TCIF23TSX Johnson Controls Communications Interface

Overview

The TCIF23TSX Johnson Controls Communications Interface is a specialized clock module and serial interface designed to enhance the connectivity of building automation systems. Powered directly by the TTL Modbus port of the controller, this device provides a seamless link for serial communications, incorporating built-in diagnostic indicators and automated hardware test capabilities to ensure reliable performance.

Features

• Features a self-extinguishing black container designed for rugged physical protection.
• Equipped with distinct LED indicators for real-time tracking of TTL Modbus and RS485 Modbus communication status.
• Includes a secondary lithium battery that charges in 24 hours directly from the device’s main power supply.
• Provides precise clock maintenance with an integrated clock drift rate of less than 60 seconds per month.
• Supports flexible communication structures utilizing both subordinate TTL and RS485 connection topologies.

Specifications

• Dimensions: 176.0 mm x 30.0 mm x 25.0 mm (6 15/16 in. x 1 3/16 in. x 1 in.)
• Heat and Fire Resistance Category: D
• Degree of Protection: IP00
• Mounting Method: On rigid support with a cable tie
• Connection Types: Pico-Blade connector and a fixed screw terminal block for wires up to 2.5 mm² (14 AWG)
• Maximum Cable Length (RS485 Modbus): 1,000 m (328 ft)
• Operating Temperature: 0°C to 55°C (32°F to 131°F)
• Storage Temperature: -25°C to 70°C (-13°F to 158°F)
• Operating Humidity: 5% to 95% RH (non-condensing)
• Power Supply: Driven directly via the controller’s TTL Modbus port
• Software Structure: Class A compliance
• Communication Ports: 1 TTL Modbus subordinate port, 1 RS485 Modbus subordinate port
• Battery Autonomy: Over 6 months in the absence of a primary power supply
• Compliance: CE Mark (Europe EMC Directive and RoHS Directive)

Applications

The TCIF23TSX is used to extend the peripheral capabilities of field controllers within heating, ventilation, air conditioning (HVAC), and commercial building automation architectures. It acts as an integration interface to network fields using Modbus communication protocols, bridging external controllers with localized serial accessories. Additionally, its robust onboard real-time clock serves as a critical fail-safe application for logging data and scheduling tasks across automated environments even when a mains power outage occurs.