Cisco 6921 User Manual page 12

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3
2
4
1 DC adaptor port (DC48V).
2 AC-to-DC power supply (optional).
AC power wall plug (optional).
3
Network port (10/100 SW) connection.
4
IEEE 802.3af power enabled.
2
6
5
5
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7
Access port (10/100 PC) connection.
Handset connection.
Analog headset connection (optional).
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