Product Overview
IS230TCATH1A is a TCAT core analog terminal-board model for a Mark VIe core-analog signal path. The TCAT function adds field I/O terminals to the associated PCAA core analog module and supports signal fanning to one or three PCAA modules.
The core-analog terminal-board function accommodates 4–20 mA, seismic, LVDT, and magnetic pulse-rate field signals. Its terminal and cable arrangement must remain aligned with the associated PCAA modules and controller network path.
Technical Data
| Technical item | IS230TCATH1A |
|---|---|
| Brand | GE |
| Product type | TCAT core analog terminal board |
| Country / region | United States |
| 4–20 mA input paths | 24 |
| Seismic input paths | 12 |
| LVDT windings | 12 |
| Magnetic pulse-rate inputs | 2 |
| Analog outputs | Three 4–20 mA hardware-voted outputs |
| 24 V dc outputs | 12 on TCAT; 12 additional outputs on adjacent JGPA |
| Field terminals | 120 pluggable Euro-style box terminals |
| PCAA cable paths | Paired 68-pin cables for R, S, or T PCAA connections |
| Operating temperature | −30 to +65 °C |
Compatibility
The board must remain paired with its documented PCAA cable positions; electronic cable IDs help confirm the R, S or T connection. Preserve the insulating carrier, metal back base, shield terminations and cable identity because mechanical fit alone does not prove the analog path is compatible.
The recorded R, S or T cable position and electronic cable ID are compatibility evidence for the PCAA connection. Retain the insulating carrier, back base and shield-termination record during service so the physical installation continues to match the signal design.
Signal Monitoring
The board combines 4–20 mA inputs, seismic inputs, LVDT windings, hardware-voted outputs and 24 VDC/shield connections. Trace every issue from field terminal through its assigned PCAA path; do not infer the function from connector location alone.
When a signal is suspect, trace its field terminal, shield and assigned PCAA route before changing a board. The assembly carries several analog signal functions, so a connector position by itself is not a reliable diagnostic identifier.
Product FAQ
Why are the PCAA cable IDs important for IS230TCATH1A?
They confirm the intended R, S or T terminal-board connection.
How should a IS230TCATH1A 4–20 mA issue be traced?
Follow the documented field terminal, shield and assigned PCAA path.
Can a IS230TCATH1A connector position identify the field signal type?
No; use the terminal assignment because analog functions share the assembly.
What must remain unchanged when replacing IS230TCATH1A?
Carrier, back base, cable identity, shield termination and recorded terminal grouping.
How are IS230TCATH1A LVDT and seismic paths protected from a wiring mix-up?
Verify the specific documented field terminal before reconnecting each conductor.
When should IS230TCATH1A 24 VDC auxiliary paths be checked?
When a field device or associated shield/auxiliary connection is missing its expected service.
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