail\":\"https:\u002F\u002Fzhht-images.oss-cn-beijing.aliyuncs.com\u002Fimage\u002F2026\u002F05\u002F28\u002Fc851c83b-9575-4f12-a57b-9bbbff2c8dea.jpg\",\"url\":\"image\u002F2026\u002F05\u002F28\u002Fc851c83b-9575-4f12-a57b-9bbbff2c8dea.jpg\"}]","JFW Industries 75PA-086 三通道固态步进衰减器组件 5-1650MHz 0-63dB","JFW 75PA-086 台式三通道衰减器组件，75欧姆阻抗，固态步进衰减器，衰减范围0-63dB（1dB步进），频率5-1650 MHz，支持手动键盘及以太网\u002FRS-232远程控制，F型母头射频连接器，双向信号传输。",{"createBy":6,"createTime":6,"updateBy":6,"updateTime":6,"remark":6,"scope":6,"id":66,"siteId":6,"slug":67,"name":68,"country":6,"images":6,"files":6,"subtitle":6,"description":6,"status":6,"isHot":6,"sort":6,"seoTitle":6,"seoDescription":6,"seoKeywords":6},{"createBy":6,"createTime":6,"updateBy":6,"updateTime":6,"remark":6,"scope":6,"id":188,"siteId":6,"parentId":6,"ancestors":6,"slug":199,"name":200,"images":6,"files":6,"subtitle":6,"isHot":6,"status":6,"sort":6,"seoTitle":6,"seoDescription":6,"seoKeywords":6},{"createBy":6,"createTime":264,"updateBy":6,"updateTime":264,"remark":6,"scope":6,"id":265,"siteId":7,"sourceId":266,"categoryId":188,"brandId":66,"slug":267,"name":268,"code":6,"model":269,"subtitle":270,"description":271,"images":272,"files":6,"attributes":6,"price":6,"currency":6,"isHot":6,"status":13,"sort":13,"seoTitle":273,"seoDescription":274,"seoKeywords":6,"brand":275,"category":276},"2026-05-28 19:16:07",153524,3736,"153524","JFW Industries 75PA-088 双衰减器组件","75PA-088","JFW 75PA-088是一款台式双衰减器组件，配备两个继电器步进衰减器，阻抗75欧姆，衰减范围0-95.5dB，步进0.5dB，频率覆盖DC至1000MHz，支持手动及以太网\u002FRS-232远程控制。","\u003Ch3>产品概述\u003C\u002Fh3>\u003Cp>JFW Industries \u003Cstrong>75PA-088\u003C\u002Fstrong> 是一款台式衰减器组件，内置两个继电器步进衰减器，阻抗为\u003Cstrong>75欧姆\u003C\u002Fstrong>。衰减范围为\u003Cstrong>0至95.5 dB\u003C\u002Fstrong>，步进为\u003Cstrong>0.5 dB\u003C\u002Fstrong>，工作频率覆盖\u003Cstrong>DC至1000 MHz\u003C\u002Fstrong>。该组件支持手动和远程控制，配备75欧姆F型母头同轴射频连接器，连接器位于前面板。衰减器为双向设计，输入\u002F输出标识仅为命名惯例。\u003C\u002Fp>\u003Ch3>默认设置\u003C\u002Fh3>\u003Cp>配备以太网\u002FRS-232远程控制的衰减器组件出厂时，网络接口默认设置为DHCP模式，串口波特率默认设置为57600。这些设置可通过前面板按键手动更改，也可使用NET或SERIAL远程命令进行更改。前面板显示屏可显示当前的网络模式、IP地址和波特率设置。\u003C\u002Fp>\u003Ch3>手动衰减器控制\u003C\u002Fh3>\u003Cp>手动控制菜单允许您将每个衰减器地址设置为特定的衰减值。滚动浏览衰减器地址编号时，将显示当前的dB设置。\u003C\u002Fp>\u003Ch3>远程衰减器控制\u003C\u002Fh3>\u003Cp>该衰减器组件可通过以太网连接或串口连接（如RS-232）进行远程控制。网络设置可通过按键手动更改，也可使用NET远程命令进行更改。网络接口可设置为DHCP模式或固定地址模式。通过零调制解调器型串口电缆与测试系统建立RS-232连接，支持高达\u003Cstrong>155200波特率\u003C\u002Fstrong>。波特率可通过按键手动更改，也可使用SERIAL远程命令进行更改。\u003C\u002Fp>\u003Ch3>远程命令集\u003C\u002Fh3>\u003Cp>最新一代固件的固件手册可供下载。该手册列出了所有远程命令及其语法和示例。固件使用简单的ASCII格式远程命令。如果连接到JFW测试系统并发送HELP命令，系统将返回该特定测试系统的所有远程命令列表。