BusinessPhone Communication Platform 4.0
Maintenance Instruction ASB 150 02 > Detailed Information On Boards

## Considerations for ELU-* and IC-CU boards

The central software block which handles ELU-A, ELU-C, ELU-D and IC-CU boards is EX.

Note

It is NOT possible to change the number of individuals of an IC-CU board by performing a shutdown of the board, replacing the FECU by another one (which may offer more/less individuals than the old one) and restarting the board.

#### Insertion of an ELU/IC-CU board

There are two possibilities when a new board is inserted at a certain position: There could have been a board of the same type and with the same number of individuals on it or the slot could have been unused.

When adding an IC-LU board, this is handled only by IC-CU and does not involve the ASB 150 02 central software. Thus neither further actions are required, nor is it possible to add nor to delete an IC-LU by the central software of the ASB 150 02.

Note

Before removing an IC-CU board, save the data by using the Cordless System Manager (CSM), and after replacing the IC-CU board transfer the configuration data from the previously installed board, otherwise all cordless telephone sets need to be re-programmed.

The main difference between insertion of a new board in a previously vacant slot and in a slot where another board of the same type was inserted before, is that in the first case no directory numbers are assigned to the individuals after the board has been started. This directory number assignment has to be done from RASC and Cordless System Manager (CSM) afterwards.

#### Shut down of an ELU/IC-CU board

##### Operator Instrument

On an operator instrument calls can be parked with the loop keys, the OP-hold key and the monitor key. If only one call is parked on the loop key and this is an incoming external call, it is rerouted back to the operator queue. If it is any other type of call the call is terminated. For the OP-hold and the monitor key the same applies as for the call on a loop key. If there are no more active operator instruments available for the OP-queue, all calls within the queue are re-routed to the shut down re-route position.

The new new command is:

2095 |  | Shut down reroute position (default = 0FFFFh)

##### Tandem Configuration

If a master is shut down, no calls can be made to the slave extension. But calls to a master/slave extension with a shutdown slave extension are presented on the master extension.

#### Insertion of an ELU/IC-CU board

##### Considerations for Diversion of an Extension

If an extension has activated any kind of diversion (e.g. follow-me) to a directory number that is not available in the system, the call is not diverted but instead starts ringing at the diverting extension. So it is not necessary to check activated diversion during deletion of a board. If diversion of an extension is deactivated, it is not possible to reactivate it again until a valid diversion address is programmed.

Revision: E © Ericsson Enterprise 2003