Crestron FT-TSC600 FlipTop, Руководство по эксплуатации и установке

Страница: 43 / 48

Crestron FT-TSC600 FlipTop Touch Screen Control System
Operations & Installation Guide – DOC. 7593A FlipTop Touch Screen Control System: FT-TSC600 • 39
Cable Length Equation
L = Length of run (or chain) in feet
R = 6 Ohms (Crestron Certified Wire: 18 AWG (0.75 mm ))
or 1.6 Ohms (Cresnet HP: 12 AWG (4 mm ))
P = Cresnet power usage of entire run (or chain)
2
2
L < 40,000
R x P
Where:
Make sure the cable length value is less than the value calculated on the right side of
the equation. For example, a Cresnet run using 18 AWG Crestron Certified Wire and
drawing 20 watts should not have a length of run more than 333 feet (101 meters). If
Cresnet HP is used for the same run, its length could extend to 1250 feet (381
meters).
NOTE: All Crestron certified Cresnet wiring must consist of two twisted pairs. One
twisted pair is the 24 and G pair and the other twisted pair is the Y and Z pair.
Strip and Tin Wire 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.
Add Hubs Use of a Cresnet Hub/Repeater (CNXHUB) is advised whenever the number of
Cresnet devices on a network exceeds 20 or when the combined total length of
Cresnet cable exceeds 3000 feet (914 meters).
Reference Documents
All documents mentioned in this guide are available at www.crestron.com/manuals .
List of Related Reference Documents
DOCUMENT TITLE
3-Series Control Systems Reference Guide
Crestron e-Control Reference Guide
Further Inquiries
To locate specific information or resolve questions after reviewing this guide,
contact Crestron's True Blue Support at 1-888-CRESTRON [1-888-273-7876] or, for
assistance within a particular geographic region, refer to the listing of Crestron
worldwide offices at www.crestron.com/offices .
To post a question about Crestron products, log onto Crestron’s Online Help at
www.crestron.com/onlinehelp . First-time users must establish a user account to fully
benefit from all available features.
Future Updates
As Crestron improves functions, adds new features, and extends the capabilities of
the FT-TSC600, additional information may be made available as manual updates.
These updates are solely electronic and serve as intermediary supplements prior to
the release of a complete technical documentation revision.