\u003C\u002Fp>","[{\"name\":\"75PA-088-F-attenuator-assembly-benchtop-75-ohm-rev-a.jpg\",\"preview\":\"https:\u002F\u002Fzhht-images.oss-cn-beijing.aliyuncs.com\u002Fimage\u002F2026\u002F05\u002F28\u002F784f9ca4-7d9d-433b-8359-bab2249af9b4.jpg\",\"size\":165528,\"thumbnail\":\"https:\u002F\u002Fzhht-images.oss-cn-beijing.aliyuncs.com\u002Fimage\u002F2026\u002F05\u002F28\u002F784f9ca4-7d9d-433b-8359-bab2249af9b4.jpg\",\"url\":\"image\u002F2026\u002F05\u002F28\u002F784f9ca4-7d9d-433b-8359-bab2249af9b4.jpg\"}]","JFW Industries 75PA-088 双继电器步进衰减器组件 DC-1000MHz","JFW 75PA-088双衰减器组件，75欧姆阻抗，0-95.5dB衰减范围，0.5dB步进，DC-1000MHz频率，支持手动及以太网\u002FRS-232远程控制，适用于射频测试系统。",{"createBy":6,"createTime":6,"updateBy":6,"updateTime":6,"remark":6,"scope":6,"id":66,"siteId":6,"slug":67,"name":68,"country":6,"images":6,"files":6,"subtitle":6,"description":6,"status":6,"isHot":6,"sort":6,"seoTitle":6,"seoDescription":6,"seoKeywords":6},{"createBy":6,"createTime":6,"updateBy":6,"updateTime":6,"remark":6,"scope":6,"id":188,"siteId":6,"parentId":6,"ancestors":6,"slug":199,"name":200,"images":6,"files":6,"subtitle":6,"isHot":6,"status":6,"sort":6,"seoTitle":6,"seoDescription":6,"seoKeywords":6},{"createBy":6,"createTime":278,"updateBy":6,"updateTime":279,"remark":6,"scope":6,"id":280,"siteId":7,"sourceId":281,"categoryId":188,"brandId":66,"slug":282,"name":283,"code":6,"model":284,"subtitle":285,"description":286,"images":287,"files":6,"attributes":6,"price":6,"currency":6,"isHot":6,"status":13,"sort":13,"seoTitle":288,"seoDescription":289,"seoKeywords":6,"brand":290,"category":291},"2026-05-28 19:15:40","2026-05-28 19:15:39",153523,3735,"153523","JFW Industries 75PA-132 双通道固态步进衰减器组件","75PA-132","JFW 75PA-132是一款台式双通道固态步进衰减器组件，阻抗75欧姆，频率范围5-3000 MHz，衰减范围0-95 dB，步进1 dB。支持手动及以太网\u002FRS-232远程控制，配备75欧姆F型母头同轴射频连接器，双向工作，适用于各类射频测试系统。","\u003Ch3>产品概述\u003C\u002Fh3>\u003Cp>75PA-132 是 JFW Industries 推出的一款台式衰减器组件，内置\u003Cstrong>2个固态步进衰减器\u003C\u002Fstrong>，阻抗为\u003Cstrong>75欧姆\u003C\u002Fstrong>。衰减范围为\u003Cstrong>0至95 dB\u003C\u002Fstrong>，步进精度\u003Cstrong>1 dB\u003C\u002Fstrong>，工作频率覆盖\u003Cstrong>5-3000 MHz\u003C\u002Fstrong>。衰减器支持双向工作，可通过手动或远程方式进行控制。设备配备\u003Cstrong>75欧姆F型母头同轴射频连接器\u003C\u002Fstrong>，所有射频连接器均位于前面板，操作便捷。\u003C\u002Fp>\u003Ch3>默认设置\u003C\u002Fh3>\u003Cp>配备以太网\u002FRS-232远程控制功能的衰减器组件出厂时，网络接口默认设置为\u003Cstrong>DHCP模式\u003C\u002Fstrong>，串口波特率默认设置为\u003Cstrong>57600\u003C\u002Fstrong>。这些设置可通过前面板键盘手动更改，也可通过 NET 或 SERIAL 远程命令进行修改。前面板显示屏将实时显示当前网络模式、IP地址和波特率等设置信息。\u003C\u002Fp>\u003Ch3>手动衰减器控制\u003C\u002Fh3>\u003Cp>手动控制菜单功能丰富，允许用户执行以下操作：\u003C\u002Fp>\u003Cul>\u003Cli>设置或读取单个衰减器的衰减值\u003C\u002Fli>\u003Cli>对衰减器执行渐变（Fade）操作\u003C\u002Fli>\u003Cli>使用两个衰减器执行切换（Handover）操作\u003C\u002Fli>\u003C\u002Ful>\u003Ch3>远程衰减器控制\u003C\u002Fh3>\u003Cp>该衰减器组件可通过\u003Cstrong>以太网连接\u003C\u002Fstrong>或\u003Cstrong>串口连接（RS-232）\u003C\u002Fstrong>进行远程控制。网络设置可通过键盘手动更改或使用 NET 远程命令修改，网络接口可设置为\u003Cstrong>DHCP模式\u003C\u002Fstrong>或\u003Cstrong>固定地址模式\u003C\u002Fstrong>。通过零调制解调器型串口电缆实现与测试系统的 RS-232 连接，支持最高\u003Cstrong>155200波特率\u003C\u002Fstrong>，波特率可通过键盘手动更改或使用 SERIAL 远程命令修改。\u003C\u002Fp>\u003Ch3>远程命令集\u003C\u002Fh3>\u003Cp>JFW Industries 最新一代固件的固件手册可供下载，其中详细列出了所有远程命令及其语法和使用示例。固件采用简单的 \u003Cstrong>ASCII 格式远程命令\u003C\u002Fstrong>，易于集成和开发。当连接到 JFW 测试系统并发送 HELP 命令时，系统将自动返回该特定测试系统的所有可用远程命令列表，方便用户快速查阅和调用。\u003C\u002Fp>","[{\"name\":\"75PA-132-F-attenuator-assembly-benchtop-75-ohm.jpg\",\"preview\":\"https:\u002F\u002Fzhht-images.oss-cn-beijing.aliyuncs.com\u002Fimage\u002F2026\u002F05\u002F28\u002Faf9f3e77-9b0f-495f-95ad-7be276b67758.jpg\",\"size\":36477,\"thumbnail\":\"https:\u002F\u002Fzhht-images.oss-cn-beijing.aliyuncs.com\u002Fimage\u002F2026\u002F05\u002F28\u002Faf9f3e77-9b0f-495f-95ad-7be276b67758.jpg\",\"url\":\"image\u002F2026\u002F05\u002F28\u002Faf9f3e77-9b0f-495f-95ad-7be276b67758.jpg\"}]","JFW Industries 75PA-132 双通道固态步进衰减器组件 5-3000MHz 75欧姆","JFW Industries 75PA-132双通道固态步进衰减器组件，75欧姆阻抗，频率5-3000 MHz，衰减0-95 dB\u002F1 dB步进，支持手动及以太网\u002FRS-232远程控制，双向工作，台式设计，适用于射频测试系统。",{"createBy":6,"createTime":6,"updateBy":6,"updateTime":6,"remark":6,"scope":6,"id":66,"siteId":6,"slug":67,"name":68,"country":6,"images":6,"files":6,"subtitle":6,"description":6,"status":6,"isHot":6,"sort":6,"seoTitle":6,"seoDescription":6,"seoKeywords":6},{"createBy":6,"createTime":6,"updateBy":6,"updateTime":6,"remark":6,"scope":6,"id":188,"siteId":6,"parentId":6,"ancestors":6,"slug":199,"name":200,"images":6,"files":6,"subtitle":6,"isHot":6,"status":6,"sort":6,"seoTitle":6,"seoDescription":6,"seoKeywords":6},{"createBy":6,"createTime":293,"updateBy":6,"updateTime":293,"remark":6,"scope":6,"id":294,"siteId":7,"sourceId":295,"categoryId":188,"brandId":66,"slug":296,"name":297,"code":6,"model":298,"subtitle":299,"description":300,"images":301,"files":6,"attributes":6,"price":6,"currency":6,"isHot":6,"status":13,"sort":13,"seoTitle":302,"seoDescription":303,"seoKeywords":6,"brand":304,"category":305},"2026-05-28 19:15:05",153522,3734,"153522","JFW Industries 75PA-090 四通道固态步进衰减器组件","75PA-090","JFW Industries 75PA-090 是一款 75 欧姆台式衰减器组件，内置四个固态步进衰减器，衰减范围 0-63dB，步进 1dB，频率覆盖 5-1000 MHz，支持手动拨杆与以太网\u002FRS-232 远程控制。","\u003Ch3>产品概述\u003C\u002Fh3>\u003Cp>JFW Industries 75PA-090 是一款 75 欧姆台式衰减器组件，内置四个固态步进衰减器。每个衰减器的衰减范围为 0 至 63dB，步进精度为 1dB，工作频率覆盖 5-1000 MHz。