GE IS200STAIH1ABB — Analog Input Terminal Board
Mark VI/Mark VIe gas turbine control system specific, Simplex configuration, 16 channel analog input.

core parameters
Project specifications
Part number IS200STAIH1ABB
Series Mark VI/Mark VIe
Type Simplex Analog Input Terminal Board
16 channels of analog input (4~20mA/0~20mA/0~10V, etc., configurable)
Pairing I/O package IS220PAICH1A/IS220PAICH1B
Power supply RBUS backplane power supply (28V DC)
Communication IONet (100Mbps Ethernet), EGD protocol
Isolation between channels, 250V
Working temperature -30 ℃~+65 ℃ (Mark VIe can reach 70 ℃)
Installation method: DIN rail, supports hot swapping
Certified IEC 60945/IACS E10 for use in hazardous areas (HazLoc certification)
Weight approximately 0.45 kg

Naming decoding
Field Meaning
IS200 Mark VIe I/O Series
STAI Simplex Terminal Analog Input (Single Redundant Analog Input Terminal Board)
H1 16 channels (H2=8 channels)
A Basic Version
BB Revised Version (Different from AAA/ABA/GEA)
S (Simplex) ≠ 1 channel, instead of a single redundant configuration, it is actually 16 channels.
Comparison: DTAI → Duplex, TTAI → Triple

Terminal allocation (key)
According to the GEH-6725R manual:

Signal positive terminal (+) negative terminal (-)
STAI Signal 1 TB1.45 TB1.46 (Return 1)
STAI Signal 2 TB1.47 TB1.48 (Return 2)
… … …
STAI Signal 16 TB1.77 TB1.78 (Return 16)
Each channel has an independent circuit and supports the connection of two-wire/four wire sensors.

Typical application scenarios
Scene monitoring signal
Gas turbine exhaust temperature, bearing temperature, lubricating oil pressure
Steam turbine steam pressure, valve position feedback, condensate flow rate
Generator (EX2100) voltage/current feedback, excitation signal
Process control flow, pressure, liquid level, etc. 4-20mA transmitters

Version compatibility (important) ⚠️）
Version compatibility
IS200STAIH1AAA ✅ Interchangeable (most common)
IS200STAIH1ABA ✅ Basic compatibility, confirm firmware version
IS200STAIH1ABB ✅ What you have in your hand, the current mainstream version
IS200STAIH1GEA ⚠️ Pin assignments may be different, it is not recommended to replace them directly
IS200STAIH2A ⚠️ Only 8 channels, with the same physical size but half the number of channels