Harmonic NSG 9108, Hardware Installation

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20 Cabling the NSG
CHAPTER 2
2. Attach the chassis to the computer rack as follows:
Front - Fasten the front holders to the rack.
Back - Fasten the L-shaped holders to the rack.
Cabling the NSG
Connecting cables to the NSG is straightforward. The NSG GbE input
ports, QAM-RF or ASI output ports, and Ethernet ports are clearly marked
on the NSG back panel. See
“Back Panel” on page 12 for placement.
Connecting the GbE Port
To connect the GbE port to the Content server use either of the
following:
■
Multimode or single-mode optic fiber with an LC connector. The LC
connector plugs into an SFP receptacle and accommodates two
fibers, one for transmission and the other for reception.
■
Copper cable with an RJ-45 connector. The RJ-45 connector plugs
into a copper SFP receptacle.
The NSG supports two SFP modules for channel redundancy. However,
when using copper SFP, automatic channel redundancy is activated only
when unplugging the SFP from the current active port.
To connect the fiber/cable to the NSG:
1. Insert the SFP modules into the receptacles labeled GbE 1 and GbE 2
at the back of the NSG.
2. Insert the LC/RJ-45 plugs into the SFP module.
3. Connect the NSG to a switch or other NSG as appropriate for your
network configuration.
The following figures show a basic connection between an NSG and a
switch. The first figure refers to a connection with optic fibers and the
second with copper cables: