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主机与从机, 从机与从机相连⽅式: R S - 4 8 5 R S - 4 8 5 R S - 4 8 5 A B AB AB AB AB SPM-Main SPM-4Relay SPM-4Relay 每1台主机最多⽀持接⼊32台从机 (总接线⻓度不超过100⽶) 。 主机与从机相连的线材必须为:2芯屏蔽双绞线(RVVSP), 单根线径最⼩0.2mm²。 在⼲扰较为严重的应⽤场合, 为保证485总线通讯可靠性, 请将通讯总线屏蔽层单端接地(⼀端接地, 另⼀端悬空) 控制灯具接线示意: LIn...
Shenzhen Sonoff Technologies Co., Ltd. English Product Introduction Micro SD Card Slot RS-485 Wire Terminal Pairing Button SD Card Indicator Signal Indicator Error Indicator Ethernet Port Signal Indicator Error Indicator RS-485 Wire Terminal L1/L2/L3/L4 On/Off LED Indicator L1/L2/L3/L4 Physical Switch RS-485 Termination Resistor Switch Off...
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English Features SPM-Main and SPM-4Relay are the main unit and slave unit of SONOFF Smart Stackable Power Meter, and both are designed to work together. You can control the added slave unit in the App through pairing the main unit with the eWeLink App.
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Shenzhen Sonoff Technologies Co., Ltd. English 2.Wiring Instruction Wiring Instruction of SPM-Main & SPM-4Relay and SPM-4Relay & the Slave Unit: R S - 4 8 5 R S - 4 8 5 R S - 4 8 5 A B...
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Shenzhen Sonoff Technologies Co., Ltd. English Off Off The "RS-485 Termination Resistor Switch" of the slave unit is off by default. To make sure stable communication, the "RS-485 Termination Resistor Switch" of the terminal slave unit shall be turned on. 3.
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Shenzhen Sonoff Technologies Co., Ltd. English 5.Add Device Add Device All devices Quick Pairing Available for eWeLink support devices Scan QR code Sound Pairing Available for camera Available for GSM and other devices that and other devices support this pairing with QRcode.
Shenzhen Sonoff Technologies Co., Ltd. English Insert Micro SD Card (SPM-Main) Make sure Micro SD Card is inserted correctly (Micro SD Card is sold separately). Specifications SPM-Main SPM-Main Model Input 100-240V~50/60Hz50mAMax IEEE802.11b/g/n2.4GHz Wi-Fi -10℃~+40℃ Working Temperature Android&iOS App Operating Systems...
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Shenzhen Sonoff Technologies Co., Ltd. English Instruction of the SPM-Main Indicator Status SD Card Indicator (Green) Indicator Status Status Instruction Reading SD Card or Flashing Flashes Once Signal Indicator (Blue) Indicator Status Status Instruction Flashes Quickly Bluetooth Pairing Mode Keep On...
Shenzhen Sonoff Technologies Co., Ltd. English SPM-Main Ethernet Usage Only the main unit was paired successfully in the eWeLink App can it be connected to Ethernet to work. After connecting to Ethernet, the main unit will use Ethernet in preference (Wi-Fi and Ethernet can be the different network).
Shenzhen Sonoff Technologies Co., Ltd. English Common Problems Fail to pair Wi-Fi devices with eWeLink APP 1. Make sure the device is in pairing mode. The device will automatically exit the pairing mode if not paired within 3mins. 2. Please turn on the location service on your mobile phone and give the permission. Before choosing the Wi-Fi network, the location service should be turned on and the permission is given.
Shenzhen Sonoff Technologies Co., Ltd. FCC Warning FCC Warning Changes or modifications not expressly approved by the party responsible for compliance could avoid the user ’s authority to operate the equipment. This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
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Hereby, Shenzhen Sonoff Technologies Co., Ltd. declares that the radio equipment type SPM-Main, SPM-4Relay is in compliance with Directive 2014/53/EU.The full text of the EU declaration of conformity is available at the following internet address: https://sonoff.tech/usermanuals Shenzhen Sonoff Technologies Co., Ltd.
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