Avocent DSR 1021, Installer/User Manual

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DSR Installer/User Guide
Figure 1.2: The DSR1021 Switch
Safety Precautions
To avoid potential video and/or keyboard problems when using Avocent products:
•
If the building has 3-phase AC power, ensure that the server and monitor are
on the same phase. For best results, they should be on the same circuit.
To avoid potentially fatal shock hazard and possible damage to equipment,
please observe the following precautions:
•
Do not use a 2-wire power cord in any Avocent product confi guration.
•
Test AC outlets at the server and monitor for proper polarity
and grounding.
•
Use only with grounded outlets at both the server and monitor. When
using a backup Uninterruptible Power Supply (UPS), power the server, the
monitor and the DSR1021 switch off the supply.
NOTE: The AC inlet is the main disconnect.
Rack mount safety considerations
•
Elevated Ambient Temperature: If installed in a closed rack assembly, the
operation temperature of the rack environment may be greater than room
ambient. Use care not to exceed the rated maximum ambient temperature
of the appliance.
•
Reduced Air Flow: Installation of the equipment in a rack should be such
that the amount of airfl ow required for safe operation of the equipment is
not compromised.
•
Mechanical Loading: Mounting of the equipment in the rack should be such
that a hazardous condition is not achieved due to uneven mechanical loading.
•
Circuit Overloading: Consideration should be given to the connection
of the equipment to the supply circuit and the effect that overloading of
circuits might have on overcurrent protection and supply wiring. Consider
equipment nameplate ratings for maximum current.
•
Reliable Earthing: Reliable earthing of rack mounted equipment should
be maintained. Pay particular attention to supply connections other than
direct connections to the branch circuit (for example, use of power strips).
Modem Digital 1
sessions/output
Ethernet Digital 1
sessions/output
DSR1021 Switch
Number of servers 8
Analog user 1