
DS200CTBAG1ADD is a C-Core Analog Termination Module manufactured and designed by General Electric as part of the Mark V LM Series used in Aeroderivative Control Systems. The Termination Module (CTBA) terminal board is located in the core. The CTBA terminal board lands the 4–20 mA output signals, the 4–20 mA input signals, and the shaft voltage and shaft current signals. The IONET connection to the STCA board and the COREBUS connection to the QTBA board on the core are also located on the CTBA board. The 24 V DC power for diagnostics comes from the TCPD board in the core. A bypass relay that allows the COREBUS to continue to communicate if power is lost to the CTBA terminal board is located on the CTBA terminal board.
DS200CTBAG1ADD Technical Specifications
| Part Number: | DS200CTBAG1ADD |
| Manufacturer: | General Electric |
| Series: | Mark V LM |
| Board rating: | 125 V DC |
| Product Type: | C-Core Analog Termination Module |
| Impedance to the ground: | 75 Ohms |
| Overspeed Trip: | J28/J29 |
| Connectors: | J7, JK, JL, JW, JX1 |
| Redundancy: | Dual |
| Power Requirements: | +5 V dc, 6 A |
| Operating temperature: | -30 to +65°C |
CTBA Connection

- 8PL – Carries the IONET signals to the STCA board in the core.
- JAA – Carries the 4–20 mA outputs from the TCCA board in the core.
- JAI – Used for the COREBUS connection; if not used, then a termination resistor should be attached.
- JAJ – Used for the COREBUS connection; if not used, then a termination resistor should be attached.
- JBB – Carries 4–20 mA inputs and the shaft voltage and current signals to the TCCA board in the core.
- JEE – Communicates the COREBUS signals with the STCA board in the core.
- JPD – Carries the 24V DC power signal from the TCPD board in the core.
- JX – Communicates the IONET signals with the TCDA board in the core.
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