User guide

Table Of Contents
Routine maintenance
137
Figure 19: Connecting two expansion units
7. Power up the system.
Performing a software upgrade
You perform a software upgrade to install a new software
load. Software upgrades are distributed either on a
software CD-ROM or you can download them from the
Mitel Online website.
Not all software upgrades require a voice mail software
upgrade. Read the Field Change Instruction (FCI)
document first. ONLY upgrade voice mail software when
required.
UPLINK CABLES
Y-POWER CABLES
POWER CABLE EXTENDER CORD