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Cisco SIP IP Phone Administrator Guide
Chapter 1 Product Overview
Cisco SIP IP Phone Connections
Connecting to the Network
The Cisco SIP IP phone has two RJ-45 ports that each support 10/100 Mbps half- or full-duplex Ethernet
connections to external devices—network port (labeled 10/100 SW) and access port (labeled
10/100 PC). You can use either Category 3 or 5 cabling for 10 Mpbs connections, but use Category 5 for
100 Mbps connections. On both the network port and access port, use full-duplex mode to avoid
collisions.
Network Port (10/100 SW)
Use the network port to connect the phone to the network. You must use a straight-through cable on this
port. The phone can also obtain inline power from the Catalyst switch over this connection. See the
“Connecting to Power” section on page 1-13 for details.
Access Port (10/100 PC)
Use the access port to connect a network device, such as a computer, to the phone. You must use a
straight-through cable on this port.
Connecting to Power
The Cisco SIP IP phone can be powered by the following sources:
• External power source—Optional Cisco AC adapter and power cord for connecting to a standard
wall receptacle.
• WS-X6348-RJ45V 10/100 switching module—Provides inline power to the Cisco SIP IP phone
when connected to a Catalyst 3500, 4000, or 6000 family 10/100BASE-TX switching module.
This module sends power on pins 1 and 2, and 3 and 6.
• WS-PWR-PANEL—Power patch panel provides power to the Cisco SIP IP phone, which allows the
Cisco SIP IP phone to be connected to existing Catalyst 4000, 5000, and 6000 family
10/100BASE-TX switching modules.
This module sends power on pins 4, 5, 7, and 8.
• WS-X4148-RJ45V—48-port 10/100 Ethernet with inline power module for the Catalyst 4006.
• WS-X4095-PEM—VoIP DC Power Entry module for the Catalyst 4006.
• WS-X4608-2PSU and WS-X4608—External -48V DC power shelf common equipment for the
Catalyst 4006 with two AC-to-DC power supply units (PSUs) and one empty bay for redundant
option, and the 110V 15A AC-to-48V DC PSU redundant option for the power shelf.
• WS-C3524-PWR-XL-EN—Catalyst 3524-PWR XL switch.
Note Only the network port (labeled 10/100 SW) supports inline power from the Catalyst switches.
For redundancy, you can use the Cisco AC adapter even if you are using inline power from the Catalyst
switches. The Cisco SIP IP phone can share the power load being used from the inline power and external
power source. If either the inline power or the external power goes down, the phone can switch entirely
to the other power source.
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