AMX AXD-CP4, Instruction Manual

Page: 13 / 66

Installation
9
4" Color Touch Panels
Wiring the Touch Panel
The CP4/PB touch panels use a mini 4-pin (male) AXlink connector for both power and data; it is
located at the rear of the panel, as shown in FIG. 11. This same figure shows the DB-9
communication port.
Preparing captive wires
You will need a wire stripper and flat-blade screwdriver to prepare and connect the captive wires.
1. Strip 0.25 inch of wire insulation off all wires.
2. Insert each wire into the appropriate opening on the connector according to the wiring
diagrams and connector types described in this section.
3. Turn the flat-blade screws clockwise to secure the wire in the connector. Do not over-torque
the screws; doing so can bend the seating pin and damage the connector.
Wiring guidelines
The touch panels require 12 VDC power to operate properly. The touch panel can use either a
PS(N)2.8 (if the power is being supplied only to the touch panel) or a PS(N)6.5 power supply (if the
power is being routed through the touch panel to power another device). The Central Controller
supplies power via the AXlink cable or external 12 VDC power supply. The maximum wiring
distance between the Central Controller and touch panel is determined by power consumption,
supplied voltage, and the wire gauge used for the cable. The table below lists wire sizes and
maximum lengths allowable between the touch panel and Central Controller. The maximum wiring
lengths for using AXlink power are based on a minimum of 13.5 volts available at the Central
Controller’s power supply. Refer to the Specifications section on page 1 for more information.
FIG. 11 Rear views of the AXD and AXT touch panels
4-pin AXlink connector
DB-9 data connector
AXD-CP4/PB (Rear view)
AXT-CP4/PB (Rear view)
4-pin AXlink
DB-9 data
connector
connector
Do not connect power to the touch panel until wiring is complete. If you are using a
12 VDC power supply, apply power to the touch panel only after installation is
complete.
Wiring Guidelines at 320 mA
Wire Size Maximum Wiring Length
18 AWG 366.78 feet (111.80 m)
20 AWG 232.05 feet (70.73 m)
22 AWG 144.68 feet (44.10 m)
24 AWG 91.20 feet (27.80 m)