2.3 Position and Port Numbering

Each card and port is assigned a specific unique HW address.

The address consists of 4 parts and is stated in the form: R : C : B : P, whereas the separate letters stand for the following:

  • R – rack
    • Rack represents the entire system appliance consisting of the basic module and four extension modules (case), in the current version only one Rack is supported. The rack address is thus 0.
  • C – case
    • Covers the basic or one of the four extension modules.
    • The address of the basic module is 1, the extension modules are assigned addresses from 2 to 5 according to their SWITCH card Connections.
  • B – board
    • The separate cards (board) are assigned addresses from left to the right, both in the basic as well as the extension modules. The address of the first position in the module is 1 and is reserved for maincase CPU or for extender CPU.
    • Compared to the extension module, in which the cards are assigned addresses from 1 to 12, the assigning of addresses in the basic module is governed by predefined rules.

The basic module uses following rules for the card positions and assigning of addresses.

  • Address 1
    • Reserved for controlling CPU only (position 1)
    • the card address is 0:1:1
  • Addresses 2,3,4
    • Reserved for the PRI and VoIP cards (positions 2,3 and 4)
    • the cards addresses are 0:1:2, 0:1:3 and 0:1:4
  • Address 5
    • Reserved for the SWITCH card (position 5)
    • the card address is 0:1:5
  • Addresses 6,7,8,9,10,11,12,13 and 14
    • The addresses correspond to the positions 6,7,8,9,10,11,12,13 and 14 and can be used for any line card. An exception are the positions with the addresses 6, 9 and 12, in which if you use a BRI or DIGITAL COMBO card the first 2 ports on the card are always NT and may not be changed. 
  • P – port
    • The card ports are assigned the addresses from left to the right and from top to the bottom.
    • The addresses start with 1.
    • For the purpose of better orientation the PRI, GSM and Audio/IO/Relay cards have the serial numbers of the ports printed on their front side.