AccuTouch 3000U USB
Controller
product discontinued
December 2006;
suggested replacement
 Specifications
for the 3000U controller (Part
# 608244-000) include:
Electrical
Supply Voltage and Current
-
+5 VDC, nominal
(+4.35 to +5.25 VDC)
-
50 mA, typical at +5
VDC. Average power dissipation is 0.25 W, typical
-
Power is
obtained from 5V supply on the USB connector. No external power supply
is needed.
-
Total noise and ripple requirement must be less than 100mV (p-p) for frequencies below 1MHz, and less than 50mV (p-p) for frequencies above 1MHz.
Interface
-
USB High Speed
-
Plug and play
compatible
Operating Modes
-
AccuTouch SmartSet
protocol
-
Initial/Stream/
Untouch/ Z-axis Enable Modes
Touch Resolution
-
Approximately 4096x4096,
12 bit resolution
Conversion Time
-
Approximately
8.6 ms per coordinate set
Reliability
-
MTBF greater than
250,000 hours per MIL-HDBK-217-F2 using the parts stress calculation method for the ground benign environment with an ambient temperature of 25°C
Environmental
Temperature
-
Operating: 0°C to 65°C
-
Storage: -25°C to 85°C
Humidity
-
Operating: 10% to 90%
RH, noncondensing
-
Storage: 10% to 90%
RH, noncondensing
Operating Altitude
Shock and Vibration
-
ISTA 2A standard for shock
-
Three axis sine wave, 50Hz to 2kHz, 1G, 2 minutes/Octave with dwell on
resonance
ESD
-
Per EN 6100-4-2 1995: Level 4. Contact discharge 8kV, air discharge
15kV for USB and screen connector
Flammability
-
The printed circuit board substrate is rated 94V0. All plastic components,
such as headers and connectors, are also rated 94V0.
-
In addition,
circuitry is protected by Raychem Polyswitches, which are UL
recognized components.
Physical Characteristics
Construction
-
Four-layer surface-mount design with internal ground plane for EMI
suppression
Dimensions
-
Total width:
2.28 inches (57.9 mm)
-
Total length:
3.50 inches (88.9 mm)
-
Total height:
0.65 inches (16.5 mm)
-
All mounting holes are plated through-holes for chassis ground connection.
Refer to the drawings
at the end of this document.
Connectors and Pin Definitions
-
The connector configuration permits the controller to be placed in-line between the touchscreen and a USB hub or host attachment.
USB Output Connector
The USB connector, P2, is a USB Series "B" receptacle as specified
in section 6.5 of the USB specification, version 1.1. The pins are numbered
as shown in Figure 1.
Figure 1. P2, USB Board-Mounted Header
and Cable-Mounted Plug
Table 1. USB Connector Pin Numbers and Signal Names
| P2 pin number |
Signal name |
Standard wire color |
| 1 |
VBUS |
RED |
| 2 |
D- |
WHITE |
| 3 |
D+ |
GREEN |
| 4 |
GND |
BLACK |
| shell |
shield |
drain wire |
Touchscreen Connector
The touchscreen connector, P3, is a
single row by five-position header with 0.025 inch square pins spaced
on 0.100 centers. P3 mates with the receptacle on the AccuTouch touchscreen
cable. The pins are numbered as shown in Figure 2.
Figure 2. P3, AccuTouch Touchscreen Cable-Board Mounted Header and
Cable-Mounted Plug
Table 2. AccuTouch Touchscreen Connector Pin Numbers
and Signal Descriptions
| P3 pin |
Signal name |
Signal function |
| 1 |
H |
Drive signal attached to the touchscreen substrate upper right corner when
viewed from a user's perspective. |
| 2 |
X |
Drive signal attached to the substrate lower right corner |
| 3 |
S |
"Sense" signal attached to the touchscreen coversheet |
| 4 |
Y |
Drive signal attached to the substrate upper left corner |
| 5 |
L |
Drive signal attached to the substrate lower left corner |
LED Diagnostic
Characteristics
The CTR-300000-AT-USB-00 controller has two LED status indicators.
A green LED (D1) indicates controller status as follows:
| LED Blink Rate |
Function |
| Once per second |
Normal condition, untouched
state |
| On continuously |
Touched state |
| Twice per second |
Error detected |
A second LED (D6) indicates USB status as follows:
| LED State |
Function |
| OFF |
Controller is not enumerated on USB |
| ON |
Controller is enumerated on USB, but there is no data transfer |
| Blinking |
USB data transfers between controller and host are occurring |
Agency Approvals
-
Elo controllers are
"CNR/USR" UL Recognized Components for USA and Canada, Category NWGQ2, Information Technology Equipment Including Business Equipment.
-
Elo controllers are TUV Bauart certified as components.
-
The 3000U controller has passed compliance testing under FCC Part 15 Class B limits with good margin.
-
Depending on the application, it may be necessary to pay special attention to system grounding and shielding, and it may be necessary to apply ferrite suppressor beads.
-
Agency
approval certificates for all Elo controllers and touchscreens
(443K PDF)
-
RoHS Declaration of
Compliance (165K PDF)
Drawings
Top View
Thru-Hole Locations
Bottom View
Side View
NOTE: Side view values represent typical dimensions.
 Options
Cable pack (Part # 310900-000) is used to install an AccuTouch 3000U
controller inside the monitor.
USB bulkhead mounting hardware
is not included; you will need two 4x40 pan head screws.
| 
