DM4270 – Installation Guide
DM4270 Installation
204.4331.03 - October/2019
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Figure 29 – Inserting the Cooling Module in the DM4270 48XS+6CX
4.7
E
QUIPMENT
P
OWER
S
UPPLY
4.7.1
Connecting to the PSU 400
Both DM4270 24XS+2CX and DM4270 48XS+6CX equipment support the PSU 400
power supplies, however, due to the equipment’s cooling direction, the equipment’s
power supplies are different. Below is a table with the explanation:
Product
PSU Model
Cooling Direction
DM4270 24XS+2CX
PSU 400 AC-B
Entering the PSU panel
PSU 400 DC-B
DM4270 48XS+6CX
PSU 400 DC-F
Exiting the PSU panel
PSU 400 DC-F
Table 16 – Description of the PSU 400 power supplies for each DM4270 model
The use of power supplies with different cooling directions is not recommended,
because it affects the equipment’s circulation of internal and external air.
The PSU 400 power supplies can be hot swapped. To connect a PSU to the equipment,
align the PSU’s mechanical base on the equipment’s base and insert the board into the
slot until the panel touches the equipment’s panel.
PSU 400 AC has a latch that makes a characteristic click when it is fully inserted, thus
ensuring connection and securing.
For the PSU 400 DC, it is necessary to screw the knurled screw in order to ensure the
correct securing of the power supply.
If the slot to be used is protected by a blank panel, remove it beforehand.
It is recommended that you use a screwdriver on the knurled screw to ensure the
complete securing of the PSU 400 DC.
