Features:
- Terminates 30 relay outputs from the TCRA board in location five of a digital core.
- Supports dry-contact or powered-solenoid use for outputs 31 through 46.
- Provides an ignition-transformer option for outputs 47 and 48.
DS200DTBDG1A is a contact output expansion termination module used in the Q11, Q21, and Q51 Mark V LM digital cores. It is an output board, not a contact-input termination module.
JS1 through JS8 carry relay signals from TCRA. J8 supplies the separate solenoid-power path from TCPD.
Paired P/M jumpers configure outputs 31-46, while J19 and J20 participate in the optional ignition-transformer path for outputs 47 and 48.
For installations retaining the General Electric DS200DTBDG1A Contact Output Expansion Termination Module, Apter Power offers post-EOL purchasing and documentation support.
General Electric DS200DTBDG1A Contact Output Expansion Termination Module Manuals, Datasheets, Links
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
- Relay interface: DS200DTBDG1A connects to the 30 relays on the TCRA board in location five of the Q11, Q21, or Q51 core. JS1 through JS8 divide those relay signals into defined cable groups.
- Grouped symptom: A symptom affecting several outputs in one group can therefore follow a common JS connector even when other DTBD outputs operate normally.
- Command-versus-power test: The TCRA relay command and the field-power path should be tested separately because the relay state alone does not prove that solenoid voltage is present.
- Configured outputs: Sixteen DTBD outputs can be configured for solenoid service. P1/M1 through P16/M16 correspond to outputs 31 through 46.
- Paired jumpers: Each Pn/Mn pair must be both installed or both removed. Mixed positions do not represent a valid powered-output or dry-contact configuration.
- Solenoid supply: J8 receives the solenoid supply from TCPD in the power-distribution core. A missing J8 feed can disable powered outputs while dry-contact relay behavior remains visible.
- Ignition option: Contact outputs 47 and 48 can be used for ignition-transformer circuits when J19 and J20 are connected and the factory-installed wire jumpers are removed.
- Core limitation: J19/J20 connections are used in Q11 and Q51, but not in Q21. The core location and project drawing must therefore agree before this option is enabled.
- Inactive-output check: If outputs 47 or 48 are inactive, check the connector arrangement and wire-jumper state as a single configuration rather than testing only the relay.
- Failure pattern: One failed field device points toward its terminal, paired jumper, conductor, and load. Several failed outputs in the same group point more strongly toward a JS cable or the shared J8 power path.
- Wrong-device response: When the wrong device operates, compare the TCRA relay assignment, JS connector position, DTBD terminal number, and field conductor before issuing another command.
- Two-part proof: A complete check proves both parts of the circuit: the relay signal arriving from TCRA and the correct field voltage or dry-contact action leaving DS200DTBDG1A.