Block diagram, Electrical specification, Sds-8424 trusted – Rockwell Automation T8424 Trusted TMR 120V ac Digital Input Module User Manual
Page 2: Industrial control system trusted, Ics triplex, Mechanical specification, Environmental
 
SDS-8424 
Trusted
TM
Industrial Control System
Trusted
TM
TMR 120V ac Digital Input Module-T8424
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 Website:- 
www.icstriplex.com
BLOCK DIAGRAM
ELECTRICAL SPECIFICATION
Number of Inputs
40 Channels
Field Common Isolation
Sustained Working
±250V dc
Maximum Withstanding
±2.5kV dc
Input Voltage
Measurement Range
150V ac
Maximum Withstanding
250V ac RMS or dc
Channel Input Resistance
25k:
Power Consumption
15 to 18W
Sample Update Interval (no 
filter) 
5ms
Self-Test Interval
2 minutes
Sequence of Events
Event Resolution
1ms
Time-stamp Accuracy
±0.5ms
Thresholds
Turn-on Voltage
82V ±10%
Turn-off Voltage
26V ±10%
Fusing
50mA on T8823 FTA
Intrinsic Safety
External barrier
Circuit Type
Fault tolerant, fully triplicated
MECHANICAL 
SPECIFICATION 
 
Dimensions (HxWxD): 
241mm x 30mm x 300mm 
(9.5ins x 1.2ins x 11.8ins) 
 
Weight: 
1.13kg 
(2.5lbs) 
 
ENVIRONMENTAL
 
Operating Temperature: 
 
-5
°C to 60°C
(23
°F to 140°F)
 
Operating Humidity: 
5 to 95%, non-
condensing 
 
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 
FTA
Input
Field
Device
F
ie
ld
T
er
m
in
at
io
n
U
n
it
(F
T
U
)
SLICE A
IMB A
FRONT PANEL
A/D
CONVERTER
FIELD LOGIC
CONTROL
IS
O
L
A
T
IO
N
B
A
R
R
IE
R
SLICE POWER
SUPPLY
HOUSEKEEPING
FIU
SLICE CONTROL A
TIME STAMP
BUS INTERFACE
HOUSEKEEPING
MODULE TEMP
SUPPLY DIAG
DSP REFERENCE
REDUNDANT
SUPPLY
24V1
24V2
HIU POWER
FIU POWER
FRONT PANEL
VOTING LOGIC
SLICE B
SLICE C
SERIAL DISPLAY LATCHES
VOTED STATUS DISPLAY LEDs
HEALTH
INDICATORS
SLICE B
SLICE C
IMB B
IMB C
HIU
VAC