Honeywell TC-ODK161 – 16‑Channel Digital Output Module for Reliable Discrete Control

The Honeywell TC-ODK161 is a 16‑point digital output module designed for Honeywell distributed control systems, typically used to drive solenoids, interposing relays, indicator lamps, and small actuators. From my experience, this module slots cleanly into the Honeywell I/O rack with the appropriate termination assembly, giving you predictable response times and straightforward diagnostics. Plants usually deploy it in compressor skids, burner start/stop sequences, conveyor logic, and interlock signaling where deterministic output switching really matters.

Order Placement Process and Guarantees

• Warranty: 365 days
• Delivery: 1 week if in stock; no more than one month at the latest
• Payment: 50% advance payment; full payment prior to delivery
• Express options: FedEx, UPS, DHL

Key Features

• Sixteen discrete outputs – Suited for high-density DO applications, reducing rack space and wiring per point.
• 24 Vdc field-side switching – Typically wired as sourcing outputs via the matching termination assembly, simplifying cabinet power distribution.
• Channel diagnostics – You might notice status indication and controller feedback that make point checks and loop testing faster during commissioning.
• Deterministic response – In many cases you’ll see sub‑tens‑of‑milliseconds actuation, which is helpful for interlocks and step sequences.
• Honeywell rack compatibility – Designed to plug into the Honeywell I/O backplane and work with the proper IOTA/termination hardware for the ODK series.
• Service-friendly – Field techs appreciate the straightforward swap process; online replacement may be supported depending on the rack and site procedures.

Technical Specifications

Related or Supporting Products

• Honeywell TC-IDK161 – 16‑channel digital input counterpart for discrete sensing.
• Honeywell TC-ODJ081 – 8‑channel digital output, typically with higher isolation per point for noisy loads.
• Termination assemblies (IOTA/TA) – Use the matching TA for ODK‑series modules to ensure correct sourcing wiring and field power distribution.
• Honeywell controllers (C200/C300 families) – The module communicates over the system backplane; verify rack and controller compatibility before ordering.

A maintenance lead at a utilities plant told us they swapped TC‑ODK161 modules during a turnaround and shaved hours off loop checks thanks to clear channel status and a clean drop‑in fit with the existing termination assembly. That seems to be the typical experience when replacing like‑for‑like Honeywell cards.

Installation & Maintenance

• Cabinet & environment – Mount in a rated enclosure with adequate ventilation; keep dust and corrosives under control. Maintain clearance for airflow and service access.
• Wiring – Use the specified TA/IOTA. Field power is typically 24 Vdc; fuse each load group. Follow Honeywell polarity and commons grouping to avoid nuisance trips.
• Grounding – Bond cabinet ground and follow plant grounding practice; group commons as recommended in the TA documentation.
• Safety – De‑energize field power before moving wires. Observe ESD precautions when handling the module.
• Routine checks – Periodically exercise outputs, inspect terminals for loosening, and verify indicator operation. Firmware updates, where applicable, should be applied per site change control.
• Spares strategy – Keeping at least one spare per cabinet or per 100 points typically minimizes downtime during unplanned maintenance.

Quality & Certifications

• Certifications – Honeywell I/O modules are commonly CE and UL marked; RoHS compliance depends on build and year. We can confirm the exact markings on the unit supplied.
• Manufacturer’s warranty – New units follow Honeywell’s standard warranty policy for the product line.
• Our coverage – 365‑day warranty as stated above, with functional testing prior to dispatch in most cases.