Power Over Ethernet
Issue 2 July 2005
199
Figure 30: Powered Device Detection
Specific Resistance Signature (IEEE 802.3af)
The C360-PWR switches apply a low voltage to the power feed pairs and measures the current.
A resistance of 19k
Ω
to 26.5k
Ω
is considered valid according to the IEEE standard; if a valid
signature is detected, power is supplied to the port.
PD Connected
Once power is provided to a port, it is checked periodically to see if a PD is still connected. If a
PD is disconnected from a powered port, then power is denied to the port.
“Plug and Play" Operation
You can add and remove powered devices without manually reconfiguring the switch, since it
performs a periodic automatic load detection scan on non-powered ports.
●
If a powered device that fits the above criteria is detected on a non-powered port, then
power is applied to the port.
Start Check
Apply Power
Yes
No
No
Yes
PD still
connected?
Valid
Resistance
Signature?
Содержание C360 Manager
Страница 12: ...Contents 12 Installation and Configuration Guide Avaya C360 Multilayer Stackable Switches version 4 5...
Страница 17: ...Issue 2 July 2005 17 Section 1 Avaya C360 Overview...
Страница 18: ...18 Installation and Configuration Guide Avaya C360 Multilayer Stackable Switches version 4 5...
Страница 29: ...Issue 2 July 2005 29 Section 2 Installing the C360...
Страница 30: ...30 Installation and Configuration Guide Avaya C360 Multilayer Stackable Switches version 4 5...
Страница 52: ...Installation 52 Installation and Configuration Guide Avaya C360 Multilayer Stackable Switches version 4 5...
Страница 91: ...Issue 2 July 2005 91 Section 3 Avaya C360 Configuration...
Страница 92: ...92 Installation and Configuration Guide Avaya C360 Multilayer Stackable Switches version 4 5...
Страница 210: ...C360 Device Manager 210 Installation and Configuration Guide Avaya C360 Multilayer Stackable Switches version 4 5...
Страница 211: ...Issue 2 July 2005 211 Section 4 Troubleshooting and Maintaining the Avaya C360...
Страница 212: ...212 Installation and Configuration Guide Avaya C360 Multilayer Stackable Switches version 4 5...
Страница 222: ...Maintenance 222 Installation and Configuration Guide Avaya C360 Multilayer Stackable Switches version 4 5...
Страница 230: ...Mixed Stacks 230 Installation and Configuration Guide Avaya C360 Multilayer Stackable Switches version 4 5...
Страница 248: ...248 Installation and Configuration Guide Avaya C360 Multilayer Stackable Switches version 4 5 Index...