Cheetah 64NEX Digital Video Router
Publication 81-9059-0685-0, Rev. A
March 2011
Proprietary Information of PESA
6-3
6.1.4
+28V Test Points
The test point labeled
+28V
is used to determine by measurement whether +28VDC power is
present (bare metal of the chassis can be used for the ground/negative potential).
6.1.5
Installing the Power Supplies
Install each power supply as follows:
1. Align the metallic support plate of the first power supply vertically with the card guides in
the chassis.
2. Press upward on the power supply latch located on the front bottom of the assembly and
carefully insert the power supply into the chassis until the connectors on the power supply
make contact with the backplane connectors.
3. Firmly, push the power supply unit into the chassis until the power supply latch engages
the corresponding slot in the chassis.
The latch on the power supply acts as a retainer latch and a power ON/OFF
switch for the unit.
3.
Make sure the latch is fully engaged (down and secured/mated into the corresponding slot in
the chassis) to enable (energize) the power supply.
6.1.6
Removing the Power Supplies
To remove a power supply, follow these steps (you may remove power supplies while the
Cheetah system is operational [energized], which is called hot-swapping):
Make sure you will still have the minimum number of power supplies
installed before removing power supplies. The minimum number depends
on your configuration, which is either one or two power supplies. If you
only have one supply installed and you must remove it, de-energize the unit
first.
1. Open the Cheetah front cover.
When the latch on the power supply is moved to the full-upward position,
the power supply is switched off and is freed from the retaining slot in the
chassis.
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