IntelliTouch/SecureTouch 2500Uz USB
Controller
product discontinued November 2005; suggested replacement
Specifications for the 2500Uz controller (Part
# 859778-000) include:
Electrical
Supply Voltage and Current
-
+5 VDC, nominal (+4.75V to +5.25V)
or
+12VDC, nominal (+10.8V to +13.2V)
-
50 mA, typical at +5
VDC. Average power dissipation is 0.25 W, typical
-
Supply must be capable of sourcing 100mA, minimum.
-
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 (Full Speed)
-
Plug and play
compatible
Operating Modes
-
IntelliTouch SmartSet
protocol
-
Initial/Stream/
Untouch/ Z-axis Enable Modes
Touch Resolution
-
4096x4096, size independent, 255 levels of Z
(pressure)
Conversion Time
-
Approximately 10.4 ms per coordinate set.
Reliability
-
MTBF greater than 345,000 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
-
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.
Flammability
-
The printed circuit board substrate is rated 94V0. All plastic components, such a headers and connectors, are also rated 94V0.
Physical Characteristics
Construction
-
Four-layer surface-mount design with internal ground plane for EMI
suppression
Dimensions
-
Width: 2.36 inches (59.94 mm), including connectors
-
Length: 3.51 inches
(89.03 mm), including connectors
-
Height: 0.61 inches
(15.44 mm)
-
All mounting holes are plated through 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 dual row by six position header
with 0.025 inch square pins spaced on 0.100 centers. P3 mates with the
Berg Mini-Latch receptacle on the IntelliTouch touchscreen cable. The
pins are numbered as shown in Figure 2. The withdrawal force exceeds
3.9 lbs.

Figure 2. Pin Diagram for Touchscreen
Connector, P3, as Viewed from Connector
Mating Surfaces
Table 2. IntelliTouch Touchscreen Connector Pin Numbers
and Signal Descriptions
| Signal name |
P3 pin |
Signal function |
| Chassis |
1 |
frame ground for cable shield |
| none |
2 |
connector key |
| Y rcv + |
3 |
|
| Y xmt + |
4 |
|
| Y rcv - |
5 |
|
| Y xmt - |
6 |
analog ground |
| analog gnd |
7 |
analog ground |
| X xmt - |
8 |
analog ground |
| X rcv - |
9 |
|
| X xmt + |
10 |
|
| X rcv + |
11 |
|
| none |
12 |
connector key |
Power Connector, P4
The power connector, P4, is a 2 row by five-position header with 0.025-inch pins on 0.100 centers. The header is compatible with insulation displacement cable
(IDC) connectors such as Berg series 71600, series 71602, series 66900, and series 66902, Molex style 40312, Amp series 746285 and series 746288 receptacles. The header is also compatible with crimp termination, discrete wire receptacles and housings including Berg Mini-Latch housings and Mini-PV receptacles, Molex series 70450 connectors, and the Amp AMPMODU Mod. IV connector family. Pin numbering schemes for discrete wire connectors differ between manufacturers.
Refer to Figure 3 for pin number locations. Signal connections
are shown in Table 3.

Figure 3. P4, Power Connector Board-Mounted
Header and Cable-Mounted Plug
Table 3. Power Connector, P4, Pins and Signal Descriptions
| Signal name |
P4 pin |
Signal function |
| +Regulated Pwr |
1 |
+5 volts DC +/- 5% |
| Pwr Com |
2 |
Supply voltage common |
| +Regulated
Pwr |
3 |
+12
volts DC +/- 10% |
| Pwr Com |
4 |
Supply voltage common |
| n/c |
5 |
|
| n/c |
6 |
key location |
| n/c |
7 |
|
| Frame ground |
8 |
|
| n/c |
9 |
|
| reserved |
10 |
no connection allowed |
LED Diagnostic
Characteristics
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.
-
Elo controllers have been tested for compliance with FCC Part 15 Class B limits*.
-
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
(366K PDF)
Drawings
|