D-Link DES-3828 Product Manual - Page 49

xStack DES-3800 Series Layer 3 Stackable Fast Ethernet Managed Switch CLI Manual 7 POE COMMANDS DES-3828P supports Power over Ethernet (PoE) as defined by the IEEE 802.3af specification. Ports 1-24 supply 48 VDC power to PDs over Category 5 or Category 3 UTP Ethernet cables. DES-3828P follows the standard PSE pinout Alternative A, whereby power is sent out over pins 1, 2, 3 and 6. DES-3828P works with all D-Link 802.3af capable devices. DES-3828P includes the following PoE features: The auto-discovery feature recognizes the connection of a PD (Powered Device) and automatically sends power to it. The auto-disable feature will occur under two conditions: first, if the total power consumption exceeds the system power limit; and second, if the per port power consumption exceeds the per port power limit. The active circuit protection feature automatically disables the port if there is a short. Other ports will remain active. PDs receive power according to the following classification: Class 0 1 2 3 Max power used by PD 0.44 to 12.95W 0.44 to 3.84W 3.84 to 6.49W 6.49 to 12.95W PSE provides power according to the following classification: Class 0 1 2 3 Max power provided by PSE 15.4W 4.0W 7.0W 15.4W The PoE commands in the Command Line Interface (CLI) are listed (along with the appropriate parameters) in the following table. Command config poe system config poe ports show poe system show poe ports Parameters {power_limit | power_disconnect_method [deny_next_port | deny_low_priority_port]} [all | ] {state [enable | disable] | priority [critical | high | low] | power_limit [class_0 | class_1 | class_2 | class_3 | user_define ]} {} Each command is listed in detail in the following sections. 45