HP ProCurve 6400cl Installation And Getting Started Manual page 35

The following picture demonstrates and example of connectivity between an
RPS/EPS device and a Switch device.
RPS Power: 12V
Device Connected R1 R2
RPS 1 RPS 2 RPS 3
Power Status
RPS output port
RPS/EPS Operation
The RPS/EPS monitors the power signal from the switch by detecting that the
RPS/EPS is connected to a switch with an RPS/EPS cable. When the power
from the switch is no longer detected, the RPS/EPS will turn on and provide
power to the switch within 1ms.
The RPS/EPS supports hot plugging of the RPS/EPS cable without causing a
reboot of the switch or causing the power supply in either the RPS/EPS or
switch to shut down temporarily or permanently. For more information refer
to the documentation that came with the RPS/EPS.
Switch 6400cl device,
RPS input port
backup to one connected device. Lowest-numbered port has priority.
R3 R4
RPS 4 RPS 5
Installing the Switch
Installation Procedures
EPS Power: 50V 370W total for PoE applications. Power is shared when
R5 R6 E1
RPS 6 EPS 1 EPS 2
both ports are used.
Device
E2
Connected
Power
Status
Line: 50/60 Hz.
0 - 2 4 0 V~ 9.1A (9,1A) 10
2-17