The OpenVox G400P GSM interface card user manual provides hardware and software installation, safety guidelines, and configuration instructions.
About this manual
The OpenVox G400P is a 4‑channel GSM interface card that fits standard PCI 2.2 slots and combines GSM modules with SIM cards to enable VoIP PBX, SMS gateway, and GSM‑VoIP gateway applications. It supports multiple voice codecs and various GSM frequency bands for flexible deployment.
This manual covers safety precautions, hardware installation steps, PCI slot requirements, LED indicators, power connections, and GSM module handling. It also details software installation, driver loading, Asterisk integration, dial‑plan configuration, and provides hardware specifications and GSM frequency band tables in the appendices. This manual is written in Chinese.
What's inside
- Safety Instructions
- Test Environment
- Hardware Installation
- PCI Slot and Power Connection
- LED Indicators
- GSM Module and SIM Card
- Main Chip Overview
- Software Installation
- Asterisk Integration
- Appendix A – Hardware Specifications
Specifications
| Weight | 212 g |
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| Dimensions | 179 mm × 99 mm × 16 mm (L × W × H) |
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| PCI Interface | Compatible with 3.3 V and 5 V PCI 2.2+ slots |
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| Power Connector | 12 V 4‑pin |
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| Power Consumption | 30 W (four modules) |
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| Operating Temperature | 0 °C ~ 50 °C (operating), –40 °C ~ 125 °C (storage) |
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| Required RAM | 128 MB+ |
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| Minimum CPU | 800 MHz |
Frequently asked questions
Which operating system and kernel versions are supported by the G400P?
The card is tested with CentOS 5.6 and requires a Linux kernel version 2.4.x or 2.6.x.
What GSM frequency bands does the G400P support?
It supports four‑band GSM/GPRS: 850 MHz, 900 MHz, 1800 MHz, and 1900 MHz.
How many GSM modules and SIM cards can be used with the G400P?
The card accommodates four GSM modules and four SIM cards.