Keterangan

GE DS200DTBAG1A Digital Contact Terminal Board

Configured for discrete contact input termination in the Speedtronic Mark V / Mark V LM control system, the GE DS200DTBAG1A (DS200DTBA Digital Contact Terminal Board) provides direct electrical signal routing between field devices and the digital I/O processing hardware. The board supports up to 46 contact input channels, interfaces with the TCDA processor board for optical isolation, and accepts contact interrogation voltages from 24 V DC to 125 V DC.

Hardware Specifications

Parameter	Specification
Model	DS200DTBAG1A
Brand	GE
Origin	General Electric
Product Type	Digital Contact Terminal Board
Series	Speedtronic Mark V / Mark V LM
Functional Acronym	DTBA
Functional Revision	A (G1A)
Contact Input Capacity	46 digital contact inputs
Input Voltage	24 V DC to 125 V DC
Terminal Blocks	2 screw terminal blocks (TB1, TB2), up to 95 terminal positions
Optical Isolation	Via TCDA Digital I/O processor board
SOE Resolution	1 ms (with TCDA board)
PCB Coating	Normal conformal coating
Connectors	JQR, J12, JY, JQS/T
Operating Temp	-30 deg C to +65 deg C
Weight	1.00 lb

Backplane Communication and Firmware Compatibility

The DS200DTBAG1A functions as a field termination interface rather than an independent processing module. Digital contact states are transferred through the JQR connection to the TCDA Digital I/O processor, where optical isolation and sequence-of-events processing are performed. The J12 connector supplies 125 V DC distribution power, while the JY connector extends the same distribution to an auxiliary DTBB terminal board when system expansion is required. Firmware execution is handled by the associated controller and processor boards; this terminal board does not contain field-upgradable firmware.

Frequently Asked Questions

Q: Does the DS200DTBAG1A support hot swapping while the Mark V system is energized?
A: The available documentation does not specify hot-swap capability. Installation or replacement should be performed with the associated control cabinet de-energized and in accordance with the system maintenance procedure.

Q: How is electrical isolation implemented for digital contact inputs?
A: Contact signals are routed through the terminal board to the TCDA Digital I/O processor board, where optical isolation is provided before signal processing.

Q: Can different field contact voltages be connected to the board?
A: The board supports contact interrogation voltages from 24 V DC to 125 V DC. Voltage selection and wiring should follow the applicable Mark V system configuration and wiring documentation.

Field Installation Guidelines

• Verify the DS200DTBAG1A part number and revision before installation.
• Isolate cabinet power before connecting or disconnecting field wiring.
• Terminate field conductors on TB1 and TB2 using the designated terminal assignments.
• Route input wiring separately from high-power conductors to reduce electrical noise.
• Maintain proper cable shield grounding according to the control cabinet grounding practice, avoiding multiple shield ground points unless specified by the system design.
• Confirm jumper positions before commissioning, particularly when ground isolation is required for troubleshooting.
• Inspect the conformal-coated PCB for contamination or mechanical damage before installation.
• Verify connector engagement for JQR, J12, JY, and JQS/T before energizing the control system.

Spesifikasi

• Merek: General Electric
• 
  :
  

Keuntungan

• Keandalan tinggi di lingkungan industri
  
  
• Mendukung operasi berkelanjutan
• Kompatibel dengan sistem PLC/DCS utama