Specifications

Two-Way RF Transceiver Crestron STRFGWX

Setup

Network Wiring

NOTE: If making category 5 connections to the Cresnet peripherals, refer to the

latest revision of the Cresnet Mini Network CAT 5 Interconnect Drawing (Doc.

5819). This document can be obtained from the Downloads page (CABLES and

MANUAL Libraries) of Crestron’s website (www.crestron.com). Search for

CAT5.PDF. New users are required to register in order to obtain access to the site.

NOTE: Review the latest revision of the Network Modular Cable Requirements

(Doc. 5682). This document can be obtained from the Downloads page (CABLES

and MANUAL Libraries) of Crestron’s website (www.crestron.com). Search for

MODULAR.PDF.

When calculating the wire gauge for a particular network run, the length of the run

and the power factor of each network unit to be connected must be taken into

consideration. If network units are to be daisy-chained on the run, the power factor

of each network unit to be daisy-chained must be added together to determine the

power factor of the entire chain. The length of the run in feet and the power factor of

the run should be used in the following resistance equation to calculate the value on

the right side of the equation.

Resistance Equation

R = Resistance (refer to table below).

L = Length of run (or chain) in feet.

PF = Power factor of entire run (or chain).

R <

L x PF

40,000

Where:

The required wire gauge should be chosen such that the resistance value is less than

the value calculated in the resistance equation. Refer to the table after this paragraph.

Wire Gauge Values

RESISTANCE (R) WIRE GAUGE

Doubled CAT5

8.7

Tripled CAT5

NOTE: All network wiring must consist of two twisted-pairs. One twisted pair is

the +24V conductor and the GND conductor and the other twisted pair is the Y

conductor and the Z conductor.

NOTE: When daisy-chaining Cresnet units, strip the ends of the wires carefully to

avoid nicking the conductors. Twist together the ends of the wires that share a pin on

the network connector, and tin the twisted connection. Apply solder only to the ends

of the twisted wires. Avoid tinning too far up the wires or the end becomes brittle.

Insert the tinned connection into the Cresnet connector and tighten the retaining

screw. Repeat the procedure for the other three conductors.

6 • Two-Way RF Transceiver: STRFGWX Operations Guide - DOC. 5811A