衰减器支持手动和远程控制，前面板实时显示各通道当前衰减值，适用于多种射频测试场景。\u003C\u002Fp>\u003Ch3>主要技术参数\u003C\u002Fh3>\u003Cul>\u003Cli>\u003Cstrong>阻抗：\u003C\u002Fstrong>75 欧姆\u003C\u002Fli>\u003Cli>\u003Cstrong>配置：\u003C\u002Fstrong>4 路固态步进衰减器\u003C\u002Fli>\u003Cli>\u003Cstrong>衰减范围：\u003C\u002Fstrong>0 至 63 dB\u003C\u002Fli>\u003Cli>\u003Cstrong>步进精度：\u003C\u002Fstrong>1 dB\u003C\u002Fli>\u003Cli>\u003Cstrong>频率范围：\u003C\u002Fstrong>5 MHz 至 1000 MHz\u003C\u002Fli>\u003Cli>\u003Cstrong>射频连接器：\u003C\u002Fstrong>F 型母头 75 欧姆同轴连接器（前面板安装，双向设计，无输入\u002F输出方向区分）\u003C\u002Fli>\u003C\u002Ful>\u003Ch3>手动衰减器控制\u003C\u002Fh3>\u003Cp>前面板配备四个手动拨杆开关，每个开关对应控制一个衰减器。拨杆为瞬时型开关，支持轻触单步调节或长按连续调节两种操作模式。每个衰减器当前的 dB 设定值直接显示在对应拨杆开关上方的前面板显示屏上。当远程用户修改衰减值时，前面板也会实时同步显示所有变更。\u003C\u002Fp>\u003Ch3>远程衰减器控制\u003C\u002Fh3>\u003Cp>该衰减器组件可通过以太网连接或串口连接（RS-232）进行远程控制。网络接口支持 DHCP 模式或固定地址模式，出厂默认设置为 DHCP 模式。RS-232 连接使用 Null Modem 交叉串口线缆，波特率最高支持 155200 Baud。\u003C\u002Fp>\u003Ch3>远程指令集\u003C\u002Fh3>\u003Cp>最新一代固件的 firmware manual 可在线下载获取，手册中详细列出了所有远程指令的语法格式与使用示例。固件采用简单的 ASCII 格式远程指令。连接到 JFW 测试系统后，发送 HELP 指令即可获得该系统支持的所有远程指令列表。\u003C\u002Fp>","[{\"name\":\"75PA-090-F-attenuator-assembly-benchtop-75-ohm-rev-a.jpg\",\"preview\":\"https:\u002F\u002Fzhht-images.oss-cn-beijing.aliyuncs.com\u002Fimage\u002F2026\u002F05\u002F28\u002F88a7f9b2-1f1c-4aed-aa52-11e74e86f62c.jpg\",\"size\":213674,\"thumbnail\":\"https:\u002F\u002Fzhht-images.oss-cn-beijing.aliyuncs.com\u002Fimage\u002F2026\u002F05\u002F28\u002F88a7f9b2-1f1c-4aed-aa52-11e74e86f62c.jpg\",\"url\":\"image\u002F2026\u002F05\u002F28\u002F88a7f9b2-1f1c-4aed-aa52-11e74e86f62c.jpg\"}]","JFW Industries 75PA-090 四通道固态步进衰减器组件 | 75欧姆 5-1000MHz","JFW Industries 75PA-090 四通道 75 欧姆台式衰减器组件，内置 4 路固态步进衰减器，衰减范围 0-63dB（1dB 步进），频率 5-1000 MHz，支持手动拨杆与以太网\u002FRS-232 远程控制，前面板实时显示衰减值。",{"createBy":6,"createTime":6,"updateBy":6,"updateTime":6,"remark":6,"scope":6,"id":66,"siteId":6,"slug":67,"name":68,"country":6,"images":6,"files":6,"subtitle":6,"description":6,"status":6,"isHot":6,"sort":6,"seoTitle":6,"seoDescription":6,"seoKeywords":6},{"createBy":6,"createTime":6,"updateBy":6,"updateTime":6,"remark":6,"scope":6,"id":188,"siteId":6,"parentId":6,"ancestors":6,"slug":199,"name":200,"images":6,"files":6,"subtitle":6,"isHot":6,"status":6,"sort":6,"seoTitle":6,"seoDescription":6,"seoKeywords":6},{"createBy":6,"createTime":307,"updateBy":6,"updateTime":308,"remark":6,"scope":6,"id":309,"siteId":7,"sourceId":310,"categoryId":188,"brandId":66,"slug":311,"name":312,"code":6,"model":313,"subtitle":314,"description":315,"images":316,"files":6,"attributes":6,"price":6,"currency":6,"isHot":6,"status":13,"sort":13,"seoTitle":317,"seoDescription":318,"seoKeywords":6,"brand":319,"category":320},"2026-05-28 