National Instruments RS485 - Manual (Page 14)

NI 9871 Operating Instructions 14 ni.com
Note Contact NI for Bellcore MTBF specifications at
other temperatures or for MIL-HDBK-217F
specifications.
Power Requirements
Power consumption from chassis
Active mode ............................... 0.5 W max
Sleep mode ................................. 50
μW max
Thermal dissipation (at 70 °C)
Active mode ............................... 1.5 W max
Sleep mode ................................. 55 mW max
Required external supply
voltage range (V
SUP
) ......................... +8 to +28 VDC
Power supply consumption from external supply V
SUP
Typical ........................................ 1 W
Maximum ................................... 3.5 W
Physical Characteristics
If you need to clean the module, wipe it with a dry towel.
Weight............................................... Approx. 153 g (5.4 oz)