Installation Instructions

Installation and Commissioning Guide - R2.0

• UV-rated plenum cable (Option 2). This option uses a single UV-rated plenum fiber cable to

connect directly to the site equipment interface without the use of conduit or a demarcation

box. Use Option 2 when the site engineering plan specifies that the IFU fiber cable will be

installed within building heating, ventilation and air conditioning (HVAC) ducts

(see Figure 1-1 B).

Demarcation Box Option (Option 3)

A demarcation box connects two outdoor IFU fiber cable assemblies with a single indoor fiber

cable that connects to the site equipment. This option can support lengthy cable runs. Jumper

cables at a fiber patch panel interconnect two IFUs on the same rooftop. Figure 1-2 shows this

connection option.

Implementation

Triton Network Systems recommends using a demarcation box only for those installations where

the distance between the IFU and the site equipment interface exceeds the maximum length of

the longest available Triton Network Systems outdoor fiber cable assembly. Otherwise, the direct

IFU-to-site equipment connection option is preferred, due to its lower implementation costs and

superior performance characteristics. Figure 1-3 provides a flowchart to assist in selecting the

appropriate fiber cabling option for any IFU installation site.

Figure 1-3: Fiber Cable Option Selection Flowchart

NOTE: Only plenum-rated cables should be installed within building HVAC ducts.

Plenum-rated cables are less likely to spread poisonous gas should a fire occur within the

ducting.

Start

IFU-to-SE

Cable Run > Std.

TNS Outdoor Cable

Length?

Installing Fiber

Cable in HVAC

Duct?

Select Demarcation

Box Option

Customer Fiber

Cable

Select Single

Riser-Rated Fiber

Cable Option

Select Single

Plenum-Rated Fiber

Cable Option

Install Selected

Option

NoYes

Yes