19:14:18","2026-05-28 19:14:17",153521,3733,"153521","JFW Industries 75PA-103 75欧姆台式步进衰减器组件","75PA-103","JFW 75PA-103是一款75欧姆台式衰减器组件，内置一个固态步进衰减器，衰减范围0至63dB，步进1dB，工作频率5-1650 MHz，支持手动拨杆开关和以太网远程控制。","\u003Ch3>产品概述\u003C\u002Fh3>\u003Cp>JFW Industries 型号 \u003Cstrong>75PA-103\u003C\u002Fstrong> 是一款75欧姆台式衰减器组件，内置一个固态步进衰减器。该衰减器的衰减范围为0至63dB，步进1dB，工作频率覆盖5至1650 MHz。衰减器支持手动控制和远程控制两种方式。设备配备75欧姆F型母头同轴射频连接器，连接器位于后面板。由于衰减器为双向设计，端口不区分输入或输出。\u003C\u002Fp>\u003Ch3>手动衰减控制\u003C\u002Fh3>\u003Cp>前面板上配有一个手动拨杆开关，可用于调节衰减值的增大或减小。该拨杆为瞬时型开关，支持\"轻触步进\"或\"长按连续调节\"两种操作模式。当前dB设置值直接显示在前面板拨杆开关上方的显示屏上。手动更改衰减器的dB设置时，显示屏上的dB值会相应变化。同时，远程连接用户对衰减器dB设置的任何更改也会实时显示在屏幕上。\u003C\u002Fp>\u003Ch3>远程衰减控制\u003C\u002Fh3>\u003Cp>该衰减器组件可通过以太网连接或串口连接（如RS-232）进行远程控制。网络接口可设置为DHCP模式或固定地址模式。所有新测试系统出厂时默认设置为DHCP模式。通过零调制解调器型串口线缆可将RS-232连接至测试系统，支持最高155200波特率的通信速率。\u003C\u002Fp>\u003Ch3>远程命令集\u003C\u002Fh3>\u003Cp>固件手册可下载获取，其中列出了所有远程命令及其语法和示例。固件采用简单的ASCII格式远程命令。如果连接到JFW测试系统并发送HELP命令，系统将返回该特定测试系统的所有远程命令列表。\u003C\u002Fp>\u003Ch3>主要技术参数\u003C\u002Fh3>\u003Cul>\u003Cli>\u003Cstrong>阻抗：\u003C\u002Fstrong>75欧姆\u003C\u002Fli>\u003Cli>\u003Cstrong>配置：\u003C\u002Fstrong>1个衰减器\u003C\u002Fli>\u003Cli>\u003Cstrong>衰减器类型：\u003C\u002Fstrong>固态步进衰减器\u003C\u002Fli>\u003Cli>\u003Cstrong>总衰减范围：\u003C\u002Fstrong>0至63 dB\u003C\u002Fli>\u003Cli>\u003Cstrong>衰减步进：\u003C\u002Fstrong>1 dB\u003C\u002Fli>\u003Cli>\u003Cstrong>频率范围：\u003C\u002Fstrong>5 MHz 至 1650 MHz\u003C\u002Fli>\u003Cli>\u003Cstrong>手动控制：\u003C\u002Fstrong>瞬时拨杆开关\u003C\u002Fli>\u003Cli>\u003Cstrong>远程控制：\u003C\u002Fstrong>以太网 \u002F RS-232\u003C\u002Fli>\u003Cli>\u003Cstrong>连接器：\u003C\u002Fstrong>75欧姆F型母头同轴射频连接器（后面板）\u003C\u002Fli>\u003Cli>\u003Cstrong>方向性：\u003C\u002Fstrong>双向\u003C\u002Fli>\u003C\u002Ful>","[{\"name\":\"75PA-103-F-attenuator-assembly-benchtop-75-ohm-rev-a.jpg\",\"preview\":\"https:\u002F\u002Fzhht-images.oss-cn-beijing.aliyuncs.com\u002Fimage\u002F2026\u002F05\u002F28\u002F71ab9df1-015b-467f-89ea-08291f4099e9.jpg\",\"size\":194200,\"thumbnail\":\"https:\u002F\u002Fzhht-images.oss-cn-beijing.aliyuncs.com\u002Fimage\u002F2026\u002F05\u002F28\u002F71ab9df1-015b-467f-89ea-08291f4099e9.jpg\",\"url\":\"image\u002F2026\u002F05\u002F28\u002F71ab9df1-015b-467f-89ea-08291f4099e9.jpg\"}]","JFW Industries 75PA-103 75欧姆固态步进衰减器组件 5-1650MHz","JFW 75PA-103 75欧姆台式步进衰减器组件，0-63dB衰减范围，1dB步进，5-1650 