Foxboro CP30B Control Processors Brand

The Termination Assembly Adapter (TAA) modules for the 100 Series Fieldbus

Module Upgrade subsystem are installed in the new conversion mounting structures

to mount the Termination Cable Assemblies (TCAs) formerly used by the 100 Series

Fieldbus Modules (FBMs). TAAs facilitate communications between the Foxboro™

DCS200Series FBMs andthe original 100 Series FBMs’ field I/O wiring, via the

termination connectors on these existing TCAs.

TAAs are available as either passive or active. Passive units pass signals, unmodified,

via wiring from the termination connector (i.e., nosecone attachment point) to the rear

backplane connector. Active TAAs modify the field signals (such as by providing signal

conditioning and channel isolation) before sending them to their associated 100

Series conversion mounting structure.

Figure 1 shows the dimensions of a TAA module. All TAAs use this same housing and

have the same dimensions.

Features

LEDIndicators

• Support for a variety of signals and power

• Easyinstallation in existing 100 Series mounting structures

• Support for existing Termination Cable Assemblies (TCAs)- no need to replace

field wiring

• Active TAAs provide built-in signal conditioning and channel isolation

Whenthe termination connector on a 100 Series Termination Cable Assembly is

attached to a TAA, a green LED on its front is illuminated when 24 V dc power is

supplied to the TAA.

The red LEDat the bottom of the connector is not used since its functionality is not

supported by the 200 Series Foxboro™ Fieldbus Modules. The status LEDs on the

termination connector are functional for digital signals and indicate the state of these

signals