Installation Manual
1. Router Introduction
21
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1.9.
Air Passage of QSR-2920 Series Router
The air flow direction of QSR-2920 series router chassis is left in and right out, and the diagram
is as follows:
Figure 1-5 Air passage of QSR-2920 series router
Keep the air passage of the route unblocked during the operation.
Avoid placing the device with left outlet adjacently above and below the
router.
1.10.
Optional Power Module of QSR-2920 Series Router
The back panel of QSR-2920 series router provides one or two power inputs. QSR-2920-04-AC
is equipped with one power supply, QSR-2920-04-AC-AC is equipped with two power supplies,
and the default configuration is 50W power supply; QSR-2920-14-AC is equipped with one
power supply, QSR-2920-14-AC-AC is equipped with two power supplies, and the default
configuration is 75W power supply; QSR-2920-14P-AC is equipped with one power supply, and
the default configuration is 200W; QSR-2920-24-AC is equipped with one power supply, QSR-
2920-24-AC-AC is equipped with two power supplies, and the default configuration is 100W
power supply. It supports two power supplies to work in parallel, which is used to back up the
system power supply. The power model and function description are as follows:
Table 1-3 Power modules supported by QSR-2920
Model
Name
Remarks
AD50-
1S005B02
50W
ACDC
power
Output 12V system power supply, 2 power
supplies of the same model can be used for
hot backup of system power supply
AD75-
1S005B03
75WACDC
power
Output 12V system power supply, 2 power
supplies of the same model can be used for
hot backup of system power supply
AD100-
1S005A02
100WACDC
power
Output 12V system power supply, 2 power
supplies of the same model can be used for
hot backup of system power supply
