Elo Touch Solutions

CarrollTouch 4000S Serial Controller

The 4000S controller is RoHS compliant, part # E928494.

4000S Serial and 4000U USB ControllersSupply Voltage and Current

  • +5 VDC, nominal (+4.75 to +5.25 VDC)
  • 120 mA, typical at +5 VDC. Average power dissipation is 0.6 W, typical.
  • Supply must be capable of sourcing 400 mA, minimum.
  • Total noise and ripple requirement must be less than 100 mV (p-p) for all frequencies

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 4000S 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)

Operating Modes

  • Full Infrared SmartSet protocol

Touch Resolution

  • 4096x4096

Conversion Time

  • Approximately 25 ms per coordinate set

Reliability

  • Reliability predictions were performed in accordance with MIL-HDBK-217F Notice 2 and Bellcore TR-NWT-000332 Issue 4. The environment for both predictions was Ground Benign at 35 degrees C. The calculated reliability hours are:
    • MIL-HDBK-217F: 629,693
    • Bellcore: 763,114

Temperature

  • Operating: -20°C to 70°C
  • Storage: -40°C to 85°C

Humidity

  • Operating: 0% to 95% RH, noncondensing
  • Storage: 0% to 95% 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

  • Test pending

Flammability

  • The printed circuit board substrate is rated 94V0. All plastic components, such as headers and connectors, are also rated 94V0.

Construction

  • Four-layer surface-mount design with internal ground plane for EMI suppression

Dimensions

  • Total width: 2.30 inches (58.42 mm), including connectors
  • Total length: 3.30 inches (83.82 mm)
  • Total height: 0.40 inches (10.16 mm)
  • All mounting holes are plated through for chassis ground connection. 

The connector configuration permits the controller to be placed in-line between the touchscreen and serial I/O attachments.

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. 

2500S Controller

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

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

Signal Name DB-9 pin P2 pin Sourced by Signal Function
-DCD 1 1 ctlr "carrier detect", handshake='0' when controller power on
-DSR 6 2 ctlr "data set ready", handshake='0' when controller power on
RXD 2 3 ctlr serial data from controller to host
-RTS 7 4 host "ready to send", handshake='0' when controller may send
TXD 3 5 host serial data from host to controller
-CTS 8 6 ctlr used as "ready to receive", handshake='0' when host may send
-DTR 4 7 host "data terminal ready", handshake='0' when controller may send
RI 9 8 n/u not used
SG 5 9 com signal ground
n/u n/c 10 n/u connector key

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

Table 2. Serial Signal Electrical Characteristics

Parameter Value Applicable Signals 1 EIA-232 Subsec.
Minimum ON state input voltage 2 +3 volts TxD, RTS, DTR 2.1.3
Minimum OFF state input voltage 2 -3 volts TxD, RTS, DTR 2.1.3
DC Load Resistance, receiver 5 kO ± 2 kO TxD, DTR 2.1.4
DC Load Resistance, RTS 1.75 kO ± 500 O RTS 2.1.4
Source Impedance (Power Off) > 300 O DSR, DCD, CTS, RxD 2.1.5
Power-off condition interpretation ON condition RTS, DTR 2.1.5
Output Voltage, Open Circuit 25 volts, max. 3 RxD, DSR, DCD, CTS 2.1.6
Output Voltage into test load 4 >5 volts;
<15 volts 3		 RxD, DSR, DCD, CTS 2.1.6
Short Circuit Current <100 mA RxD, DSR, DCD, CTS 2.1.6
Transition Characteristics per EIA-232-E RxD, DSR, DCD, CTS 2.1.7

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

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 2 for pin number locations. Signal connections are shown in Table 3.

2500S Controller

Figure 2. Pin Diagram for Power Connector, P4, as Viewed from Connector Mating Surfaces

Table 3. Power Connector, P4, Pins and Signal Names

Signal name P4 pin Signal function
+Regulated Pwr 1 +5 volts DC +/- 5%
Pwr Com 2 Supply voltage common
reserved 3 no connection allowed
Pwr Com 4 Supply voltage common
LED Remote (1) 5  
n/c 6 key location
n/c 7  
Frame ground 8  
-Reset 9 Open = normal operation
short to Pwr com = hardware reset.
reserved 10 no connection allowed

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

A green LED 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
  • 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)
  • Look up product statement of compliance by part number

4000S Controller

Figure 3. Top View

  • Power cable, flying leads (P/N E084869)
  • Communications cable, 2x5 to DB9, 30 inches (P/N E795087)
  • Flex cable, connects touch frame to controller (P/N A47654-000)