YD-1003 Telemetry Terminal Unit (MINI Version)

I. Product Features

Ø Power consumption design, whole machine current < 10mA in sleep mode.

Ø Dual watchdog technology for both inside and outside, ensuring system stability and preventing crashes.

Ø Supports Modbus protocol, capable of reading smart water meters, level gauges, and various other instruments.

Ø Supports over-limit data reporting mechanism, additional reports can be made via SMS, GPRS, or satellite when data exceeds the threshold.

Ø Features a real-time clock with built-in backup battery, and supports remote time synchronization.

Ø Supports bilingual (Chinese and English) SMS functionality.

ØSupports dual-band GSM/GPRS/CDMA, supports SMS messaging.GPRS/CDMACommunication, satellite communication.

ØSupport Static MountIP，Any device with a static IP address connected to the public internet from any location.DynamicComputers authorized to the domain can all receive data sent from this device.

ØSupports primary and backup data transmission channels.GPRSThe primary data channel is for communication, with short messages and satellite communication serving as auxiliary backup data channels.

ØRTUs, paired with rain gauges, water level sensors, and other measurement sensors, form a hydrological information observation station. The collected hydrological data is transmitted through the GPRS communication network. Its performance complies with radio management regulations, technical standards, and related requirements of hydrological measurement and reporting remote sensing devices.

ØThe RTU features built-in data recording capabilities, which can be set or programmed for timed and quantitative data storage. Data is not lost during power outages. Recordings can be accessed on-site or remotely.

ØRTUs use a scheduled connection to send data, don't require real-time online status, have low monthly traffic, and low costs.

ØUtilizing power technology, the power supply has a wide range of adaptability, suitable for installation in both indoor and outdoor environments.

ØOptimize electromagnetic compatibility design, suitable for harsh electromagnetic environments and high-demand applications.

II. Main Technical Parameters

Bandwidth Usage: <200KHz3. Emission Power: 33/30 dBm ±2 dB4. Modulation Method: GMSK5. Communication Method: Scheduled/Quantitative, Wake-up and Polling6. Communication Interface:3Road 485 interface1Road 232 interface3Road DI interface1Road AI interface.1Road power output。

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9.Power Output: Output voltage equals supply voltage-0.3VOutput Current＜1A。

（1）Surge Protection:1.2/50usDifference Mode ±2KV,Common-mode differential ±4KV；

（3）Anti-pulse group interference: 5/50ns±4KV。

12. Dimensions and Weight: External Dimensions (Length x Width x Height):123×90×30(mm), Weight: <150g (excluding antenna).