This manual introduces the functional characteristics, interface descriptions, AT command sets and development examples of PIML-900/1800 modules, which can help users develop PIML-900/1800 module products.
The PIML-900/1800 is a dual‑band GSM/ DCS1800 module with GPRS Class 10 support, intended for voice, SMS and data applications such as mobile phones, PDAs, wireless modems and POS devices. It integrates the RF front‑end, baseband processor and charging circuit in a compact 58 mm × 32 mm × 3.9 mm package.
The manual describes the module’s hardware interfaces (system connector, power, SIM, audio, serial ports), the full AT command set, GPRS commands, TCP/IP usage, development examples, environmental and RF specifications, and provides connector pin‑out diagrams and ordering information for the AVX 60‑pin connectors. This manual is written in Chinese.
| Operating voltage range | 3.4 V – 4.2 V DC |
|---|---|
| Peak current requirement | ≥ 2 A |
| Dimensions | 58 mm × 32 mm × 3.9 mm |
| Supported frequency bands | GSM 900 / DCS 1800 |
| GPRS class | Class 10 multi‑slot |
| SIM card voltage | 3 V |
| System connector | 60‑pin AVX connector |
The module operates from 3.4 V to 4.2 V DC.
It supports both GSM 900 and DCS 1800 bands.
The power source must be able to deliver at least 2 A peak current.
A 60‑pin AVX connector is used for the system interface.