Professional Audio Distribution Processor
Crestron
CNX-PAD8A
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
4
16
6
18
10
20
15
22
13
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 network units, always twist the ends of the incoming
wire and outgoing wire which share a pin on the network connector. After twisting
the ends, tin the twisted connection with solder. Apply solder only to the ends of the
twisted wires. Avoid tinning too far up or the tinned end becomes brittle and breaks.
After tinning the twisted ends, insert the tinned connection into the network
connector and tighten the retaining screw. Repeat the procedure for the other three
network conductors.
Identity Code
Every equipment and user interface within the network requires a unique identity
code (NET ID). These codes are recognized by a two-digit hexadecimal number
from 03 to FE. The NET ID of the unit must match an ID code specified in the
SIMPL Windows program. The NET ID of each CNX-PAD8A has been factory set
to
44
. The NET IDs of multiple CNX-PAD8As in the same system must be unique
and changed from a personal computer (PC) via VisionTools
Pro-e (herein known
as VT Pro-e) or SIMPL Windows.
NOTE:
VT Pro-e is a Windows compatible software package for creating Crestron
touchpanel screen designs.
The method for changing the unit's NET ID is identical regardless of the software
chosen. Complete the following steps to change the NET ID.
1. Attach only one of the CNX-PAD8As to the control system (verify that
the software is running).
2. From the SIMPL Windows or VT Pro-e menu, select
Tools | Viewport
to open the Crestron Viewport.
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Professional Audio Distribution Processor: CNX-PAD8A
Operations Guide – DOC. 8174
Содержание CNX-PAD8A
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