Description
Product Overview
The GE IS400TDBTH6A Discrete Input/Output Terminal Board from the Mark VIe Series supports TMR redundancy and mounts via DIN rail or flat panel. It connects to three PDIO I/O packs using D-type connectors and communicates with controllers over Ethernet.
This board handles 24 group-isolated contact inputs with wetting voltages of 24, 48, or 125 V DC. It also provides 12 form-C relay outputs and supports the WROBH1A option board for expanded relay power distribution. Noise suppression circuitry protects against surge and high-frequency interference.
Technical Specifications
| Parameter |
Specification |
| Part Number |
IS400TDBTH6A |
| Series |
Mark VIe |
| Voltage |
24 V DC |
| Current |
10 mA |
| Dimensions |
34 cm × 18 cm × 3 cm |
| Weight |
0.4 kg |
Signal Interface & Mounting
-
Accepts 24 contact inputs with group isolation
-
Provides 12 form-C relay outputs with optional fused power via WROBH1A
-
Includes three PDIO connection points: JR1, JS1, and JT1
-
Mounts on DIN rail or bolts into cabinet using sheet metal carrier
-
Uses two sets of 48 terminal blocks: TB1 for relays, TB2 for inputs
-
Wetting voltage supplied via JE1 pin 1 (positive) and pin 3 (return)
Application & Compatibility
Use the IS400TDBTH6A board in turbine control systems requiring discrete signal management and TMR redundancy. It integrates with PDIO I/O packs and supports dual or triple controller configurations. Compatible with SRLY and STCI terminal layouts for simplified wiring.
Ideal for industrial environments needing reliable contact input processing and relay output control.
