- Same board type, but greater number of channels > board is activated with the number of
channels stored in the EEPROM. The additional ports are not activated.
- New board at empty slot:
- Board inserted last in accordance with the component placement sequence > all boards
are activated, the numbering plan is updated without gaps.
- Board inserted before the appropriate board in accordance with the component
placement sequence > board is activated and inserted in the numbering plan after the last
board.
Reinitialisation > by entering new passwords, the system reverts to the status which existed
before initial cutover. The system configuration data stored in the customer database is deleted.
The changes to the system configuration can then be implemented as required.
Proceed as follows if measures to expand the system configuration require reinitialisation of the
numbering plan:
- Enter the reinitialisation password > the existing configuration is deleted.
- Disconnect the system from the power supply, unscrew and remove the PSU/UPS, insert the
new board(s).
- Connect and screw in the PSU/UPS, turn on the system and a continuous number plan is
generated (as was the case when the system was first initialised).
Changes to the numbering plan result in changes to the extension-related data.
Only those ports provided for in accordance with the maximum configuration are activated if
the maximum line configuration is exceeded.
A mixture of subscriber line circuits and trunk lines on one S
0
board can result in gaps in line
numbering as all ports on the board are initially activated as trunks and are only subsequently
reconfigured.
S0 stations: the extension numbers assigned to terminals connected to the STLS board (S
0
bus)
are determined independently of the MSN programmed for the terminal.
If an MSN has not been or cannot be programmed at a terminal, the system assigns a standard
MSN which can be administered for each S
0
port using the PC tool.
The PC tool can be used to reprogram the standard MSN.
The MSN is assigned by the system when the S
0
port is configured as the Euro-bus. It can be
checked via the administration tool.
(Assistant T: code 20 4 3 > S
0
bus MSN.)
5.2.8 Connecting ISDN (S0) interfaces
Between 1 and 4 ISDN-S
0
interfaces can be connected to each of the Mini-Western jacks of the STLS
board(s). The STLS board interface(s) can be configured as required.
The following configurations are supported:
DSS1 trunk (point-to-point)
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