Huawei OptiX PTN Series Quick Installation Manual page 27

6 Installing/Routing Network Cables (GE Electrical Module Scenario)
Overhead Cabling Underfloor Cabling
Network Cable
24
CAUTION
Among three adjacent interfaces,
installing an optical module on an
interface between two GE electrical
interfaces is not supported.
NOTE
When a network cable is routed,
use cable ties to bundle the
network cable onto the cable
bridges of the mounting ears on
both sides of the subrack.