Engineering Labels For Dc Power Cords - H3C S12500G-EF Series Installation Manual

Figure 7-11 Example of a label on an optical fiber between the device and the ODF
G 0 1
O D F
•
ODF-G01-01-01-R—The local end of the optical fiber is connected to the optical receiving
terminal on Row 01, Column 01 of the ODF in Row G Column 01 in the equipment room.
•
A01-01-05-05-R—The peer end of the optical fiber is connected to Optical Receiving Interface
5 on Slot 05, Chassis 01 in the cabinet on Row A, Column 01 in the equipment room.

Engineering labels for DC power cords

These labels are affixed to DC power cords that provide power for racks, and the protection
grounding cables including the –48V, PGND, and RTN cables. The labels for DC power cords are
affixed to one side of the identification plates on cable ties.
Table 7-4 Information on labels affixed to DC power cords
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 information about the local end is not necessary.
48V power supplies on the label. Give information for other DC voltages (such as 24V, 60V) 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 must face up, and the text on the labels in the same cabinet
must be in the same direction, as shown in
Figure 7-12 Example of labels on a DC power cord
TO :
A 0 1
B0 8
•
A01/B08––48V2 (loaded cabinet side)—The power cord is –48V2 DC supply, which is from
th
the 8 connector on the second row of –48V bus bar in the cabinet on Row A, and Column 1 in
the equipment room.
0 1 0 1 R
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.
TO :
–
4 8 V 2
Figure 7-12.
–
B0 3
4 8 V 2
7-9
Table 7-4 lists information about two –