Nortel 1110 Installation And Operation Manual page 411

Figure 40
IP Phone 1140E connections
Note 1: The IP Phone 1140E supports both AC power and Power over
Ethernet options, including IEEE 802.3af Power Classification 3. To use
Power over Ethernet, where power is delivered over the CAT5 cable, the
LAN must support Power over Ethernet, and an AC adapter is not
required. To use local AC power, the optional AC adapter can be ordered
separately.
Note 2: You must use CAT5e (or later) cables if you want to use gigabit
Ethernet. Figure 40 shows the IP Phone 1140E connections.
Nortel IP Phone 1140E
IP Phones Description, Installation, and Operation
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