Avaya 5900 Series Installing Manual page 28

Installation preparation
The following table lists the switch model and the supported number of fan trays and power supply
units:
Table 12: Supported number of fan trays and power supply units
Switch Model
ERS 5928GTS, ERS 5952GTS-PWR+,
ERS 5928GTS-PWR+, ERS 5928GTS-
uPWR, ERS 5928MTS-uPWR, ERS
5928MTS-uPWR
ERS 59100GTS, ERS 59100GTS-PWR+
Cooling fan trays
Cooling fan trays support hot-swap and are available in two models to support front to back, or back
to front airflow modes. Cooling fan trays are included and must be installed before operating the
switch.
The cooling system is designed to support normal operation over the specified operating range with
a single fan failure. Note that fan noise may increase in this situation. The cooling system is also
designed to operate for a brief period of time on a single fan tray, allowing replacement of a
defective fan tray while the switch is operating.
The following figure shows cooling fan trays.
Figure 3: Fan tray
Power supply compatibility with cooling fans
Power supplies support hot-swap and are available in two models to support cooling fan airflow
modes.
September 2017
Supported number of fan
trays
2
4
Installing Avaya ERS 5900 Series
Comments on this document? infodev@avaya.com
Supported number of power
supply units
2
4
28