IS230TAISH2C | GE | Mark VIe Simplex Analog Input Terminal Board

Product Overview

The GE IS230TAISH2C operates as a high-density analog input terminal board within the General Electric Mark VIe Speedtronic control ecosystem. This simplex structural card interfaces field transmitters directly with the main control processor network via an attached analog I/O pack. It accommodates up to 10 analog inputs, accepting standard 4-20 mA current loops, ±5 V DC, and ±10 V DC voltage inputs. The terminal board routes raw process variables from pressure transmitters, flow meters, and level sensors, filtering electrical fluctuations to deliver stable process data to your turbine or balance-of-plant automation controls.

We distribute this vital component exclusively as 100% brand new, original factory-sealed stock to guarantee clean material conductivity and flawless signal integrity inside your turbine control panels.

Technical Specifications

The IS230TAISH2C consolidates high-density barrier terminal blocks, localized filter networks, and plug-and-play connector ports onto a single rugged circuit board assembly. The table below outlines the core electrical, mechanical, and physical parameters:

Engineering Advantages

• High-Density Channel Layout: The structural card maximizes spatial efficiency by arranging 10 analog paths onto a narrow backplate footprint. This layout minimizes horizontal space usage within your control panel, letting you organize multi-transmitter loops without building expansion terminal panels.

• Transient Surge and Electromagnetic Filtering: Passive resistor-capacitor (RC) networks line each input track to block high-frequency electromagnetic interference (EMI) and cross-channel noise. This layout stops transient voltage spikes from surrounding switchgear or motor drives from corrupting your critical governor or fuel control algorithms.

• Onboard Loop Power Safeguards: The board provides dedicated 24 V DC power distribution to feed active field transmitters. If a field technician accidentally shorts a transmitter wire during loop troubleshooting, the built-in current-limiting circuit isolates that single channel immediately, preserving the power rails of the remaining 9 operational tracks.

• Direct I/O Pack Mechanical Mating: The board layout features a pre-aligned 37-pin D-sub connector and heavy-duty grounding standoffs. This geometry allows standard GE analog I/O packs (such as the PAIC series) to plug directly onto the board body, eliminating panel jumper wires and shortening maintenance exchange windows.

FAQs

• What specific upgrade path does the 'H2C' suffix version offer over older 'H1A' variants?

  The "H2C" revision utilizes a modified high-density terminal strip layout with heavy-duty barrier blocks that accept wider-gauge field wiring. It preserves drop-in physical placement compatibility, letting you replace older "TAIS" iterations without updating your existing cabinet wiring files or system software parameters.

• Q1: Can I hot-swap the analog I/O pack mounted to this terminal board while under power?

  A1: Yes. The hardware design allows you to unbolt and replace a faulted PAIC or related I/O pack from the IS230TAISH2C board while live without disconnecting the field loop wiring or dropping master panel power, provided you follow standard plant safety protocols.

• Q2: Does this board support the connection of three-wire and four-wire active transmitters?

  A2: Yes. The multi-terminal layout for each channel provides distinct terminal pins for 24 V DC power supply, return signals, and common ground paths. This lets you wire self-powered four-wire instruments or loop-powered two-wire sensors to the exact same block.

• Q3: How does the system communicate an open-circuit fault on a specific input loop?

  A3: The attached I/O pack senses the loop current through the IS230TAISH2C resistors. If a field wire breaks and the current drops below 2 mA, the local logic triggers an immediate open-circuit diagnostic alarm flag, broadcasting the exact channel location to the ControlST interface.