Technical Specifications for Electrotap T201A Expander

Physical Attributes

• Dimensions: 6in (154mm) x 1 1/4in (32mm) x 1 1/4in (32mm)
• Solder Mask Color: Green
• Temperature Range: -30C to 75C (-21F to 160F)
• LED power indicator light

Ordering Information

• Standard Version (includes 6-foot RJ11 cable) - T201A
• Custom Scaling Version (Each of the four input channels will scale input signals to custom specifications on a made-to-order basis. Such scaling is fixed, i.e. not variable after production. Includes 6-foot RJ11 cable) - T201B

Electrical Specifications

• Voltage Source: 0-5 Volts
• Minimum Current Source: depends on application.
• Voltage Returned by Sensor: depends on application.
• All inputs fully buffered prior to sending to output.
• Inputs may be scaled by adding resistors to the circuit.

Cable Specifications

• Electrotap P/N: CAB-RJ11-6
• Standard 6 foot (approximately 2 meter), 6 conductor RJ11/Telephone cable.
• Color: White
• RJ11 connector layout (teabox end):
  - Pin 1: 5 Volts
  - Pin 2: Sensor 1
  - Pin 3: Sensor 2
  - Pin 4: Sensor 3
  - Pin 5: Sensor 4
  - Pin 6: Ground
• RJ11 connector layout (sensor end):
  - Pin 1: Ground
  - Pin 2: Button S1
  - Pin 3: Button S2
  - Pin 4: Button S3
  - Pin 5: Button S4
  - Pin 6: 5 Volts

Application Examples

• Adding 4 more Combo-Jack inputs to the Teabox.
• For any application where it is desireable to use an RJ11 line to split into 4 full inputs (combo jacks or 3-pin header).
• For any application where a high-impedance sensor may be used. The buffering in this unit converts all inputs to low-impedance.
• Fixed (non-variable) scaling with the T201B for times that a known input range will always need to be scaled the same way.