Basic CPU with AUX interface

The basic CPU board with AUX interface carries the main CPU, which supports all basic features of the gateway (web interface, 2N® SIM Star support, SMS messaging, monitoring). Moreover, test calls can be made via the AUX interface.

Board Description

The CPU board contains a processor system controlling the whole system. The board is designed on a 4-layer PCB of the size of 160x100mm. A simple COM1 serial interface, an Ethernet connector (100Base-T), AUX interface for jack 3.5mm and 4 board status LED indicators are located on the front panel.

 

 

  1. Indicates board supply; the LED is green if the gateway is powered on and shows no malfunction.
  2. Indicates board initialisation or malfunction.
  3. Indicates CDR/SDR memory (not shining = empty; flashing 1:1 = 50% full memory; shining = 100% full memory).
  4. Serial interface of the basic CPU.
  5. 10BaseT Ethernet connection of the basic CPU.
  6. AUX interface for Jack 3.5 mm. Intended for test calls. (3.3.5 Utils)
  7. Indicates call via AUX interface.
  8. Reset button.

COM1 Serial Interface Parameters

The COM1 interface is used as a local port for temporary connection of a PC (terminal) for installation and servicing purposes and permanent connection of the SMS server (supervision PC). It provides local monitoring, configuration, tracing and firmware upgrade. 

  • Transmission rate: 57.6 kbps
  • Bit format: start, 8bit, stop (no parity)
  • Signals: RXD, TXD, RTS, CTS, GND

Configuration Jumpers

The figure below shows the CPU configuration jumpers. The jumpers can be connected in one of the following two positions.

  • Position 1 – UNIV standart
  • Position 2 –  HUAWEI standart

 

 

Figure: Configuration Jumpers