MHz频率范围，支持以太网和RS-232远程控制，配备F型母头同轴射频连接器。",{"createBy":6,"createTime":6,"updateBy":6,"updateTime":6,"remark":6,"scope":6,"id":66,"siteId":6,"slug":67,"name":68,"country":6,"images":6,"files":6,"subtitle":6,"description":6,"status":6,"isHot":6,"sort":6,"seoTitle":6,"seoDescription":6,"seoKeywords":6},{"createBy":6,"createTime":6,"updateBy":6,"updateTime":6,"remark":6,"scope":6,"id":188,"siteId":6,"parentId":6,"ancestors":6,"slug":199,"name":200,"images":6,"files":6,"subtitle":6,"isHot":6,"status":6,"sort":6,"seoTitle":6,"seoDescription":6,"seoKeywords":6},{"createBy":6,"createTime":322,"updateBy":6,"updateTime":322,"remark":6,"scope":6,"id":323,"siteId":7,"sourceId":324,"categoryId":188,"brandId":66,"slug":325,"name":326,"code":6,"model":327,"subtitle":328,"description":329,"images":330,"files":6,"attributes":6,"price":6,"currency":6,"isHot":6,"status":13,"sort":13,"seoTitle":6,"seoDescription":6,"seoKeywords":6,"brand":331,"category":332},"2026-05-28 19:13:46",153520,3732,"153520","JFW 75BA-004-95 双通道可编程步进衰减器组件","75BA-004-95","JFW 75BA-004-95 是一款75欧姆台式衰减器组件，内置两个固态步进衰减器，衰减范围0-95dB，步进1dB，工作频率5MHz至2150MHz，支持手动与远程控制，配备F型母头射频连接器，可双向工作。","\u003Ch3>产品概述\u003C\u002Fh3>\u003Cp>JFW 75BA-004-95 是一款 \u003Cstrong>75 欧姆\u003C\u002Fstrong>台式衰减器组件，内置两个\u003Cstrong>固态步进衰减器\u003C\u002Fstrong>。每个衰减器的衰减范围为 \u003Cstrong>0 至 95 dB\u003C\u002Fstrong>，步进精度为 \u003Cstrong>1 dB\u003C\u002Fstrong>，工作频率覆盖 \u003Cstrong>5 MHz 至 2150 MHz\u003C\u002Fstrong>。该衰减器支持手动和远程控制，当前衰减值实时显示在前面板上。设备配备 \u003Cstrong>F 型母头 75 欧姆射频连接器\u003C\u002Fstrong>，连接器位于前面板，分别标注为输入和输出（仅为命名惯例），衰减器实际支持\u003Cstrong>双向工作\u003C\u002Fstrong>。\u003C\u002Fp>\u003Ch3>手动衰减控制\u003C\u002Fh3>\u003Cp>前面板上设有两个\u003Cstrong>手动拨杆开关\u003C\u002Fstrong>，分别位于对应衰减显示屏下方。拨杆可用于上调或下调衰减值，采用\u003Cstrong>瞬时型开关\u003C\u002Fstrong>设计，支持\u003C\u002Fp>","[{\"name\":\"75BA-004-95-F-dual-channel-benchtop-attenuator-75-ohm-rev-a.jpg\",\"preview\":\"https:\u002F\u002Fzhht-images.oss-cn-beijing.aliyuncs.com\u002Fimage\u002F2026\u002F05\u002F28\u002F5137de24-ed4a-4bed-93b1-c350afff3248.jpg\",\"size\":198234,\"thumbnail\":\"https:\u002F\u002Fzhht-images.oss-cn-beijing.aliyuncs.com\u002Fimage\u002F2026\u002F05\u002F28\u002F5137de24-ed4a-4bed-93b1-c350afff3248.jpg\",\"url\":\"image\u002F2026\u002F05\u002F28\u002F5137de24-ed4a-4bed-93b1-c350afff3248.jpg\"}]",{"createBy":6,"createTime":6,"updateBy":6,"updateTime":6,"remark":6,"scope":6,"id":66,"siteId":6,"slug":67,"name":68,"country":6,"images":6,"files":6,"subtitle":6,"description":6,"status":6,"isHot":6,"sort":6,"seoTitle":6,"seoDescription":6,"seoKeywords":6},{"createBy":6,"createTime":6,"updateBy":6,"updateTime":6,"remark":6,"scope":6,"id":188,"siteId":6,"parentId":6,"ancestors":6,"slug":199,"name":200,"images":6,"files":6,"subtitle":6,"isHot":6,"status":6,"sort":6,"seoTitle":6,"seoDescription":6,"seoKeywords":6},{"createBy":