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IntelliTouch/SecureTouch 2500Sz Serial Controller

product discontinued November 2005; suggested replacement

Specifications for the 2500Sz controller (Part # F20786-000) include:

• Electrical
• Environmental
• Physical Characteristics
• Jumper Settings
• LED Diagnostic Characteristics
• Agency Approvals
• Drawings

Electrical

Supply Voltage and Current

• +5 VDC, nominal (+4.75V to +5.25V)
  or
  +12VDC, nominal (+10.8V to +13.2V)
• 60 mA, typical at +5 VDC. Average power dissipation is 0.3 W, typical.
• Supply must be capable of sourcing 100 mA, minimum.
• Total noise and ripple requirement must be less than 100 mV (p-p) for frequencies below 1 MHz, and less than 50 mV (p-p) for frequencies above 1 MHz.

Interface

• EIA 232E (Serial RS-232), DCE configuration. 8 Data Bits, 1 Stop Bit, No Parity, Full Duplex.
• Hardware handshaking: RTS/CTS.
• DSR is pulled HIGH (>+3V) by the 2500Sz when connected and powered. DTR can be asserted by the host to interrupt the flow of data from the controller.
• Note that if the application does not monitor CTS, then an interval of approximately 5 seconds should be inserted between the issuance of a reset command and any other command.

Baud Rate

• 9600 (default) and 19200

Operating Modes

• Full IntelliTouch SmartSet or E281A-4002 protocols, jumper selectable
• 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 300,000 hours per MIL-HDBK-217-F2 using the parts stress calculation method for 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

• 10,000 feet

Shock and Vibration

• Three axis sine wave, 50 Hz to 2kHz, 1 G, 2 minutes/Octave with dwell on resonances

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 as 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: 3.30 inches (83.82 mm)
• Height: 0.40 inches (10.16 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 serial I/O attachments.

Serial connector, P2, and signal descriptions

The serial I/O connector, P2, is a dual 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 1 for pin number locations. When the mating IDC receptacle is cabled to an IDC DB-9 connector, the interface assumes a DCE configuration as described in ANSI/EIA/TIA 232-E. 

Figure 1. Pin Diagram for Serial Connector, P2, as Viewed from Connector Mating Surfaces

Table 1. Serial Connector, P2, Signal Names and Functions

Signal electrical characteristics are given in Table 2. These specifications comply with ANSI/EIA/TIA 232-E.

Table 2. Serial Signal Electrical Characteristics

¹ Signals defined in Table 1.
² Measured with respect to circuit SG, Signal Ground
³ Absolute magnitude
⁴ Output voltage measured over the entire range of test load from 3000 ohms to 7000 ohms

Touchscreen connector, P3, and signal descriptions

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 3. Touchscreen Connector, P3, Pins and Signal Names

Power connector, P4 

The power connector, P4, is a dual 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 4.

Figure 3. Pin Diagram for Power Connector, P4, as Viewed from Connector Mating Surfaces

Table 4. Power Connector, P4, Pins and Signal Names

¹ Source impedance is 500 ohms to Vcc. Current drive available for typical LED is 6mA.

Jumper Settings

Table 5. Jumper Locations and Function If Installed

The 2500Sz is shipped with a single jumper fitted to not enable either J1 or J2. Consult the drawings later in this document for the position of the jumpers.

LED Diagnostic Characteristics

A green LED indicates controller status as follows:

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 (443K PDF)

Drawings

• Dimensional drawing: MS500351 Rev A (138K PDF)
• CAD drawings available upon request