The Raspberry Pi 4 Model B is one of the popular Raspberry Pi range of single board computers. It offers ground-breaking increases in processor speed, multimedia performance, memory, and connectivity compared to the prior generation Raspberry Pi 3 Model B+ while retaining backward compatibility and similar power consumption. For the end user, Raspberry Pi 4 Model B provides desktop performance comparable to entry-level x86 PC systems.
Key features include a high-performance 64-bit quad-core processor, dual-display support at resolutions up to 4K via a pair of micro-HDMI ports, hardware video decode at up to 4Kp60, up to 8 GB of RAM, dual-band 2.4 / 5.0 GHz wireless LAN, Bluetooth 5.0, Gigabit Ethernet, USB 3.0, and PoE capability (via a separate PoE HAT add-on). The dual-band wireless LAN and Bluetooth have modular compliance certification, allowing the board to be designed into end products with significantly reduced compliance testing, improving both cost and time to market.
Features
1.5 GHz quad-core ArmCortex-A72 CPU
VideoCore VI graphics
4kp60 HEVC decode
True Gigabit Ethernet
2 USB 3.0 and 2 USB 2.0 ports
2 micro-HDMI ports (1 4kp60 or 2 4kp30)
USB-C for input power, supporting 5 V / 3 A operation
2 GB, 4 GB, and 8 GB LPDDR4 memory SKUs
The SIM7000C is Multi-Band LTE-TDD/LTE-FDD and Dual-Band GSM/GPRS/EDGE module solution in a SMT type which supports LTE CAT M1(eMTC) and NB-IoT up to 375kbps for downlink data transfer.
It has strong extension capability with rich interfaces including UART, USB2.0, GPIO etc. the module provides much flexibility and ease of integration for customer's application.
The biggest advantage of the product is low power consumption.
General features
* Single-Band TDD-LTE B39
* Three-Band FDD-LTE B3/B5/B8
* GSM/GPRS/EDGE 900/1800 MHz
* Control Via AT Commands
* Supply voltage range: 3.4V~ 4.2V, Typ:3.8V
* Operation temperature: -40â?? to +85â??
* Dimension: 24*24*2.6 mm
* Weight: 3.0g
* GNSS
Specifications for Data transfer
* LTE CAT M1
- Uplink up to 375kbps,
- Downlink up to 375kbps
* NB-IoT
- Uplink up to 72kbps,
- Downlink up to 32kbps
* EDGE Class
- Max. 236.8Kbps(DL/UL)
* GPRS
- Max. 85.6Kbps(DL/UL)
Other features
* USB Driver for Microsoft Windows2000/XP/Vista/Win7/Win8/Win10
* USB Driver for Windows CE/Mobile
* USB Driver for Linux /Android
* RIL supporting for Android/WindowsCE/Mobile
* Firmware update via USB
* TCP/IP/IPV4/V6 Multi-PDP,MT PDP
* DTMF*
* Gobi SDK to the Win7/Win8/Linux
* MBIM to Win8
* Source code of the PC manager of the device for reference
GLsun SFP28-25G-LR single-mode transceiver is SFP28 transceiver module duplex optical data communications support up to 25.78Gb/s. It is with the SFP+ 20 pins connector to allow hot plug capability. Digital diagnostic functions are available via an I2C. It has built-in clock data recovery (CDR). This module is designed for single-mode fiber and operates at a nominal wavelength of 1310nm.
Compatible Cisco Form Factor SFP28
Max Data Rate 25.78Gbps Wavelength 1310nm
Max Cable Distance 10km on 9/125um SMF Connector Duplex LC
Transmitter Type DFB 1310nm Extinction Ratio 3.5dB
Media SMF Power Consumption
GLsun 40Gb/s QSFP+ PSM 10km Optical Transceiver is a four-channel, pluggable, parallel, fiber-optic QSFP+ transceiver for InfiniBand QDR/DDR/SDR, 10G/8G/4G/2G fiber channel. and SAS Applications. The QSFP full-duplex optical module offers 4 independent transmit and receive channels, each capable of 10.3Gbps operation for an aggregate data rate of 40Gbps 10km using single-mode fiber. These modules are designed to operate over single-mode fiber systems using 1310 nm DFB laser array. An optical fiber ribbon cable with an MPO/MTPTM connector can be plugged into the QSFP module receptacle. QSFP+ PSM LR4 is one kind of parallel transceiver that provides increased port density and total system cost savings.
Compatible Cisco Form Factor QSFP+
Max Data Rate 11.2Gbps Wavelength 1310nm
Max Cable Distance 10km at Single Mode Fiber Connector Single MPO
Transmitter Type DFB Laser Array Extinction Ratio 3.5dB
Media SMF Power Consumption
25G SR,LR SFP28 optical transceiver with the features of IEEE802.3by, SFF-8472 low consumption and high reliability,suitable for data center,25G Ethernet and fiber channel.
This tag is uhf frequency(include 860~868mhz and 902~928mhz), it can support iso18000-6c(epc gen2) protocol to read and write, the read range depends on the reader.It made by pu material, the size is 68*80*2mm.
We also can provide oem service, such as print on the tags according customer's specific requirement.
This tag is uhf frequency(include 860~868mhz and 902~928mhz), it can support iso18000-6c(epc gen2) protcol to read and write, the read range can up to 10~12m if use our uhf long range reader at the normal environment.
The size is 110mm*45mm*0.3mm, we also can help customer customize different size according customer's specific requirement.
It made by self-adhesive paper, can be fixed on the car windshield directly, mainly used for vehicle management in parking application.
