Redundant Power Supply (Rps); At-Rps8000 - Allied Telesis AT-8800 Hardware Reference Manual

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Redundant Power Supply (RPS)

RPS units enhance network reliability by providing backup coverage for switch
Power Supply Units (PSUs).
AT-8800 Series switches have an RPS connector on their rear panel. The
connector allows the switch to be used in conjunction with an RPS.
When an RPS is required, AT-8848 and AT-8824 models use the AT-RPS8000
system. RPS systems can be purchased separately.

AT-RPS8000

The AT-RPS8000 is a chassis that holds up to four removable AT-PWR8000 RPS
units. To provide backup power to AT-8824 and AT-8848 switches, each switch
must be connected to an AT-PWR8000 power unit, and the power unit must be
installed in an AT-RPS8000 chassis.
Table 9 on page 24 lists the RPS connector's pin numbers and pin functions, as
found on AT-8824 and AT-8848 switches.
Table 9: RPS Connector Pin Numbers and Functions.
Pin Number Function
1 +12VDC
2 Remote Sense (RS) +5VDC
3 Remote Sense (RS) Ground
4 Remote Sense (RS) +3.3VDC
5 Redundant Power Supply (RPS) Present
6 Ground (+3.3VDC Return)
7 Ground (+5VDC Return)
8 +5VDC
9 Ground (+12VDC Return)
10 +3.3VDC
11 Ground (+3.3VDC Return)
12 +3.3VDC
13 Ground (+3.3VDC Return)
14 +3.3VDC
15 +5VDC
16 Ground (+5VDC Return)
AT-8800 Series Switch
C613-03066-00 REV F