Elo Touch Solutions

E281-2310 IntelliTouch SmartSet Serial Controller

E281-2310 IntelliTouch SmartSet Serial Controller

Jumper J2: Installed = E281-4002 controller emulation

Diagnostic LED: Green

  • Normal, without touch: Should blink at 1 Hz.
    • (on solid indicates Power-on Self Test failure)
  • Normal, with touch: On solid while touched
    • (on after release: host failed to remove the data)
  • Fast blink (2 or 3/sec):
    • Communications error

Factory Jumper Settings

J0 Out Reserved
J1 Out Reserved
J2 Out No Emulation Mode
J3 Out Reserved

Power Requirements

  • 5 Vdc, nominal (±5%)
  • 140 mA, typical at = 5 Vdc

P2 Connections

Pin Serial Communication Connections
DB9 DB 25
1 Data Carrier Detect (DCD) 1 8
2 Data Set Ready (DSR) 6 6
3 Receive Data (RxD) 2 3
4 Ready To Send (RTS) 7 4
5 Transmit Data (TxD) 3 2
6 Clear To Send (CTS) 8 5
7 Data Terminal Ready (DTR) 4 20
8 N/C 9 22
9 Ground (GND) 5 7
10 Key N/A N/A

P4 Connections

Pin Signal
1 DC+
2 DC- (tied to pin 4)
3 N/C
4 DC- (tied to pin 2)
5 LED Remote
6 Key
7 N/C
8 Chassis Ground
9 - Reset
10 N/C