6,"createTime":334,"updateBy":6,"updateTime":335,"remark":6,"scope":6,"id":336,"siteId":7,"sourceId":337,"categoryId":188,"brandId":66,"slug":338,"name":339,"code":6,"model":340,"subtitle":341,"description":342,"images":343,"files":6,"attributes":6,"price":6,"currency":6,"isHot":6,"status":13,"sort":13,"seoTitle":6,"seoDescription":6,"seoKeywords":6,"brand":344,"category":345},"2026-05-28 19:13:22","2026-05-28 19:13:21",153519,3731,"153519","JFW 75BA-010-95 双路固态步进衰减器组件 5-3000MHz","75BA-010-95","JFW 75BA-010-95 是一款75欧姆台式双路衰减器组件，内置两个固态步进衰减器，衰减范围0-95dB，步进1dB，频率覆盖5-3000MHz，支持手动拨杆与以太网\u002FRS-232远程控制，配备F型母头连接器，支持双向工作。","\u003Ch3>产品概述\u003C\u002Fh3>\u003Cp>JFW 75BA-010-95 是一款\u003Cstrong>75欧姆\u003C\u002Fstrong>台式衰减器组件，内置两个\u003Cstrong>固态步进衰减器\u003C\u002Fstrong>。衰减范围为\u003Cstrong>0至95dB\u003C\u002Fstrong>，步进精度为\u003Cstrong>1dB\u003C\u002Fstrong>，工作频率覆盖\u003Cstrong>5至3000 MHz\u003C\u002Fstrong>。该衰减器支持手动和远程控制两种操作方式，当前衰减值通过前面板显示屏实时呈现。设备配备\u003Cstrong>F型母头75欧姆连接器\u003C\u002Fstrong>，射频连接器位于前面板，标注为输入和输出，但衰减器实际支持\u003Cstrong>双向工作\u003C\u002Fstrong>。\u003C\u002Fp>\u003Ch3>手动衰减控制\u003C\u002Fh3>\u003Cp>前面板下方配有两个手动拨杆开关，分别对应各自的衰减显示屏。拨杆采用\u003Cstrong>瞬时型开关\u003C\u002Fstrong>设计，支持\u003C\u002Fp>","[{\"name\":\"75BA-010-95-F-dual-channel-benchtop-attenuator-75-ohm.jpg\",\"preview\":\"https:\u002F\u002Fzhht-images.oss-cn-beijing.aliyuncs.com\u002Fimage\u002F2026\u002F05\u002F28\u002F5c96b3c1-27d6-47d4-bb32-b5ed3c73014b.jpg\",\"size\":37273,\"thumbnail\":\"https:\u002F\u002Fzhht-images.oss-cn-beijing.aliyuncs.com\u002Fimage\u002F2026\u002F05\u002F28\u002F5c96b3c1-27d6-47d4-bb32-b5ed3c73014b.jpg\",\"url\":\"image\u002F2026\u002F05\u002F28\u002F5c96b3c1-27d6-47d4-bb32-b5ed3c73014b.jpg\"}]",{"createBy":6,"createTime":6,"updateBy":6,"updateTime":6,"remark":6,"scope":6,"id":66,"siteId":6,"slug":67,"name":68,"country":6,"images":6,"files":6,"subtitle":6,"description":6,"status":6,"isHot":6,"sort":6,"seoTitle":6,"seoDescription":6,"seoKeywords":6},{"createBy":6,"createTime":6,"updateBy":6,"updateTime":6,"remark":6,"scope":6,"id":188,"siteId":6,"parentId":6,"ancestors":6,"slug":199,"name":200,"images":6,"files":6,"subtitle":6,"isHot":6,"status":6,"sort":6,"seoTitle":6,"seoDescription":6,"seoKeywords":6},{"createBy":6,"createTime":347,"updateBy":6,"updateTime":348,"remark":6,"scope":6,"id":349,"siteId":7,"sourceId":350,"categoryId":188,"brandId":66,"slug":351,"name":352,"code":6,"model":353,"subtitle":354,"description":355,"images":356,"files":6,"attributes":6,"price":6,"currency":6,"isHot":6,"status":13,"sort":13,"seoTitle":357,"seoDescription":358,"seoKeywords":6,"brand":359,"category":360},"2026-05-28 