Qingdao Qingbiao single-phase remote prepaid electricity meter adopts the State Grid protocol, which can realize card insertion electricity sales (subdivision model DDSY2026-RS485), RS485 network wiring remote electricity sales (subdivision model DDSY2026-RS485, suitable for centralized installation, requiring wiring), or 4G wireless remote prepaid electricity sales (subdivision model DDSY2026-4G, suitable for decentralized installation, no wiring required). Its main functions are as follows:

1: According to the State Grid standard, IC card sales of electricity require payment before use;

2: (Internal load cut-off) Direct voltage 220V, current 5 (20) A;

Direct voltage 220V, current 10 (40) A;

Direct voltage 220V, current 15 (60) A;

Direct voltage 220V, current 20 (80) A;

Direct voltage 220V, current 30 (100) A;

3: DDSY2026-RS485: RS485 remote prepaid (low-voltage wiring after centralized installation), IC card used as power transmission management card to overdraw power in emergency situations;

4: DDSY2026-4G: 4G remote prepaid (can be used for communication after installation), IC card can be used as a power management card to overdraw power in emergency situations;

5:Recharge amountConvert to electricityWrite into the energy meter and enable data exchange with the backend of the electricity sales systemcomparison.

6: Data blockreadPrepaid information, including the following:Total electricity consumption, cumulative purchased electricityquantity of electricityThis purchase of electricityquantity of electricity, remainingElectricity level.Instantaneous data: Aeach otherVoltage, Aeach otherelectric current,Aeach otherActive power,Total active power, etc;

7: When recharging remotely via RS485 or 4GhaveElectricity purchaseRevocation function: By giving instructionsRemote rechargeThe sale of electricityquantity of electricityThe function of recalling from the electricity meter;

8: Can achieve postpaid remote closing and opening function;

9: The communication protocol adopts DLT645-2007, remoteDuring the electricity sales process, State Grid DES encryption technology is used,Accepting third-party programming applications, the manufacturer provides open-source communication protocols.

10: Can be matched with Qingdao Qingbiao Energy Management System software to achieve

10.1 Computer card free remote recharge (the computer does not require internet access and is equipped with 4G devices to connect to the computer), without the need for a fixed IP or cloud server;

10.2 Computer remote recharge without card,And mobile phone WeChat official account recharge, cloud servers need to be configured.

All software is independently developed, without third-party control, and can run for a long time without any malfunctions.

Appendix 1: DDSY2026-RS485, DDSY2026C-4G Product Images

Appendix 2: Standard Dimensional Drawings for DDSY2026-RS485, DDSY2026C-4G (External Antenna 1.5m)

Appendix 3 DDSY2026 Product Electronic Page