A Pluggable-Terminal Analog Input Board for Mark VIe Nodes

Swapping a terminal board during a short outage window is a different job when the wiring unplugs instead of unscrewing. That is the appeal of the IS200STAIH2A: it is the STAI Simplex Analog Input terminal board built with a right-angle header that accepts pluggable Euro-style terminal blocks, so the field wiring lifts off as a set. Functionally it is GE Mark VIe distributed I/O termination — 10 analog input channels and 2 analog output channels, served by a single PAIC Analog I/O pack that mounts to the board and links to the controller over Ethernet.

Documented capability, per the Mark VIe I/O literature: inputs accept two-, three-, and four-wire transmitters, externally powered transmitters, and ±5/±10 V dc signals; the board makes 24 V dc available to power transmitters; outputs are 0-20 mA with one loop jumper-configurable to 0-200 mA. Construction is surface-mount, roughly 15.9 x 10.2 cm, rated -30 to +65 °C, carried on a DIN-rail sheet-metal mount or bolted to the panel. Shielded twisted-pair wiring (typically 18 AWG) is the documented practice, with a shield terminal provided beside the blocks and a 15-ohm limit on two-way lead resistance.

Channel-Level Diagnosis Before You Replace Hardware

An analog input that reads wrong has four places to fail: transmitter, wiring, terminal board, pack. The STAI is the least likely of the four, so eliminate the others first:

• Confirm loop power and measure actual loop current at the terminals — a 4-20 mA loop stuck at zero is usually a transmitter or supply problem.
• Compare against a spare channel: land the same loop on an unused input (matching its jumpers) and see whether the reading follows. If it does, the original channel's termination on the board is legitimately suspect.
• Watch for the pack's diagnostics. The I/O pack senses output health across on-board series resistors and raises alarms; it also reads the STAI's ID chip at startup, and a mismatch between the expected and actual board produces a hardware incompatibility fault rather than silent failure.
• If the whole node misbehaves — all channels frozen, node offline — shift attention to the PAIC pack, its power input, and its Ethernet links before touching the terminal board.

Jumper Map: Configuring the STAI Correctly

A replacement board must be jumpered to match the loops it serves, and misplaced jumpers are a classic post-swap gotcha. As documented for the STAI family:

• J1A through J8A select current or voltage input for channels 1-8.
• J1B through J8B set whether each channel's return ties to common or floats.
• J9A and J10A select the input current range (1 mA or 20 mA class) for channels 9-10, with J9B and J10B handling their return configuration.
• J0 sets output 1 for 20 mA or 200 mA service.

Photograph the jumper positions on the outgoing board before removal, and set the incoming board to match — it turns a risky changeout into a routine one.

Suffix Logic: STAI, Then H2A, Then CB

IS200STAIH2ACB reads as platform prefix (IS200), function (STAI — Simplex Analog Input), group (H2A — the pluggable-terminal build of this board), and revision (CB). Order by matching the group exactly; treat the trailing revision letters as the build level to confirm with your supplier — include your label's full string in the request and we will verify before shipping. The GE Speedtronic Part Number Decoder is our reference guide to these segments. One catalog note: IS200-prefix boards are conventionally listed under Mark VI (as in the table below), while the STAI's documented role is in Mark VIe distributed I/O — the prefix reflects the shared board platform, not the rack it serves.

What We Need From You to Quote

Five items close a quote in one exchange: the full part number with revision (IS200STAIH2ACB) or a label photo; the mating PAIC pack number; your system generation and application; quantity with urgency; and the delivery destination. Add any companion boards from the same node — packs, other S-type terminal boards — and we will quote the set together. Our broader stock is in the GE Speedtronic Turbine Control Boards and GE Mark VI IS200 Boards collections.

Factory-Packaged and Ready — Request a Quote

This IS200STAIH2ACB is new surplus, original factory packaged, with the warranty shown below. Submit your Request a Quote and expect our response within 24 hours. Delivery is DDP to any destination worldwide, and we accept purchase orders.

General Information about the Product
Part Number	IS200STAIH2A Mark VI IS200
Description	GE IS200STAIH2A IS200STAIH2ACB DINrail card Mark VI NEW
Condition	newSurplusFactoryPackage Original Factory Packaged. With 1 Year Warranty.