Labels for the Optical Fibers Connecting Devices

Table 1 lists information on both sides of the labels affixed to the optical fibers that connect two devices.

**Table 1** Information on labels affixed to the fibers between two devices
Content	Meaning	Example
MN-B-C-D-R/T	MN: cabinet number	M: The cabinet rows from front to back are numbered from A to Z. N: The cabinet columns from left to right are numbered from 01 to 99. For example, A01 is the cabinet in row A and column 01.
	B: chassis number	Numbered in bottom-up order with two digits, for example, 01.
	C: physical slot number	Numbered in top-down and left-right order starting from 01. For example, 01 is the first slot at the top left of the chassis.
	D: optical interface number.	Numbered in top-down and left-right order, consistent with the port sequence number on the device.
	R: Receiving interface T: optical transmitting interface	-

Figure 1 shows a sample label on an optical fiber.

Figure 1 Sample label on an optical fiber between two devices

The meaning of the label is listed in Figure 1.

"A01-01-05-01-R" indicates that the local end of the optical fiber is connected to the optical receiving interface 01 in slot 5, chassis 01 in the cabinet in row A, column 01 in the machine room.
"G01-01-01-01-T" indicates that the opposite end of the optical fiber is connected with optical transmitting interface 01 in slot 01, chassis 01 in the cabinet in row G, column 01 in the machine room.