The SIMCom SIM548C is a compact and versatile wireless module that offers reliable connectivity for various IoT applications. It supports a wide range of wireless bands and network standards, ensuring compatibility with networks worldwide.
Supported wireless bands include GSM/GPRS/EDGE (850/900/1800/1900MHz) and WCDMA/HSPA (850/1900/2100MHz), enabling seamless communication across different regions. The module also supports network standards such as TCP/IP, HTTP, FTP, and SSL, ensuring secure and efficient data transmission.
Key features of the SIMCom SIM548C include:
1. Quad-Band Connectivity: With support for four GSM bands, the module ensures global coverage and reliable connectivity.
2. High-Speed Data Transmission: The SIM548C supports EDGE and HSPA, offering fast and efficient data transfer for demanding IoT applications.
3. Embedded TCP/IP Stack: The module features an embedded TCP/IP stack, allowing seamless integration with IoT platforms and cloud services.
4. Compact Design: The SIM548C's compact form factor makes it ideal for space-constrained applications, enabling easy integration into a wide range of devices.
5. Extended Temperature Range: Designed to withstand harsh operating conditions, the module operates reliably within a wide temperature range, ensuring performance in demanding environments.
Overall, the SIMCom SIM548C is a robust and feature-rich wireless module that provides reliable connectivity, high-speed data transmission, and seamless integration for IoT applications.
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Physical interfaces
- Overall dimensions: 55*33*8.2mm
- Weight: approx.16.5g
- Normal operation temperature:
-30 °C to +80°C
GSM / GPRS specification
- Quad-Band 850/900/18001900MHz
- GPRS multi-slot class 10
- GPRS mobile station class B
- Compliant to GSM phase 2/2+
– Class 4 (2 W @ 850/900 MHz)
– Class 1 (1 W @ 1800/1900MHz)
- Control via AT commands (GSM
07.07 ,07.05 and SIMCOM enhanced AT
Commands)
- SIM application toolkit
- Supply voltage range 3.4 ... 4.5 V
- Low power consumption
Specification for SMS
- Point-to-point MO and MT
- SMS cell broadcast
- Text and PDU mode
Specification for Audio
- Tricodec
– Half rate (HR)
– Full rate (FR)
– Enhanced Full rate (EFR)
- Hands-free operation
- Echo cancellation
Specification for Data transfer
- GPRS class 8/10: max. 85.6 kbps (downlink)
- PBCCH support
- Coding schemes CS 1, 2, 3, 4
- CSD up to 14.4 kbps
- USSD
- Non transparent mode
- PPP-stack
- Integrated TCP/IP stack
Specification for Fax
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Interfaces
- 60-pin DIP connector
- Multiplexer
- Interface to external SIM 3V/ 1.8V
- Dual analog audio interfaces
- AT commands via GSM/GPRS serial interface
- Embedded SIM card holder
- LCD interface
- RTC backup
- Charge interface
- A serial interface and a debug interface for GSM/GPRS
- Dual serial interface for GPS
- Two separate antenna connectors for GSM/GPRS&GPS, and two antenna pads for GSM/GPRS&GPS
Compatibility
- AT cellular command interface
Specification for GPS
- Receiver 20 channels, L1 1575.42 MHz, C/A code 1,023 MHz chip rate
- Accuracy Position 10m CEP
without SA/Velocity 0.1m/s,
without SA/Time 1μs synchronized to GPS time
- Date WGS-84
- Acquisition rate (TTFF defined at 95% of first position local station)
Hot start<1s, average, open sky
Warm start<38s, average, open sky
Cold start<42s, average, open sky
- Support AGPS
- Operating voltage 3.3V DC ±5%
- Low power consumption about 200mW at 3.3V
- Protocols
NMEA-0183
SiRF binary
RTCM SC-104
- Crystal oscillator (TCXO), temperature compensated with frequency stability of ±0.5ppm
- Memory: 4 Mb flash and 1Mb SRAM
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