Tricon System External Termination Panels Introduction

Compression terminals on the standard panel are designed for use with 24- to 12-gauge (0.3 mm2 to 2.1 mm2) wiring. Some panels have an optional current-limiting series resistor, others have a fuse with a blown-fuse indicator, to protect the field wiring and field device.

Standard termination panels are pre-configured for a specific application. For instance,commoned standard termination panels can be ordered with commoned power-and-return, or redundant DC power configurations with a diode-ORing. The thermocouple input termination panel provides cold-junction temperature sensors and can be ordered with upscale, downscale, or programmable burnout detection. A standard termination panel for analog voltage inputs provides commoned or non-commoned signal returns, while the current-mode version has a precision resistor at each input point to convert current to voltage.

Each standard termination panel is packaged with a matched interface cable that connects the  panel to the backplane of a Tricon chassis. A female connector at one end of the cable is keyed to match the male connector on the Tricon backplane. A male connector on the other end of the cable attaches to the standard termination panel. In addition to standard termination panels, there are other types of termination panels,

including:

• Basic termination panels

• Hazardous location (nonincendive) termination panels

• RG 1.180 Termination Panels

• Termination panels with interposing relays

• Bypass panels for digital inputs

• Termination panels with RTD/TC/AI input signal conditioning

• Termination panels for 3603B digital output modules

• Termination panels for 3806E analog output modules