The CH-M2G5H4 HSUPA Modem from Chonghan Technology is a dual-band wireless modem designed for low-data-rate communication such as SMS, CSD, and dial-up internet access. It features a robust metal casing, standard USB interface, and SIM card slot. The modem is ideal for high-volume data transmission in M2M applications and can be widely used in various commercial fields including meter reading, remote device maintenance, transportation logistics, traffic systems, vending machines, security, and property management.
The CH-M2G5H4 HSUPA Modem is an industrial‑grade, dual‑band wireless modem designed for low‑data‑rate communications such as SMS, CSD and dial‑up internet. It features a rugged metal enclosure, standard USB Type‑B connector, SIM card slot and a wide input voltage range.
The modem supports multiple frequency bands (850 MHz, 1900 MHz, 2100 MHz), offers HSUPA data rates up to 2 Mbps uplink and 7.2 Mbps downlink, and includes hardware watchdog, LED indicators and a compact form factor (75 × 50 × 16 mm, 200 g). It is suited for applications like remote meter reading, logistics, security, and industrial monitoring. This manual is written in Chinese.
| Frequency Bands | WCDMA/VHSDPA 2100 MHz (1920‑1980 MHz uplink / 2110‑2170 MHz downlink), 1900 MHz (1850‑1910 MHz uplink / 1930‑1990 MHz downlink), 850 MHz (824‑849 MHz uplink / 869‑894 MHz downlink) |
|---|---|
| Output Power | 2.5 W |
| Input Voltage | DC 5 V ~ 25 V |
| Operating Temperature | -10 °C to +65 °C |
| Storage Temperature | -20 °C to +70 °C |
| Humidity Range | 59 % ~ 90 % RH |
| Dimensions | 75 mm × 50 mm × 16 mm |
| Weight | 200 g |
| HSUPA Data Rate | Uplink 2.0 Mbps (up to 5.76 Mbps), Downlink 7.2 Mbps |
| USB Interface | USB Type‑B Female, USB 2.0 |
| Antenna Connector | 500 Ω SMA Female |
| SIM Card Slot | Mini‑SIM, 1.8 V / 3.3 V |
| Power Supply Connector | 5.5 mm × 2.5 mm |
| Warranty | 1 Year |
The modem operates from –10 °C up to +65 °C.
It supports WCDMA/VHSDPA bands at 850 MHz, 1900 MHz and 2100 MHz with the respective uplink and downlink ranges listed in the datasheet.
The device includes a USB Type‑B (USB 2.0) port, a 500 Ω SMA antenna connector, a Mini‑SIM slot, and a 5.5 mm × 2.5 mm power input.
The modem comes with a one‑year warranty.