19:13:00","2026-05-28 19:12:59",153518,3730,"153518","JFW Industries 75PA-053 双通道固态步进衰减器组件","75PA-053","JFW Industries 75PA-053 是一款19英寸机架式双通道衰减器组件，采用75欧姆固态步进衰减器设计，衰减范围0-127 dB，步进1 dB，工作频率450-2150 MHz，支持手动及以太网\u002FRS-232远程控制。","\u003Ch3>产品概述\u003C\u002Fh3>\u003Cp>JFW Industries 75PA-053 是一款19英寸机架式衰减器组件，内置\u003Cstrong>2个固态步进衰减器\u003C\u002Fstrong>，阻抗为\u003Cstrong>75欧姆\u003C\u002Fstrong>。衰减范围为\u003Cstrong>0至127 dB\u003C\u002Fstrong>，步进精度为\u003Cstrong>1 dB\u003C\u002Fstrong>，工作频率覆盖\u003Cstrong>450-2150 MHz\u003C\u002Fstrong>。衰减器支持双向操作，配备F型母头75欧姆同轴射频连接器，连接器位于后面板。\u003C\u002Fp>\u003Ch3>默认设置\u003C\u002Fh3>\u003Cp>配备以太网\u002FRS-232远程控制的衰减器组件出厂时，网络接口默认设置为DHCP模式，串口波特率默认设置为57600。这些设置可通过前面板按键手动更改，也可通过NET或SERIAL远程命令进行修改。前面板显示屏可实时显示当前的网络模式、IP地址和波特率设置。\u003C\u002Fp>\u003Ch3>手动控制\u003C\u002Fh3>\u003Cp>手动控制菜单支持以下操作：\u003C\u002Fp>\u003Cul>\u003Cli>设置或读取单个衰减器的衰减值\u003C\u002Fli>\u003Cli>对衰减器进行渐变调节\u003C\u002Fli>\u003Cli>使用两个衰减器**切换操作\u003C\u002Fli>\u003C\u002Ful>\u003Ch3>远程控制\u003C\u002Fh3>\u003Cp>该衰减器组件支持通过\u003Cstrong>以太网\u003C\u002Fstrong>或\u003Cstrong>RS-232串口\u003C\u002Fstrong>进行远程控制。网络接口可设置为DHCP模式或固定地址模式。通过零调制解调器型串口电缆实现与测试系统的RS-232连接，支持**高\u003Cstrong>155200波特\u003C\u002Fstrong>的波特率。波特率可通过按键手动更改，也可通过SERIAL远程命令修改。\u003C\u002Fp>\u003Ch3>远程命令集\u003C\u002Fh3>\u003Cp>JFW提供**一代固件手册供下载，其中列出了所有远程命令的语法和示例。固件采用简单的ASCII格式远程命令。连接到JFW测试系统后，发送HELP命令即可获取该特定测试系统的所有远程命令列表。\u003C\u002Fp>","[{\"name\":\"75PA-053-F-programmable-attenuator-assembly-19-inch-rack-75-Ohm-Rev-A.jpg\",\"preview\":\"https:\u002F\u002Fzhht-images.oss-cn-beijing.aliyuncs.com\u002Fimage\u002F2026\u002F05\u002F28\u002Ffdebda45-23bc-4b24-af53-de1cf2822fe0.jpg\",\"size\":50169,\"thumbnail\":\"https:\u002F\u002Fzhht-images.oss-cn-beijing.aliyuncs.com\u002Fimage\u002F2026\u002F05\u002F28\u002Ffdebda45-23bc-4b24-af53-de1cf2822fe0.jpg\",\"url\":\"image\u002F2026\u002F05\u002F28\u002Ffdebda45-23bc-4b24-af53-de1cf2822fe0.jpg\"}]","JFW Industries 75PA-053 双通道固态步进衰减器组件 450-2150MHz 75欧姆","JFW Industries 75PA-053 双通道固态步进衰减器组件，19英寸机架式设计，75欧姆阻抗，衰减范围0-127 dB，步进1 dB，频率450-2150 MHz，支持手动按键及以太网\u002FRS-232远程控制，双向操作。",{"createBy":6,"createTime":6,"updateBy":6,"updateTime":6,"remark":6,"scope":6,"id":66,"siteId":6,"slug":67,"name":68,"country":6,"images":6,"files":6,"subtitle":6,"description":6,"status":6,"isHot":6,"sort":6,"seoTitle":6,"seoDescription":6,"seoKeywords":6},{"createBy":6,"createTime":6,"updateBy":6,"updateTime":6,"remark":6,"scope":6,"id":188,"siteId":6,"parentId":6,"ancestors":6,"slug":199,"name":200,"images":6,"files":6,"subtitle":6,"isHot":6,"status":6,"sort":6,"seoTitle":6,"seoDescription":6,"seoKeywords":6},200,"查询成功"]