Willfar Information Technology Co. Ltd.
| Payment Terms | T/T |
| Supply Ability | 2000 per day (based on the number of the order) |
| Delivery Time | 30 days |
| Packaging Details | Carton Packaging |
| Color | Grey |
| Material | PVC |
| Nominal Voltage | 5V DC |
| Brand | Willfar Information |
| Maximum Current | 800mA |
| Voltage Range | 5V DC~12V DC |
| Operating Temperature | -25 °C ~ + 75 °C |
| Relative Humidity | ≤95%, non-condensing |
| Brand Name | Willfar Information Techonology Co., Ltd. |
| Model Number | WS-18i |
| Certification | CE |
| Place of Origin | Changsha, Hunan |
View Detail Information
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Product Specification
| Payment Terms | T/T | Supply Ability | 2000 per day (based on the number of the order) |
| Delivery Time | 30 days | Packaging Details | Carton Packaging |
| Color | Grey | Material | PVC |
| Nominal Voltage | 5V DC | Brand | Willfar Information |
| Maximum Current | 800mA | Voltage Range | 5V DC~12V DC |
| Operating Temperature | -25 °C ~ + 75 °C | Relative Humidity | ≤95%, non-condensing |
| Brand Name | Willfar Information Techonology Co., Ltd. | Model Number | WS-18i |
| Certification | CE | Place of Origin | Changsha, Hunan |
| High Light | 4g module ，wireless networking module | ||
Internal 3G Communication Module for Smart Meter Celluar Data Collection System WS-18i
Company Profile
Willfar Information Technology Co., Ltd.
- Established in 2004;
- Listed on the STAR Market of the Shanghai Stock Exchange in December 2019;
- Leading supplier of meter reading (AMI) equipment and operation service;
- The first company to develop "One DCU Reading Multi-meter" solution in China;
- The first company to have large-scale application of technologies and systems like "CPU smart-card Charge and Control", "One DCU Reading Multi-meter", LoRa-based RF Communication and "District Metering Area (DMA)”
Introduction
- The Internal 3rd Generation module is GSM-based wireless packet switched technology used to provide end-to-end wide area wireless IP connections, which can transfer data to users in “Packet” mode at a high speed.
- The Internal 3G module has prominent advantages in many aspects such as the transfer rate, wireless resource management and billing.
- More than 1000,000 3G Data Collector had been installed on the field all over the world. The stability of this product had been fully verified.
Technical Parameters
Internal 3G Module
| Item | Parameter |
| Nominal Voltage | 5V DC |
| Voltage Range | 5V DC~12V DC |
| Idle Current | 13mA@5V |
| Communication Current | 210mA@5V |
| Maximum Current | 800mA |
| Sensitivity | <-108.5dBm |
| SIM Interface | 1.8V/3V |
| Electrostatic Discharge IEC61000-4-2 | Air discharge, 15kV, 10 cycles |
| Operating Temperature | -25 °C ~ + 75 °C |
| Relative Humidity | ≤95%, non-condensing |
UART Interface
Various interfaces in Internal 3G Module to connect Meter and Antenna.
| Pin No. | Signal Name | Pin Type | Description |
| 1 | DC 5V | Power Supply | These 3 PINs are parallel connections that are capable to supply 5V±0.2V, Regulated (1) @1200mA output for long term; (2) @2A output for peak value. |
| 2 | DC 5V | ||
| 3 | DC 5V | ||
| 4 | METER RXD | Signal (meter input) 3.3V TTL/CMOS | Serial Data from MCU to Meter |
| 5 | DC 16V | Power Supply | Capable to supply 16V±1V, Regulated (1) @500mA output for long term; (2) @800mA output for peak value. |
| 6 | METER RXD | Signal (meter input) 3.3V TTL/CMOS | Serial Data from Meter to MCU |
| 7 | GND | GND Power | DC Ground |
| 8 | Reset module/Last gasp signal | Signal (meter input) 3.3V TTL/CMOS | Reset the communication module Or Last gasp notification to module |
| 9 | GND | GND Power | DC Ground |
| 10 | GND | GND Power | DC Ground |
Certificate
CE
Features
1. GSM/GPRS (850/900/1800/1900 MHz)/WCDMA (2100MHz)
2. Over the Air Update
3. Supports TCP/UDP/FTP/DNS protocol
4. Remote SMS configuration
5. Control Via AT Commands
6. Supports USB2.0 slave mode
7. Update via USB Port
8. Data transfer
• HSPA+
- Max. 14.4Mbps(DL), Max.5.76Mbps(UL)
• WCDMA
- Max.384Kbps(DL), Max.384Kbps(UL)
• EDGE Class:
- Max. 236.8Kbps(DL),Max. 236.8Kbps(UL)
• GPRS
- Max. 85.6Kbps(DL), Max. 85.6Kbps(UL)
Reading Instruction
1. Date cable socket to connect meter
2. SIM card pedestal for installing SIM card
3. USB interface for debug and update firmware
4. Antenna pedestal with SMA type
5. Main chip is a dual frequency for GSM/GPRS and UMTS chip
Function
An Internal 3G Module is composed of several elements, including:
1. CPU is a dual frequency for GSM/GPRS and UMTS chip
2. Watch Dog chip to control power supply
3. Antenna pedestal with SMA type
4. SIM card pedestal for installing SIM card
5. LED display to indicate network status
6. LDO power supply to adjust voltage for GPRS CPU
Situation
For smart meter required communication function. Pluggable.
Dimension
Company Details
Business Type:
Manufacturer,Exporter,Seller,Other
Year Established:
2004
Total Annual:
170-180 million
Employee Number:
700~705
Ecer Certification：
Active Member
Introduction As the first company in Hunan Province to be listed on SSE STAR Market, Willfar is the pioneer manufacturer in China that can simultaneously provide related industries with all kinds of advanced electricity, water, gas and heat metering products and meters for power distribution... Introduction As the first company in Hunan Province to be listed on SSE STAR Market, Willfar is the pioneer manufacturer in China that can simultaneously provide related industries with all kinds of advanced electricity, water, gas and heat metering products and meters for power distribution...
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