National Instruments Deterministic Ethernet Expansion Chassis NI 9144 - Manual (Page 14)

NI 9144 User Guide and Specifications 14 ni.com
Specifications
The following specifications are typical for the –40 to 70°C operating
temperature range unless otherwise noted. For more information, refer to
the specific module specifications.
Network
Network interface ...................................100BaseTX Ethernet
Compatibility ..........................................EtherCAT
Communication rates ..............................100 Mbps
Maximum cabling distance.....................100 m/segment
Power Requirements
Caution You must use a National Electric Code (NEC) UL Listed Class 2 power supply
with the NI 9144 chassis.
Recommended power supply..................48 W, 24 VDC
Power consumption ................................20 W maximum
Chassis input range .................................9 to 30 V
Physical Characteristics
If you need to clean the controller, wipe it with a dry towel.
Screw-terminal wiring ............................0.5 to 2.5 mm 2 (24 to 12 AWG)
copper conductor wire with
10 mm (0.39 in.) of insulation
stripped from the end
Torque for screw terminals.....................0.5 to 0.6 N · m
(4.4 to 5.3 lb · in.)
Weight ....................................................906 g (32.7 oz)
Safety Voltages
Connect only voltages that are within these limits.
V terminal to C terminal .........................30 V max, Measurement
Category I