Rockwell Automation T8830 Trusted 40 Channel Analogue Input FTA User Manual
Sds-8830 trusted, Industrial control system trusted, Assembly
 
SDS-8830 
Trusted
TM
Industrial Control System
Trusted
TM
40 Channel Analogue Input FTA -T8830
Issue 6 Apr 2010
ASSEMBLY
DESCRIPTION
 
The 40-channel T8830 Trusted
TM
Field
Termination Assembly (FTA) is the primary 
interface between the Trusted
TM
TMR Analog
Input module and the field device (wiring) loop. 
The FTA is supplied with 250
dropping
resistors, suitable for 4-20mA current loops.
The FTA is made up of several components: 
the interface cable connector and hood lock, 
loop power distribution, dropping resistors, and 
field input terminations. 
To reduce integration time, the interface cable 
which connects the FTA and its I/O module is 
pre-assembled and fitted with a pair of 
specialized hoods. These hoods are used to 
secure the cable in place. The FTA hood fits 
into the metal slot retainer shown in the 
illustration at left. 
To facilitate the need for on-line 
replacement of an unhealthy I/O 
module, the interface cable is designed 
to provide the user with two different 
methods for on-line maintenance. The 
first method involves the use of a dual 
connector hood. The dual connectors 
allocate an adjacent slot in the 
Trusted
TM
chassis for a hot-replacement
module. Refer to Figure 1 below for 
more details regarding a dedicated 
spare slot approach. 
The second method of hot replacement 
uses a “one-to-many” approach. This 
feature is called the SmartSlot Link 
(SSL). The SSL furnishes the method 
to use a single I/O module slot as a hot 
replacement slot. This configuration 
reduces I/O chassis space by using a 
single slot for hot replacement of all 
modules of that type. In this case the I/O 
cable has a second socket on the back 
of the module end for connecting a 
cable to the hot replacement slot. 
Figure 1
FEATURES
40 TMR input points 
per assembly 
Easy to mount and 
replace 
Industry standard 
field device 
connections 
Standard DIN rail 
compatibility 
Loop current 
limiting and 
dropping resistors 
pre-installed 
Small physical size
Low cost
On-board LED for 
loop power integrity 
indication 
Interface
Cable
F
ie
ld
D
ev
ic
e
Dual Hood
P
rim
ar
y
&
H
ot
S
pa
re
M
od
ul
es
FTA
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