IS200DTBBH1A - Contact Input Expansion Termination Module

IS200DTBBH1A - Contact Input Expansion Termination Module IS200DTBBH1A - Contact Input Expansion Termination Module

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Part Number: IS200DTBBH1A
Manufacturer: General Electric
Series: Mark VIe
Product Type: Contact Input Expansion Termination Module
Number of inputs: 6
Number of outputs: 2
Technology: Surface Mount
Analog output current: 0-20 mA
Operating temperature: -30 to 65°C
Size: 23.8 cm high x 8.6 cm wide
Repair: 3-7 Day
Availability: In Stock
Weight: 2lbs
Country of Origin: United States
Manual: GEH-6153


IS200DTBBH1A is a Contact Input Expansion Termination Module manufactured and designed by General Electric as part of the Mark VIe Series used in GE Distributed Control Systems. The Contac Input Termination Module (DTBB) is situated in Q11, Q21, and Q51. In the same digital core, DTBB connects the final 46 contact inputs to TCDA. To enable failsafe contact input functionality, the inputs can be adjusted in the TCDA IO Configuration to invert the contact sense.


  • JRR - Connects the contact inputs to the TCDA board.
  • JY - Receives 125 V dc power from the DTBA board.
  • JRS/T - Typically not used.

The hardware document in Appendix B and the signal flow diagrams in Appendix D have more specific information about connectors on this terminal board.


BJ1 through BJ5 - Isolates the contact inputs for the test (from the 125 V dc).


DTBB terminal boards have jumpers that can be used to isolate field grounds by disconnecting the interrogation voltage. They are connected in groups of eight contact inputs. These jumpers should only be changed while the turbine is not running. Each contact input is optically isolated on the TCDA board, which is in Location 1 of the digital I/O core.

WOC has the largest stock of GE Distributed Control System Replacement Parts. We can also repair your faulty boards. WORLD OF CONTROLS can also supply unused and rebuilt backed-up with a warranty. Our team of experts is available round the clock to support your OEM needs. Our team of experts at WOC is happy to assist you with any of your automation requirements. For pricing and availability on any parts and repairs, kindly get in touch with our team by phone or email.


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Parts are placed in antistatic packets and securely packed in ESD boxes cushioned with ESD Foam designed to safeguard electrical components.

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