Engineering Labels For Dc Power Cables - HP A8800 Installation Manual

A01-01-05-05-R—The peer end of the optical fiber is connected to Optical Receiving Interface 5
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on Slot 05, Chassis 01 in the cabinet on Row A, Column 01 in the equipment room.

Engineering labels for DC power cables

These labels are affixed to DC cables that provide power for racks, and the protection grounding
cables including the –48V, PGND, and BGND cables. The labels for DC power cables are affixed to
one side of the identification plates on cable ties.
Table 58 Information on labels affixed to DC power cables
Content
MN(BC)-–48Vn
MN(BC)-RTN
MN(BC)-PGND
The label only carries location information about the peer equipment, control cabinet, or distribution
box, while the information of the local end is not necessary.
48V power supplies on the label. The information for other DC voltages (such as 24V, 60V) should be
given in similar methods.
Make sure labels are affixed in the correct direction. After the cable ties are bundled onto the cable,
the identification plates with the labels should face up, and the text on the labels in the same cabinet
should be in the same direction, as shown in
Figure 71 Example of labels on a DC power cable
A01/B08––48V2 (loaded cabinet side)—The cable is –48V2 DC supply, which is from the 8
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connecter 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 cable is –48V2 DC supply, which is from the loaded
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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.
Meaning
• Loaded cabinet side—Only MN is used to identify the cabinet number
(row number and column number in the equipment room).
• Power cabinet side—MN identifies the row and column number of the
power distribution equipment like the control cabinet and distribution
box. BC identifies the row and column number of the –48V connector (if
there is no row number or column number, or the connector can be
identified without them, BC can be omitted). RTN and PGND have no
row and column number for identification.
• n—Power port number in down-top and left-right order, in the range of 1
to 3.
Figure 71.
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Table 58 lists the information of two –
th