FOXBORO 100 Series Termination Assembly Adapter Modules

FOXBORO 100 Series Termination Assembly Adapter Modules

Overview

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™ DCS 200 Series FBMs and the 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.

Features

• Support for a variety of signals and power 

• Easy installation 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

TAA Labels

Certain TAAs, listed in “Available TAA Modules”, support the replacement of multiple 100 Series FBMs. For example, TAA01 is used to replace FBM01 or FBM43. Thus, it can accept the Termination Cable Assemblies from any of these FBMs attached to its front.

For convenience, a label is mounted on the top of these TAAs to indicate which 100 Series FBM the TAA is substituting. Figure 2 shows an example of this label, which has entries for FBM01 or FBM43 with checkboxes for each FBM. Installers mark the appropriate checkbox to indicate which FBM is being replaced with this TAA, and which Termination Cable Assembly should be used with this TAA. We recommend that installers use permanent markers such as a Sharpie® pen (or equivalent) when marking the checkboxes.

TAA01 Specifications

The TAA01 module supports communications for the following 100 Series FBMs: • FBM01 - replaced by FBM201 or FBM214b • FBM43 - replaced by FBM243

Functional Specifications

I/O Connection

The TAA01 provides a passive I/O connection between the Termination Cable Assembly of its replaced 100 Series FBM and the 100 Series conversion mounting structure.

Indicator (Mounted On Termination Cable Assembly):• One green light-emitting diode (LED)

Communication:Via the redundant Fieldbus

Environmental Specifications

Operating

Temperature:0 to 60°C (32 to 140°F)

Relative Humidity:5 to 95% (noncondensing)

Altitude:-300 to +3,000 m (-1,000 to +10,000 ft)

Contamination:Class G3 (Harsh) as defined in ISA Standard S71.04

Storage

Temperature:-40 to +70°C (-40 to +158°F)

Relative Humidity:5 to 95% (noncondensing)

Altitude:-300 to +12,000 m (-1,000 to +40,000 ft)