Cellular Module BG77LA
BG77LA-64-SGNS
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Product Description
BG77 is an embedded IoT (LTE Cat M1, LTE Cat NB2) wireless communication module. It provides data connectivity on LTE-FDD network, and supports half-duplex operation in LTE network. It also provides optional GNSS and voice* 1) functionality to meet customers’ specific application demands.
With a compact profile of 14.9 mm ×12.9 mm ×1.7 mm, BG77 can meet almost all requirements for M2M applications such as smart metering, tracking system, security, wireless POS, etc. It is especially suitable for size and weight sensitive applications such as smart watch and other wearable devices.
BG77 is an SMD type module which can be embedded into applications through its 94 LGA pads. It supports internet service protocols like TCP, UDP and PPP. Extended AT commands have been developed for customers to use these internet service protocols easily.
Features
| Features | Details |
|---|---|
| Power Supply | 1) Supply voltage: 2.6–4.8 V |
| 2) Typical supply voltage: 3.3 V | |
| Transmitting Power | Class 5 (21 dBm +1.7/-3 dB) for LTE-FDD bands |
| LTE Features | 1) Support 3GPP Rel. 14 |
| 2) Support LTE Cat M1 and LTE Cat NB2 | |
| 3) Support 1.4 MHz RF bandwidth for LTE Cat M1 | |
| 4) Support 200 KHz RF bandwidth for LTE Cat NB2 | |
| 5) Cat M1: Max. 588 kbps (DL)/1119 kbps (UL) | |
| 6) Cat NB2: Max. 127 kbps (DL)/158.5 kbps (UL) | |
| Internet Protocol Features | 1) Support PPP/TCP/UDP/SSL/TLS/FTP(S)/HTTP(S)/NITZ/PING/MQTT/ LwM2M/CoAP* protocols |
| 2) Support PAP (Password Authentication Protocol) and CHAP (Challenge Handshake Authentication Protocol) protocols which are usually used for PPP connections | |
| SMS | 1) Text and PDU mode |
| 2) Point to point MO and MT | |
| 3) SMS cell broadcast | |
| 4) SMS storage: ME by default | |
| SIM Interface | Support 1.8 V USIM/SIM card only |
| PCM Interface* | Support one digital audio interface: PCM interface |
| USB Interface | 1) Compliant with USB 2.0 specification (slave only) |
| 2) Support operations at low-speed and full-speed | |
| 3) Used for AT command communication, data transmission, GNSS NMEA output, software debugging and firmware upgrade | |
| 4) Support USB serial drivers for Windows 7/8/8.1/10, Linux 2.6–5.4, Android 4.x/5.x/6.x/7.x/8.x/9.x | |
| UART Interfaces | Main UART: |
| 1) Used for data transmission and AT command communication | |
| 2) 115200 bps baud rate by default | |
| 3) The default frame format is 8N1 (8 data bits, no parity, 1 stop bit) | |
| 4) Support RTS and CTS hardware flow control | |
| Debug UART: | |
| 1) Used for software debugging and log output | |
| 2) Support 115200 bps baud rate | |
| GNSS UART: | |
| 1) Used for GNSS data and NMEA sentences output | |
| 2) 115200 bps baud rate by default | |
| GNSS (Optional) | 1) Gen9 VT of Qualcomm (GPS, GLONASS, BeiDou, Galileo and QZSS) |
| 2) 1 Hz data update rate by default | |
| AT Commands | 1) 3GPP TS 27.007 and 3GPP TS 27.005 AT commands |
| 2) Quectel enhanced AT commands | |
| Network Indication | One NET_STATUS pin for network connectivity status indication |
| Antenna Interfaces | Main antenna (ANT_MAIN) and GNSS antenna (ANT_GNSS) interfaces |
| Physical Characteristics | 1) Dimensions: (14.9 ±0.15) mm × (12.9 ±0.15) mm × (1.7 ±0.2) mm |
| 2) Weight: approx. 0.73 g | |
| Temperature Range | 1) Operation temperature range: -35 °C to +75 °C 2) |
| 2) Extended temperature range: -40 °C to +85 °C 3) | |
| 3) Storage temperature range: -40 °C to +90 °C | |
| Firmware Upgrade | 1) USB interface |
| 2) DFOTA* | |
| RoHS | All hardware components are fully compliant with EU RoHS directive |
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