
SDS-T8840 
TM
Trusted
 Industrial Control System 
TrustedTM Temperature Input FTA - T8840 
GENERAL ASSEMBLY 
DESCRIPTION 
The Trusted 
system and up to eight temperature, voltage or current devices using a 
range of available plug in conditioning units. The FTA excludes the 
conditioning units to allow maximum configurability. More than one type of 
conditioning unit can be used on the same FTA. Compatible conditioning 
unit include the 7B series of units from Analog Devices and SCM7B series 
from Dataforth. 
The Trusted 
(CJC) resistor for each of the inputs. This makes the FTA compatible with 
Thermocouple conditioning units. 
The Trusted 
Module using either Companion cables TC-211/212 or Smart Slot cables 
TC-511/512. The Output can also be connected to the Analogue Input 
module via a VFTA if necessary to be compatible with an existing 
installation. 
The VFTA is designed to be mounted on either of the TS32 or TS35 DIN 
rails in the horizontal or vertical positions as required. 
TM
 Temperature FTA is designed to interface between a Trusted 
TM
 Temperature FTA includes a Cold Junction Compensation 
TM
 Temperature FTA can connect direct to an Analogue Input 
FEATURES 
Eight Input channels per 
Trusted Temperature FTA 
 Flexible user defined 
conditioning 
 Standard DIN rail 
compatibility 
 Configurable 2 or 3-wire 
RTD inputs 
 Dual 24V Supply 
Issue 3 Aug 2006 
 

SDS-T8840 
Trusted
TM
 Industrial Control System 
TrustedTM Temperature Input FTA - T8840 
ELECTRICAL SPECIFICATION 
Voltage Range  
Maximum Input Current 
Number of Inputs 
Possible Input Types 
(dependant on conditioning unit 
fitted) 
Accuracy, resolution 
15 to 28V dc 
2.5A 
8 
Isolated Voltage 
Isolated Current 
Isolated RTD Pt 100ohm 
Isolated RTD Ni 120ohm 
Powered Isolated 2 wire 4-20mA 
transmitter 
Isolated Potentiometer 
Isolated Thermocouple J,K 
Dependant on conditioning unit 
MECHANICAL 
SPECIFICATION 
Dimensions (HxWxD): 
110mm x 145mm x 68mm 
(4.3ins x 5.7ins x 2.6ins) 
Depth with conditioning 
unit fitted: 
90mm 
(3.6ins) 
Weight (fully populated) 
248gms 
(0.55lbs) 
ENVIRONMENTAL 
Operating Temperature: 
-5°C to 60°C 
(23°F to 140°F) 
Operating Humidity: 
5 to 95%, noncondensing 
Vibration: 
10 to 57Hz  ±0.075mm 
57 to 150Hz  1.0g 
Shock: 
15g, ½ sine wave, 11ms 
EMI (IEC 801): 
ESD 
Air discharge to 15kV. 
Contact discharge to 8kV 
Radiated Fields 
10V/m, 27MHz to 
500MHz 
Transients and Bursts 
2kV, 2.5kHz for 
t=60 seconds 
ICS Triplex 
Technical data sheets are intended for 
information and guidance. The Company 
has a policy of continual product 
development and improvement.  
Specifications are subject to change 
without notice. For latest information, visit 
our Websi te:- www.icstr iple x.com