Huawei OptiX RTN 980 Quick Installation Manual page 24

6
Installing IF Jumpers
a
Installing an IF Jumper
The ISM6, ISV3, IF1, IFU2, ISU2,
ISX2, and IFX2 boards provide the
IF port.
CAUTION
Before installing an IF jumper on a single-channel IF board, turn off the ODU switch on the IF board.
If an RG-8U IF cable or a 1/2-inch IF cable is used, an IF jumper is required to connect the IF cable and
IDU; if a 5D IF cable is used, the 5D IF cable is directly connected to the IDU.
b
Connecting the IF Jumper Directly to the IF Cable
NOTE
When connecting an IF jumper to an IF cable, you must test the connectivity of the IF cable.
On the equipment configured with IF 1+1 protection, the IF cable of the active ODU must be connected to
the IF jumper of the active IF board, and the IF cable of the standby ODU must be connected to the IF
jumper of the standby IF board.
If the XPIC IF board is used, the IF cable connected to the vertically polarized ODU must be connected to
the IF jumper on the IF board that processes vertically polarized waves, and the IF cable connected to the
horizontally polarized ODU must be connected to the IF jumper of the IF board that processes horizontally
polarized waves.
IF jumper
IF cable
21
ISU2 board
ODU switch