Cabletron Systems SmartStack STS16-20FRM, Installation And User Manual

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Switch Overview SmartStack STS16-20RM/STS16-20FRM Token Ring Switches, P/N: 9032957-01
Optional Redundant Power Supply
The switch has an input for a backup power supply. It is compatible with the
SmartStack STS-RPC Redundant Power Center, which can supply backup power
for up to six switches, when up to six SmartStack STS-PSU Redundant Power
Supply Units are installed in the chassis. This gives a high degree of resilience to
power supply failures. The switch will start using the external power supply if the
internal supply fails. The switch monitors the power source and informs the
network management system which supply is in use.
The SmartStack STS-8SU Stacker Unit also accommodates an optional switch
matrix STS-SM, which includes a redundant power supply, ensuring the highest
degree of resilience in the stack of switches.
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Caution: The redundant power supply unit SmartStack STS-PSU is not hot-
swappable. Both the SmartStack STS-PSU and the switch must be off before
connecting or disconnecting the DC power cable.
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