Product Support

Function

The RPS1800 has the following features:
1.For non-PoE switches, the RPS1800 can provide 6:1 power redundancy without an 870 W
PoE power module:
– The RPS1800 can connect to a maximum of six switches and ensure seamless failover
for at most one switch if the internal power module of the switch fails.
– When the internal power module of the switch powered by the RPS1800 recovers, the
RPS1800 immediately returns to the backup state.
– Among the six DC output ports, port 1 has the highest priority. When the RPS1800
connects to six switches, the switch connected to port 1 preferentially receives power
from the RPS1800.

2.For PoE switches, the RPS1800 supports the forcible PoE power supply mode (default)
and the 6:1 power redundancy mode.

Forcible PoE power supply mode:
– The RPS1800 must be configured with one or two 870 W PoE power modules.
– The forcible PoE power supply mode is the default mode for the PoE switches connected
to the RPS1800. In this mode, the RPS1800 provides PoE power supply to the PoE
switches. When configured with one 870 W PoE power module, the RPS1800 can
provide PoE power supply for only one PoE switch. When configured with two 870 W
PoE power modules, the RPS1800 can provide PoE power supply for two PoE switches,
800 W PoE power for each switch
– The PoE power provided by the RPS1800 and the PoE power of a switch's internal
power modules do not accumulate. That is, when a PoE switch is connected to the
RPS1800, its maximum PoE power is 800 W.
– The RPS1800 provides power redundancy for system and PoE power modules of the
connected PoE switches. However, it can provide power redundancy for only two PoE
switches at the same time.
– The six DC output ports have the same priority.

– You can use the rps cold-backup command to switch to the 6:1 power redundancy
mode. The S5700-28P-PWR-LI-AC and S5700-52P-PWR-LI-AC do not support the
6:1 power redundancy mode.

3.6:1 power redundancy mode:
– If the RPS1800 has no 870 W PoE power module, it provides the same functions for
PoE switches as it does for non-PoE switches.
– If the RPS1800 has 870 W PoE power modules installed, it provides power redundancy
for the system and PoE power modules of PoE switches but does not provide PoE power
supply for the switches.
– The RPS1800 can provide PoE power redundancy for only one switch and requires only
one 870 W PoE power module.

Application

The RPS1800 can be deployed on various networks to ensure non-stop operation of the networks.

Figure 3-25 and Figure 3-26 show different deployments of the RPS1800.

When an RPS1800 uses the same external power supply system as the connected switches, it
can prevent service interruption caused by failures of the switches' internal power modules.
When an RPS1800 uses a different external power supply system than the connected switches,
it can prevent service interruption caused by failures of switches' internal power modules and
external power supply system. Therefore, this deployment is more reliable.

If the RPS1800 has 870 W PoE power modules installed, it can provide PoE power for PoE
switches, as shown in Figure 3-27.

Indicators on the panel