Features:
- Field wiring can be landed once and routed to the required PCAA processing channels.
- The same TCAT concept supports one, two, or three connected core analog modules.
- The catalog covers the TCAT card and base, so service work should not treat it as an unidentified loose board.
The terminal assembly sits between project field wiring and the PCAA modules that perform conversion, processing, communication, and control functions.
Correct operation depends on the installed cable set, channel fanout, jumpers, grounding, and the relationship between shared and module-dedicated signals.
A controlled replacement preserves the original drawing references and verifies every participating processing channel before the system returns to automatic operation.
Apter Power can provide a sales quotation for the General Electric IS230TCATH1A Mark VIe TCAT core analog terminal-board and base assembly.
General Electric IS230TCATH1A Mark VIe TCAT core analog terminal-board and base assembly 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.
How the TCAT assembly distributes signals
- Shared inputs: TCAT-routed points can be presented to multiple PCAA modules for redundant processing.
- Dedicated points: Signals wired directly to an individual PCAA remain outside the common fanout path and must be recorded separately.
- Channel identity: Terminal numbers, signal names, polarity, and engineering ranges should match the project drawings and controller database.
- Shield continuity: Cable shields and adjacent grounding provisions must follow the cabinet design to limit analog noise.
- Loop-power boundary: Confirm which external or JGPA supply energizes each transmitter before changing terminations.
Simplex, dual, and TMR signal fanout
- Simplex arrangement: One PCAA receives the required shared signals when no redundant processing path is specified.
- Dual arrangement: Two module connections must use the assigned cable paths and matching configuration.
- TMR arrangement: Three PCAA channels should show consistent wiring, point ownership, and diagnostic health.
- Fanout review: Verify that only the intended signals are distributed across redundant modules.
- Maintenance boundary: Isolate the affected processing channel without disturbing healthy paths whenever the approved procedure permits.
Cabling and grounding
- Interconnect pairs: Route both 68-pin cables for each PCAA according to the cabinet drawing and connector designation.
- Strain relief: Support the cable bundle so connector weight does not load the terminal-board headers.
- Separation: Keep low-level analog wiring away from high-current switching conductors and noisy power circuits.
- Shield landing: Terminate shields at the specified JGPA or cabinet grounding point without creating unintended loops.
- Connector inspection: Check latches, keying, bent contacts, contamination, and seating before power is applied.
Commissioning checks
- Drawing reconciliation: Compare actual terminals, jumpers, cables, and PCAA assignments with the latest approved wiring package.
- Point-to-point test: Inject representative signals and confirm they reach every intended processing channel with correct polarity.
- Redundancy comparison: Review channel-to-channel differences before enabling alarms, logic, or closed-loop control.
- Loop-power test: Measure field supply and transmitter current under operating load rather than assuming the auxiliary board is included.
- Final inspection: Record connector torque, shield continuity, diagnostic status, and restored cabinet barriers.