User's Manual

PN 8100-40 Help Hot Line (U.S. only): 1-800-530-9960 9-7
620004-0 Rev. B
Installing the Main Hub
Connecting the MMF cables
Before connecting the MMF cables, confirm that the optical loss does not exceed
3 dB optical.
If fiber distribution panels are used, confirm that the total optical loss of fiber cable,
from the Main Hub through distribution panels and patch cords to the Expansion
Hub, does not exceed 3 dB optical.
Connect all MMF cables (two per port) to the MMF ST female optical connectors
(labeled
DOWN and UP) on the Main Hub front panel. Use any available Main Hub
port.
To clean the fiber ports:
Use compressed air to blow dust out of each fiber port before you insert the ST opti-
cal connector. Note that compressed air should not leave any residue as this will con-
taminate the fiber port.
To clean the fiber connectors:
Be sure that the MMF cable ST optical connectors are clean and free of dust or oils. If
the fiber connector front face is not free of dust or oils, follow the manufacturer’s rec-
ommendations for cleaning it.
To connect the MMF cables:
The MMF cable is labeled with either
1 or 2, or is color-coded. This differentiates the
connectors for proper connection between the Main Hub and Expansion Hubs.
If the fiber jumper is labeled with
1 or 2:
1. Connect 1 to UP on Main Hub.
2. Connect 2 to DOWN on Main Hub.
3. Record which cable number you connected to UP and DOWN.
This information is needed when connecting the other end of the MMF cable to
the Expansion Hub ports.
If the fiber jumper is color-coded (for example, “blue” or “red”):
1. Connect “blue” to UP on Main Hub.
2. Connect “red” to DOWN on Main Hub.
3. Record which cable color you connected to UP and DOWN.
This information is needed when connecting the other end of the MMF cable to
the Expansion Hub ports.