2N® BlueTower

Basic Dimensions

2N® BlueTower is the smallest of the 2N® PRI gateway family, featuring the capacity up to 8 GSM / UMTS channels. The system is integrated in a small 19" subrack of the height of 3U, width of 29HP and depth of 320mm. The front side is open, equipped with slots for plug-in boards with front panels. The panel includes the main switch. In case not all GSM/UMTS cards are plugged in, the vacant section of the front side must be covered with a fixed panel(s). An optional antenna splitter can be installed.

The whole backside is covered with a panel with a built-in safety-fuse box and power socket. The main power supply unit is inside the system and is fully designed for passive cooling. The bottom and upper sides are covered with EMC sheet.

The system bus is designed as a printed circuit board (PCB) with DIN connectors and fitted to the inner subrack carrier profiles.

Front Side Division

The subrack width is divided into 7x4HP-wide modules in the following sequence (from right to left):

 

VoIP version

  • VoIP card – 4HP
  • Basic or enhanced CPU card – 4HP
  • Empty position – 4HP
  • GSM or UMTS cards (one for two GSM/UMTS channels) – Remaining space (each 4HP)

ISDN version

  • Empty position – 4HP
  • Basic or enhanced CPU card – 4HP
  • 1ISDN PRI or 2ISDN PRI card – 4HP
  • GSM or UMTS cards (one for two GSM/UMTS channels) – Remaining space (each 4HP)

ISDN + VoIP version

  • VoIP card – 4HP
  • Basic or enhanced CPU card – 4HP
  • 1ISDN PRI or 2ISDN PRI card – 4HP
  • GSM or UMTS cards (one for two GSM / UMTS channels) – Remaining space (each 4HP)
  • Please keep the GSM/PRI/CPU/VoIP card positions. The positions are fixed and may not be interchanged.
  • 4 positions are only designed for the GSM/UMTS cards (from left to right).

Examples of Used Types

 

Figure: 2N® BlueTower with 2 UMTS Boards, Enhanced CPU, VoIP Interfaces and Integrated Antenna Splitter

 

 

Figure: 2N® BlueTower with 2 UMTS Boards, Basic CPU, 2 ISDN PRI Interfaces and Integrated Antenna Splitter

 

Figure: 2N® BlueTower with 2 UMTS Boards, Basic CPU, 2 ISDN PRI, VoIP Interfaces and Integrated Antenna

 

Figure: 2N® BlueTower with 4 UMTS Boards, Basic CPU, 2 ISDN PRI, VoIP Interfaces

Note

  • Please keep all cards in the right positions. Wrong positions will cause malfunction of whole system!
  • In the case of VoIP card replacement by ISDN PRI (and vice versa) please read the instructions in Section 2.4 Installation.

Power Supply

The system uses an industrial power supply unit with natural cooling and an auxiliary external fan, which is switched on automatically whenever the power supply temperature exceeds 70°C. The power supply unit is designed with a 30% reserve even under the maximum load. 

 

Power supply types

  • Internal 90–260V / 50 – 60 Hz (output 5V / 30A).

Caution

  • Make sure that the incoming supply is matching the requested values!
  • High voltage may cause a serious injury or death!

Tip

  • You are recommended to connect the gateway to the UPS system.