User's Manual

Draft

28 RT System 2 v2.0.0 Deployment Guide R00.e

3. Backhaul

Backhaul Components

Before the Central Software System can communicate with the LIU, you must set

up the backhaul.

Ensure that the LIU is grounded. Attach a ground wire to the case, and to a nail

that is driven into the ground.

The ground wire is illustrated in the following figure:

3.2.1.2 Battery and Power Supply

Power is supplied to the LIU components by way of a 12 V DC battery or power

supply.

3.2.1.3 Cables

The following cables are used in the backhaul:

 LIU to Battery (60-0034)

 Ethernet Cable, 30 ft (65-0036)

 Ethernet Cable, 60 ft (60-0037)

 Ethernet Cable, 120 ft (60-0038)

 Cable, LIU-to-PC (60-0039)

 Fiber Optic Cable

NOTE

See “D. LED Indicators” on page 91 for an explanation of the LED status

and error conditions.

CAUTION

Attach the LIU ground wire and the Surge Protector ground wire to the

same nail.

Figure 3–5 LIU

Ground

TIP

The backhaul power requirements vary depending on the hardware in

use and period of use. For example, you may be using one or two

radios. Supply enough power to ensure there is enough power for the

entire duration of the time you are using the backhaul.