Avaya
3600 · Question #53
A call centre is using the stacks of Ethernet Routing Switches (ERS) 5520-48T-PWR to supply power over Ethernet (PoE) to their IP telephones. Each switch is attached to 48 telephones. The call…
The correct answer is B. Each switch requires an RPSU 15 in addition to AC to supply full power to all ports. See the full explanation below for the reasoning.
Question
A call centre is using the stacks of Ethernet Routing Switches (ERS) 5520-48T-PWR to supply power over Ethernet (PoE) to their IP telephones. Each switch is attached to 48 telephones. The call centre begins operation at 9:00 am each day and they verify that the switch can supply enough power to support each telephone drawing their maximum power for all switches simultaneously. They are using the IP Phone port 10/100 switch. Which statement it is true if all telephones are drawing 13.2 watts simultaneously?
Options
- AEach switch of supplying full port to all ports with only the AC input
- BEach switch requires an RPSU 15 in addition to AC to supply full power to all ports.
- CRPSU 15 can support four ERS 5520 switches that supply full power to all ports.
- DEach switch can supply full power to all ports while the AC is unavailable if attached to
How the community answered
(40 responses)- A3% (1)
- B73% (29)
- C18% (7)
- D8% (3)
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