Rockwell Automation 1794-ACNR INSTL INSTR REDUNDANT MEDIA User Manual
Page 6

FLEX I/O ControlNet Redundant Media Adapter
6
Publication 1794-5.18 – September 1996
Power Supply
Note: In order to comply with CE Low Voltage
Directives, you must use a Safety Extra Low
Voltage (SELV) or a Protected Extra Low
Voltage (PELV) power supply to power this
adapter.
Input Voltage Rating
24V dc nominal
Input Voltage Range
19.2V to 31.2V dc (includes 5% ac ripple)
Communication Rate
5M Bits/s
Indicators
Comm A – red/grn
Comm B – red/grn
I/O Status – red/grn
Flexbus Output Current
640mA maximum @ 5V dc
Isolation Voltage
100% tested at 850V dc for 1s between user
power and flexbus
Power Consumption
400mA maximum from external 24V supply
Power Dissipation
4.6W maximum @ 19.2V dc
Thermal Dissipation
15.7 BTU/hr @ 19.2V dc
Environmental Conditions
Operational Temperature
Storage Temperature
Relative Humidity
Shock
Operating
Non-operating
Vibration
0 to 55
o
C (32 to 131
o
F)
–40 to 85
o
C (–40 to 185
o
F)
5 to 95% noncondensing
30 g peak acceleration, 11(+1)ms pulse width
50 g peak acceleration, 11(+1)ms pulse width
Tested 5 g @ 10–500Hz per IEC 68-2-6
ControlNet Cable
Belden RG-6/U
Power Conductors
Wire Size
Category
12 gauge (4mm
2
) stranded maximum
3/64 inch (1.2mm) insulation max.
2
1
Specifications continued on next page