FTOS Configuration Guide for the C-Series - Force10 Networks

When a failed PSU is replaced and there is sufficient power for PoE, power is automatically re-supplied for
previously configured PoE ports, and power is supplied first to ports with the highest priority.
Figure 455 Order of PoE Re-Supply for the Example C-Series Configuration
Powering Additional PoE Ports on the S-Series
By default, 320 Watts is available for PoE on the S50V and S25V models of the S-Series. You have the
option of enabling more power by connecting the external Force10 DC 470W Redundant Power Supply to
the Current Sharing terminal of the S50V and S25V. This power supply is in backup mode by default, but
you can use the power budget stack-unit command to allow that external power supply to be used for
powering PoE ports. 790W is the maximum that you can allocate to PoE, although the combined output of
the internal AC power supply and the external DC power supply is 940W. That external power supply is
the only power supply that you can use to add power for PoE with the S-Series.
Message 28 appears if you attempt to use the power budget command when an external power supply is
not connected.
Message 28 External Power Supply Not Found
Deploying VOIP
Figure 456 shows a basic configuration for a deployment in which the end workstation plugs into an IP
phone for its Ethernet connection.
Figure 456 Office VOIP Deployment
0
1
2
Re-supply
% Error: External power supply not found or incompatible external power supply.
648 Power over Ethernet