Crestron C2N-TTVFM, Руководство по эксплуатации

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Crestron C2N-TTVFM TV & FM Radio Tuner
Operations Guide - DOC. 6266A TV & FM Radio Tuner: C2N-TTVFM
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consideration. If Cresnet units are to be daisy-chained on the run, the power factor of
each unit to be daisy-chained must be added together to determine the power factor
of the entire chain. If the unit is a home-run from a Crestron system power supply
network port, the power factor of that unit is the power factor of the entire run. The
length of the run in feet and the power factor of the run should be used in the
resistance equation below 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 following table.
Wire Gauge Values
RESISTANCE WIRE GAUGE
4 16
6
18
10 20
15
22
13 Doubled CAT5
8.7 Tripled CAT5
NOTE: All Cresnet 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.
Identity Code
Every equipment and user interface within the network requires a unique identity
code (Net ID). These codes are two-digit hexadecimal numbers from 03 to FE. The
Net ID of each unit must match an ID code specified in the SIMPL Windows
program. Refer to “Setting the Net ID in Device Settings” on page 15 for details of
the SIMPL Windows procedure.
Refer to the note on page 32 for
a definition of Viewport. The Net ID of the TV/FM Tuner has been factory set to 47 . The Net IDs of multiple
TV/FM Tuners in the same system must be unique. Net IDs are changed from a
personal computer (PC) via the Crestron Viewport.
NOTE : For detailed information on establishing communication between the PC and
control system, refer to “Communication Settings” on page 32. If communication
cannot be established, refer to the “Troubleshooting Communications” section in the
respective Operations Guide for the control system.