IS230TBAIH3C - Analog Input/Output Terminal Board

IS230TBAIH3C - Analog Input/Output Terminal Board IS230TBAIH3C - Analog Input/Output Terminal Board

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Part Number: IS230TBAIH3C
Manufacturer: General Electric
Series: Mark VI
Product Type: Analog Input/Output Terminal Board
Number of channels: 12
Input span, transmitters: 1-5 V dc
Technology: Surface Mount
Size: 10.16 cm wide x 33.02 cm
Common Mode Voltage Range: ±5 V
Operating temperature: 30 to 65 °C
No.of Analog Voltage Inputs: 6
Repair: 3-7 Day
Weight: 2.00 lbs
Availability: In Stock
Country of Origin: United States
Manual: GEH-6421M


IS230TBAIH3C is an Analog Input/Output Terminal Board manufactured and designed by General Electric as part of the VI Series used in GE Speedtronic Gas Turbine Control Systems. The Analog Input/Output (TBAI) terminal board supports 10 analog inputs and 2 outputs. The 10 analog inputs accommodate two-wire, three-wire, four-wire, or externally powered transmitters. The analog outputs can be set up for 0-20 mA or 0- 200 mA current. Inputs and outputs have noise suppression circuitry to protect against surge and high-frequency noise. TBAI has three DC-37 pin connectors provided on TBAI for connection to the I/O processors. Simplex applications are supported using a single connector (JR1). TMR applications are supported using all three connectors. In TMR applications, the input signals are fanned to the three connectors for the R, S, and T controls. TMR outputs combine the current of the three connected output drivers and determine the total current with a measuring shunt. TBAI then presents the total current signal to the I/O processors for regulation to the commanded setpoint.


Connect the input and output wires directly to two I/O terminal blocks mounted on the terminal board. Each block is held down with two screws and has 24 terminals accepting up to #12 AWG wires. A shield terminal attachment point is located adjacent to each terminal block. TBAI can accommodate the following analog I/O types:

  • Analog input, two-wire transmitter
  • Analog input, three-wire transmitter
  • Analog input, four-wire transmitter
  • Analog input, externally powered transmitter
  • Analog input, voltage ±5 V, ±10 V dc
  • Analog output, 0-20 mA
  • Analog output, 0-200 mA


TBAI provides a 24 V DC power source for all the transducers. The inputs can be configured as current or voltage inputs using jumpers (J#A and J#B). One of the two analog output circuits is 4-20 mA and the other can be configured as 4-20 mA or 0- 200 mA. The following table displays the analog I/O capacity of TBAI. Each 24 V dc power output is rated to deliver 21 mA continuously and is protected against operation into a short circuit. Transmitters/transducers can be powered by the 24 V dc source in the control system or can be independently powered. Jumper JO selects the type of current output. Diagnostics monitor each output and a suicide relay in the I/O controller disconnects the corresponding output if a fault cannot be cleared by a command from the processor.

WOC has the largest stock of GE Speedtronic gas turbine control system replacement parts. We can also repair your faulty boards and supply unused and rebuilt boards backed up with a warranty. Our team of experts is available round the clock to support your OEM needs. Our team of experts at WOC is happy to assist you with any of your automation requirements. For pricing and availability on any parts and repairs, kindly get in touch with our team by phone or email.


What types of signals can an Analog Input/Output Terminal Board handle?

Analog Input/Output Terminal Boards can typically handle various types of analog signals, including voltage, current, temperature, pressure, and other physical quantities.

What types of transmitters can the terminal board accommodate for analog inputs?

The terminal board offers remarkable flexibility and can accommodate different types of transmitters, including two-wire, three-wire, four-wire, and externally powered transmitters. This compatibility allows users to seamlessly integrate a wide range of sensors and transmitters, making the terminal board suitable for diverse measurement needs.

Can the analog outputs on the terminal board be customized to specific current ranges?

Yes, the analog outputs on the terminal board are highly configurable. Users have the convenience of adjusting the output to either 0-20 mA or 0-200 mA current ranges. This reconfigurability enables the board to adapt to specific system requirements or industry standards, offering precise and accurate control over the analog output signals.