he Honeywell CC-TDOB11, also cataloged as the CC-TDOB11 Digital Output Termination Assembly, operates as a dedicated hardware component for 24 VDC discrete switching and power routing within Experion Series C DCS platforms. It provides direct physical execution by terminating non-redundant digital output channel wiring over a compact 6-inch chassis frame to interface directly with actuators, relays, and field indicator circuits.
Hardware Specifications
Parameter
Specification
Model
CC-TDOB11
Brand
Honeywell
Origin
USA
Weight
1.10 lbs (0.50 Kg)
Dimensions
6 in (Length)
Operating Temp
0 to 60 deg C
Power Consumption
Passive backplane power routing
Signal Voltage
24 VDC
Redundancy
Non-Redundant (Single IOTA Configuration)
System Integration
Experion Series C Carrier Chassis
Channel Isolation and Power Routing Performance
Engineered with robust channel-to-channel isolation parameters, the Honeywell CC-TDOB11 protects internal backplane logic from field-side voltage transients and ground potential variations. The 24 VDC distribution paths feature integrated transient suppression circuit topology, mitigating inductive kickback spikes generated by field solenoid valves and interlock coils. This ensures clean signal execution and low electromagnetic interference across adjacent 4-20 mA HART loop protocol and digital communication lines within the DCS enclosure.
Frequently Asked Questions
Q: Can the CC-TDOB11 termination assembly be used in a redundant I/O module configuration?
A: No, the CC-TDOB11 is a 6-inch non-redundant (Non/R) IOTA designed specifically to interface with a single digital output module on the Experion Series C carrier.
Q: What is the primary purpose of the internal suppression circuits on the 24 VDC channels?
A: The suppression paths absorb inductive energy transients caused by switching field loads, preventing voltage spikes from propagating back to the control system backplane.
Field Installation Guidelines
Align the 6-inch CC-TDOB11 IOTA onto the vertical DIN or carrier mounting channel inside the cabinet enclosure.
Fasten the ground lug directly to the cabinet main protective earth (PE) bus using a short, low-impedance grounding strap.
Wire the 24 VDC field output lines to the screw compression terminals, keeping wire strip lengths uniform to avoid bare conductor exposure.
Separate field signal wiring from high-voltage power conduits, maintaining at least 50 mm clearance throughout the wiring trunk.
Align the companion digital output module with the base socket header and press firmly until both side latches snap into position.
