Allied Telesis AT-PWR250 User Manual

Page of 92
AT-RPS3000 Redundant Power Supply Installation Guide
31
Figure 15. Example of Two PoE+ Switches
In Figure 16 on page 32, two low-power switches are supported by a 
single power supply module, in slot A of the chassis. One switch supports 
PoE+ while the other does not. (Remember, the terms low- and high-
power do not refer to the PoE+ feature. A switch that supports the PoE+ 
feature may be a low- or high-power device.) Because it is a non-PoE+ 
switch, the AT-x610-24Ts Switch is connected to RPS 1 System port, from 
which it receives system power for its switching functions. In contrast, the 
AT-x610-24Ts/X-POE+ Switch is connected to the RPS 2 System/PoE+ to 
receive redundant system power and active PoE+ power.
B
B
1
2
3
4
SYSTEM
PoE+ / SYSTEM
PoE+ / SYSTEM
SYSTEM
MODULE B
MODULE A
A
A
AT
-P
W
R
8
00
DC OUT
FAULT
100-240 VAC~12A MAX
AT
-P
W
R
8
00
DC POWER
FAULT
100-240 VAC~12A MAX
PO
WER SUPPL
Y
RPS 
READY
RPS INPUT
12V/21A MAX
WARNING
This unit may have more than one power input. To reduce the risk of 
electric shock, disconnect both A/C and RPS inputs before servicing 
unit.
AT
-P
W
R
8
00
PO
WER SUPPL
Y
RPS 
READY
RPS INPUT
12V/21A MAX
WARNING
This unit may have more than one power input. To reduce the risk of 
electric shock, disconnect both A/C and RPS inputs before servicing 
unit.
A
T
-PWR
8
00
2143
DC OUT
FAULT
100-240 VAC~12A MAX
DC OUT
FAULT
100-240 VAC~12A MAX
AT-x610-24Ts/X-POE+ Switch
AT-RPS3000 Chassis
(Low-power)
with Two Power Supplies
RPS 4
PoE+/System
Port
AT-x610-48Ts/X-POE+ Switch
(High-power)
RPS 2
PoE+/System
Port
Slot A
Slot B