Mitel Navigator 3300 ICP, Hardware User'S Manual, Page: 178 / 266

3300 ICP Hardware User Guide
170 Release 3.3
The 3300 Power Dongle will permit the Mitel IP Phone to receive power from Cisco-powered
LAN ports. The dongle will accept 48VDC across pins 1, 2 and 3, 6 from the end-span hub and
pins 4, 5 and 7, 8 from the mid-span hub. In either case, the 3300 Power Dongle 48VDC output
appears on pins 4, 5 and 7, 8.
Pre-Release 3.2 IP Phones
The Mitel IP set must conform to the Cisco Discovery Protocol (CDP) startup sequence to
sustain power to the set from a Cisco switch or hub through the 3300 Power Dongle. The
updated set firmware load is delivered as part of the 3300 ICP Release 3.2 software.
WARNING: Sets delivered prior to Release 3.2 will NOT be equipped with the firmware
download capability. Special configuration is required to permit these telephones to be
powered from a Cisco switch or hub through the 3300 Power Dongle.
To make the Mitel IP telephone conform to the Cisco Discovery Protocol:
1. Verify that the IP network, to which the set will be connected, does not have any Release
3.0 3300 ICPs that are accessible from the IP set during its boot sequence. You must
ensure that the IP Phone will get the R3.2 set firmware load.
2. If R3.1 ICPs are located in the same DHCP domain as the R3.2 ICP, please update the
R3.1 IP Phone TFTP Server firmware.
3. The set must be powered from a wall plug before connecting to the IP network.
4. After connection to the IP network, the IP set will receive a new load from the 3300 ICP.
5. After the set has received its updated load, the 3300 Power Dongle can be inserted in the
Ethernet path and the power cord removed.