This document is the product manual for LZ510B GSM Modem by Xiamen Lenz Communication Co., Ltd. It provides detailed information about the features and characteristics of the modem.
The Lenz LZ510B GSM Modem is an industrial‑grade modem with a standard RS‑232 interface and optional audio port, designed for wireless data transmission in monitoring systems. The manual provides a complete description of the hardware, external connectors, and functional features.
It includes detailed installation steps, cable and antenna connections, power requirements, and instructions for using the provided SMS test tool. The later sections list AT command syntax for data, voice, and fax operations, enabling configuration and troubleshooting of the modem. This manual is written in Chinese.
| Supply voltage (standard) | +9VDC/500mA |
|---|---|
| Maximum current | 70mA |
| Operating voltage range | DC5V～DC35V |
| Antenna connector | 50Ω SMA (female) |
| SIM card voltage detection | 3V/5V auto‑detect |
| Data interface | DB9 RS‑232 |
| Audio interface | DB9 |
| Serial data rate | 9600–115200 bits/s |
| Physical dimensions | 92.7 × 61.3 × 26 mm |
| Operating temperature | -25 °C ~ +65 °C |
It accepts a supply of +5 V to +35 V DC, with a recommended standard 9 VDC/500 mA source.
Use the PDU mode in the SMS test tool; Text mode only supports half‑width characters.
The modem uses a 50 Ω SMA (female) connector for the antenna.
The PC’s COM port baud rate must be set to the same value as the modem’s serial data rate (e.g., 9600 bps).