Installation Manual
Quidway S8500 Series Routing Switches Appendix A Engineering Labels for Cables
Huawei Technologies Proprietary
A-16
A.5.2 Labels for the Trunk Cable that Connects the Device and the DDF
I. Meaning of the label
Table A-7 shows the information on both sides of the labels affixed to the trunk cable
that connects the device and the DDF.
Table A-7 Information on labels affixed to the trunk cable between the device and the
DDF
Content Meaning Example
MN: cabinet number For example, A01
B: frame number
Numbered in bottom-up order with two
digits, for example, 01
C: physical slot
number
Numbered in top-down and left-right
order with two digits, for example, 01
D: cable number
Numbered in top-down and left-right
order with two digits, for example, 05
MN-B-C-D-R/T
R: optical receiving
interface
T: optical transmitting
interface
MN: row number and
column number of the
DDF
Numbered in the same rule as that of the
cabinets, for example, G01 is the DDF in
Row G and Column 01.
B: row number of the
terminal
C: column number of
the terminal
Range from 01 to 99, foe example:
01-01.
DDF-MN-B-C-
D/R/T
D: direction A or B
R: optical receiving
interface
T: optical transmitting
interface
There is such a mark in DDF:
A: indicating the DDF terminals are
connected to the optical network
equipment
B: indicating the DDF terminals are
connected to the switching equipment
II. Example of the label
Figure A-15 shows the label on the trunk cable between the device and the DDF: