IS200TBAIH1C GE Mark VI Speedtronic Analog Input Board

GE IS200TBAIH1C Mark VI Analog Input Terminal Board

The GE IS200TBAIH1C, also cataloged as the IS200TBAI Analog Input Terminal Board, operates as a dedicated hardware component for field signal termination and noise attenuation within GE Mark VI and Mark VIe Speedtronic turbine control platforms. The board routes 24 analog input channels—including 4-20 mA current loops, 0-10 VDC inputs, and RTD temperature sensors—to control processors via three redundant cable connectors. Equipped with 48 silver-plated screw terminals organized in two 24-point blocks, the unit executes passive signal conditioning and 1500 VDC channel-to-bus galvanic isolation across heavy industrial automation networks.

Suffix Breakdown & Model Matrix

Hardware Specifications

Backplane Bus Latency and Deterministic Network Throughput

The GE IS200TBAIH1C integrates directly with system I/O modules to facilitate high-speed data transmission across the Mark VI control backplane. High-bandwidth communication velocity prevents signal transport latencies, allowing the control processor to digitize analog process values within deterministic cycle windows. Integrated noise filtration circuits suppress high-frequency electromagnetic interference before digitizing process inputs, while hardware jumpers allow signal conditioning configuration across distinct voltage, current, and temperature transmitter loops without degrading backplane communication timing.

Frequently Asked Questions

Q: How are field wiring shields anchored to prevent noise ingress on 4-20 mA loops?

A: Technicians must terminate overall cable shields to the cabinet ground bar rather than floating them at the terminal board to ensure optimum channel-to-bus galvanic isolation.

Q: What purpose do the two metal jumper pins serve on the circuit board?

A: The metal jumper pins configure hardware loop power routing and input signal attenuation levels for individual channel groups prior to system commissioning.

Q: Can this terminal board remain powered during field loop maintenance?

A: Field wiring can be disconnected individually from the 48 screw terminals, but technicians must verify system redundancy settings to prevent process interruption on active channels.

Field Installation Guidelines

Observe the following field engineering practices during mechanical installation and electrical hookup:

1. DIN-Rail Mounting & Orientation: Align the 6U board carrier with the enclosure DIN-rail, applying uniform inward force until the mounting clips lock firmly onto the rail structure.
2. Terminal Wiring Procedure: Strip field cable conductors to specified lengths and insert them into terminal points 1 through 48, torqueing the silver screw clamps to avoid conductor strain.
3. Redundant Cable Attachment: Connect the three vertical interface ports to the primary, secondary, and tertiary I/O modules using shielded cable assemblies, ensuring hardware locking screws are tightened.
4. Shield Grounding Discipline: Maintain dedicated signal separation by routing 4-20 mA cables away from AC power lines and grounding cable drain wires at a single enclosure earth point.
5. Jumper Position Verification: Confirm the position of the 2 metal jumper pins matches the required signal type (voltage, 4-20 mA, or RTD) for each channel group prior to applying +5 VDC system power.