H3C S12500-X, Руководство по установке

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• A01/B08––48V2 (loaded cabinet side) —The power cord is –48V2 DC supply, which is from the 8 th
connector on the second row of –48V bus bar in the cabinet on Row A, and Column 1 in the
equipment room.
• B03––48V2 (distribution box side) —The power cord is –48V2 DC supply, which is from the loaded
cabinet on Row B, Column 03 in the equipment room.
In the power distribution box (or the first power cabinet of a row in the transmission equipment room),
every terminal block on the –48V connector bar has a numeric identification. For example, in the above
label of "A01/B08--48V2", "08" (or sometimes "8") is the numeric identification of the terminal block.
PGND and RTN are two copper bars, on which the terminal blocks are short-circuited, so which terminal
is connected makes no difference. You only need to give the row and column numbers of the power
distribution box, instead of giving the specific serial number of the terminal block on the copper bar. For
example, if the label on the loaded cabinet side is "A01-RTN", it means that the power cord is an RTN
that connects RTN copper bar in the power distribution box on Row A, Column 01 in the equipment room.
Give information on the labels for PGND cables in the similar way.
Engineering labels for AC power cords
These labels are affixed to the AC cables that provide power for cabinets and protection grounding
cables, including POWER, RTN, and PGND cables. The 220 VAC cables and related PGND and RTN
cables are covered with insulating sheath, so the labels only need to contain "AC" and the cabinet
number. The labels for AC power cords are affixed to one side of the identification plates on cable ties.
Table 77 Information on labels affixed to AC power cords
Content Meaning
MN-AC
MN: Rack number (row number and column number in the equipment room) or the location of the
socket where the power is led in.
The location of the socket is marked according to onsite situation. If the sockets can be identified
by row number and column number, they can be numbered following the same rule for the rack
number. Otherwise, specify the detailed locations to avoid confusing with other sockets.
The label only carries location information about the peer equipment and the power socket, while
information about the local end is not necessary. Make sure labels are affixed in the correct direction.
After the cable ties are bundled onto the cable, the identification plates with the labels must face up, and
the text on the labels in the same cabinet must be in the same direction, as shown in
Table 77Figure 88 :
Figure 88 Example of labels on an AC power cord
•
A01-AC (loaded cabinet side) —The power cord is connected to the socket of Row A and Column 01
in the equipment room.