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GE DS200DTBAG1A Contact Input Termination Module Item NO.: 2906989

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Product Name	GE DS200DTBAG1A Contact Input Termination Module
Item NO.	2906989
Weight	0.1 kg = 0.2205 lb = 3.5274 oz
Category	GE
Brand	GE
Creation Time	2026-09-10

GE DS200DTBAG1A Contact Input Termination Module

Mark V LM Contact Inputs

GE DS200DTBAG1A Contact Input Termination Module

The primary contact-input terminal board in a Mark V LM digital core, carrying the first 46 field contact inputs to the TCDA board.

Product Overview

GE DS200DTBAG1A identifies the first functional-revision family of the DTBA Contact Input Termination Module. In Mark V LM digital I/O cores, DTBA is installed at location 6.

The board connects the first 46 contact inputs to TCDA through JQR. J12 receives 125 VDC contact-interrogation power from TCPD, and JY passes that power to the companion DTBB expansion terminal board.

Contact sense can be inverted in the TCDA I/O configuration for fail-safe input behavior. The BJ1 through BJ5 hardware jumpers isolate contact-input groups from 125 VDC for testing.

Technical Specifications

Specification	Technical Data
Brand	GE
Model	DS200DTBAG1A
Product Type	Contact input termination module family
Country of Origin	United States
Control Platform	SPEEDTRONIC Mark V LM
Functional Acronym	DTBA
Digital-Core Location	6
Contact Inputs	First 46 inputs in the digital core
TCDA Interface	JQR
125 VDC Input	J12 from TCPD
Expansion Power Connection	JY to DTBB
Normally Unused Connectors	JQS and JQT
Test-Isolation Jumpers	BJ1 through BJ5
Software Function	Contact-sense inversion in TCDA I/O Configuration
Reference Manual	GEH-6153

Input Termination Function

First 46 contact inputs in the digital core

DTBA is the primary field-termination layer for the first group of Mark V LM contact inputs. JQR carries these signals to TCDA, where the states are conditioned and transferred to the I/O network.

Location 6 is assigned to DTBA.
JQR is the contact-input signal interface to TCDA.
J12 receives the 125 VDC interrogation supply.

Configuration and Test Isolation

Software inversion and five isolation jumpers

Input sense inversion is configured on TCDA rather than on the terminal board. BJ1 through BJ5 isolate contact-input groups from the 125 VDC interrogation supply during defined test work.

Record the original BJ1–BJ5 positions.
Use JY only for the documented DTBB expansion connection.
Apply the exact project I/O configuration after replacement.

Technical Questions

How many contact inputs are terminated by DS200DTBAG1A?

DTBA connects the first 46 contact inputs in its Mark V LM digital core.

Which connector links DS200DTBAG1A to TCDA?

JQR carries the contact-input signals to the TCDA board.

Where does DS200DTBAG1A receive 125 VDC power?

J12 receives the interrogation supply from TCPD.

What does JY do on DS200DTBAG1A?

JY passes the documented 125 VDC supply to the companion DTBB expansion board.

How is fail-safe contact sense configured for DS200DTBAG1A inputs?

The input sense is inverted in the TCDA I/O Configuration, not by a DTBA software setting.

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GE DS200DTBAG1A Contact Input Termination Module Item NO.: 2906989

GE DS200DTBAG1A Contact Input Termination Module

Product Overview

Technical Specifications

Input Termination Function

First 46 contact inputs in the digital core

Configuration and Test Isolation

Software inversion and five isolation jumpers

Technical Questions

Automation Hardware Portfolio

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