Installation manual
118 20/10/2004 PS10270JENAA01
Upgrading from an M6501R IP PBX to an M6501L IP PBX
Textual specification
The aim of this procedure is to describe how to upgrade from an M6501R IP PBX to an M6501L
IP PBX. This operation is necessary if an expansion cabinet is to be fitted to an M6501R IP PBX.
New power supply modules are required for the main cabinet:
• a dedicated uninterruptible AC/DC power supply
• an external battery
Steps
1 On the M6501R IP PBX, power off the cabinet (battery + mains). Remove the front cover of
the cabinet.
2 Disconnect and remove the internal battery from the cabinet.
3 Disconnect and remove the uninterruptible AC/DC power supply from the cabinet.
4 Install and secure a new uninterruptible AC/DC power supply, dedicated to the M6501L IP
PBX, in the cabinet. Do not power on the uninterruptible AC/DC power supply.
5 Install the expansion shelf and secure it in place with the screws provided.
6 Insert the circuit cards in the new shelf and connect them as required.
7 Install a new backup battery, specific to the M6501L IP PBX, in the cabinet.
8 Close the front cover of the cabinet.
9 Power on the uninterruptible AC/DC power supply.
When adding a cabinet and an expansion shelf (shelf 3), follow the procedures in Adding an
expansion cabinet.
Power off
Power off the system before opening the cabinet.










