Instruction manual

Using a Cordless Headset with the Console
15
Powering the Console
The 5540 IP Console is powered by the Power over Ethernet (POE) connection. The POE also
supplies power for up to two 48-button IP PKMs.
Using a IP PKM48 with the Console
Up to two IP PKM48 modules can be connected to the console. The keys on the modules are
programmed by your system administrator as a Mailbox or Busy Lamp Field (BLF) keys. Each
key has a lamp that indicates the status of the associated line or extension.
When line/extension is: the indicator is:
Idle Off
Busy On
Ringing Slow Flash
On Hold Fast Flash