Manufactured for General Electric Mark V turbine control systems, the DS200TCCBG1A is a GE TC2000 analog input‑output circuit board fitted with an 80196 microprocessor alongside several PROM modules. The hardware integrates a side‑mounted status LED plus dual 50‑pin interfaces designated JCC and JDD. In addition, five 34‑pin header connectors are populated on the PCB, with reference designators listed below:

JAA

JBB

JAT

JAS

JAR

Given the large number of ribbon‑wire interfaces on the DS200TCCBG1A, technicians are advised to document cabling positions prior to unplugging any flat cables. Proper recording preserves signal routing and accelerates system restoration during board swap‑out activities. Miswiring may remain undetected until drive reboot, manifesting as failed inbound or outbound signal transmission. Should mismatched connections occur, power down the drive unit and re‑establish all ribbon‑cable terminations. When detaching harnesses, never exert pulling force directly on the flat ribbon body; improper force may tear internal fine copper conductors away from connector pins.

Each factory‑fitted connector on the DS200TCCBG1A Common Extended Analog I/O Board serves distinct signal‑handling roles within standard Mark V Series configurations. Every physical port is defined by its silkscreen part identifier, pin count, and the type of control signal it is engineered to carry. Key interfaces featured on the DS200TCCBG1A hardware include:

‑ 2PL: Power distribution interface for the TCPS board

‑ 3PL: Data bus link connecting STCA, TCCA and TCCB circuit assemblies

‑ JHH: Receives 4‑20 mA / 0‑1 mA analog input signals originating from the TBCB terminal board

‑ JII: Receives RTD sensor input signals fed over the TBCB terminal board

‑ JMP: Carries potential‑transformer and current‑transformer signals sourced from the TCEB board

‑ JKK: Multi‑purpose signal port

‑ JTEST: Dedicated test access port

‑ TCQPL: Specialized power‑related connection header