Honeywell 8C‑TCNTA1 is a coated I/O Termination Assembly (IOTA) for Experion C300/Series 8 controllers. Supports non-redundant 6″ or redundant 12″ config, 0–60 °C, galvanic isolation, hot-swap, FTE & I/O‑Link ports.

Key Specifications

• Model / P/N: 8C‑TCNTA1 (C300 Controller I/O Termination Assembly – coated) 

• Form Factor: Coated IOTA; supports 6″ (152 mm, non-redundant) or 12″ (304 mm, redundant) configurations 

• Function: Provides field wiring interface, FTE address switches, I/O‑Link connectors, redundant/private communication paths and hot‑swap capability 

• System Compatibility: Works with Experion C300 and Series 8 DCS platforms 

• I/O Links: Dual redundant I/O‑Link ports supporting Series 8 I/O modules (up to 40 modules per link) 

• FTE Ports: Dual 100 Mbps Fault‑Tolerant Ethernet uplinks for controller networking 

• Environmental Rating:

  • Operating: 0 °C to 60 °C

  • Storage: –40 °C to 85 °C

  • Relative Humidity: 5 %–95 % non-condensing 

• Power: Powered via the controller (24 V I/O Link supplies) 

• Certifications & Construction: G3 conformal coating to ANSI/ISA‑S71.04‑1985; galvanic isolation in IOTA 

• Dimensions & Weight:

  • 6″ non-redundant: approximate IOTA height 220 mm × width 120 mm

  • Weight ~0.2 kg