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Specifications
Release 3.3 105
Cisco Switches
Cisco end-span, power/data hubs include the Catalyst 3500, 4000 and 6000. The Cisco
WS-PWR-PANEL is a mid-span power hub. These hubs each have the capability to power the
following Mitel IP Phones: 5001 IP Phone, 5005 IP Phone, 5010 IP Phone, 5020 IP Phone,
and 5140 IP Appliance.
The WS-PWR-PANEL is electrically located between a conventional data hub and the powered
device. This unit passes through the data pairs from the data hub to the terminal device while
inserting power on the spare pairs (4/5 and 7/8).
Before enabling port power this unit generates a signal that a power-ready device will loop
back. This signal is transmitted on the 7/8 pair and if this is looped back on the 4/5 pair the hub
then assumes a power-ready device is connected and enables power on that port. The hub
continuously probes the port with signal to ensure the device is still connected. When the hub
no longer detects the looped-back probing signal it assumes the terminal device has been
disconnected and disables power to that port.
The Catalyst 3500, 4000 and 6000 series products provide 48VDC on the data pairs (1/2 and
3/6).
Before applying this voltage on its port the Cisco hub first ensures that the attached device is
capable of accepting power. It does this by transmitting a Fast Link Pulse (FLP) on one data
pair while monitoring the second data pair. A power-ready device will loop back this signal to
the hub via the second data pair. Once the hub senses this return signal it ramps up voltage
on the port.
Once enabled the port continues to provide power provided the link signal from the terminal
device is present. When this signal disappears the port interprets this as a disconnection of the
terminal device and then disables power to that port.
PowerDsine In-line Power Unit
PowerDsine 24PT In-line Power Unit Components
The PowerDsine In-Line Power Unit (PD-PH-6024/AC/48) has the following hardware features:
• Remote power feeding of Ethernet terminals
• Eliminates the need for terminal’s AC outlets, UPS and AC/DC adapters
• 24 10/100BaseT data + power combined channels
• Universal 100-240VAC, 50/60Hz power input
• Independent overload & short-circuit protection for each channel
• Bicolor LED Port Status Indicators
• RS-232 software download, monitoring and control serial port
• Standard 19” 1U rack mounting hardware included.
• 16.8 Watts output per port (24 port model has a 200W overall power limit).
• IEEE 802.3af (Draft 3.0) compliant power outputs.