GE IS200TSVOH1A IS200TSVOH1AAA | Servo Termination Board

High-Density Servo Signal Termination for Mark VI

The GE IS200TSVOH1A IS200TSVOH1AAA terminates all servo control signals in a compact layout. This termination board belongs to the Mark VI series from General Electric. It interfaces with electro-hydraulic servo valves for turbine control. Therefore, it enables precise governor response during load changes.

Physical Dimensions and Mounting Specifications

This servo termination board measures 22 cm in width, 16 cm in height, and 4 cm in depth. The GE IS200TSVOH1A IS200TSVOH1AAA weighs approximately 0.52 kg, which supports stable panel mounting. Its larger surface area accommodates more terminal blocks. Consequently, you can connect multiple servo valves to a single board.

Connector Layout and Component Configuration

The GE IS200TSVOH1A IS200TSVOH1AAA features three 34-pin ribbon cable headers for rack interface. It also provides eight 5-pin screw terminal blocks for servo valve wiring. This board contains sixteen operational amplifiers for signal buffering. Additionally, it includes ten energy storage capacitors for noise filtering.

Technical Parameter	Specification
Full Model Name	GE IS200TSVOH1A IS200TSVOH1AAA
Manufacturer	General Electric (GE)
Series	Mark VI / Speedtronic
Product Category	Servo Termination Board
Weight	0.52 kg (1.15 lbs)
Dimensions (W x H x D)	220 mm x 160 mm x 40 mm
Ribbon Cable Headers	3 x 34-pin
Servo Terminal Blocks	8 x 5-pin (screw type)
Operational Amplifiers	16 units
Energy Storage Capacitors	10 units (220 µF each)
Total Capacitance	2,200 µF
Servo Output Current	±50 mA per channel
Output Voltage Range	–10 V to +10 V
Number of Servo Channels	8 independent channels
Operating Temperature	–20°C to +65°C

Energy Storage and Signal Buffering Performance

The GE IS200TSVOH1A IS200TSVOH1AAA stores sufficient energy for clean signal output. Its ten capacitors provide 2,200 µF of total capacitance. This storage removes high-frequency noise from the servo command lines. Furthermore, each operational amplifier provides unity gain buffering for signal integrity.

Role Within the Mark VI Speedtronic System

You will typically find the GE IS200TSVOH1A IS200TSVOH1AAA mounted near the turbine hydraulic control panel. It connects to the main rack via three shielded ribbon cables. Moreover, this board supports both single and dual coil servo configurations. Its eight channels control up to eight independent servo valves for steam and gas turbines.

Installation and Servo Wiring Guidelines

Use the GE IS200TSVOH1A IS200TSVOH1AAA as a direct replacement for older TSVO revisions. Always verify the valve coil impedance before connecting any wires. This termination board requires an external ±15 VDC supply for amplifier operation. It needs no configuration jumpers or special tools. Simply secure the board with four mounting screws and connect your shielded servo cables to the 5-pin blocks.