Measurement Computing WEB-TEMP - Manual (Page 35)

WEB-TEMP User's Guide Specifications
35
Microcontroller
Table 13. Microcontroller specifications
Parameter Specification
Type One high-performance 8-bit RISC microcontroller (isolated)
One high-performance 16-bit RISC microcontroller (non-isolated)
Power
Table 14. Power specifications
Parameter Condition Specification
Supply current (Note 17) Continuous mode 440 mA max
External power input
(Note 16) +5 VDC ± 5%
(+5 VDC power supply provided)
External power supply
(included) MCC p/n PS-5V2AEPS +5VDC, 10 W, 5% regulation
Voltage supervisor limits 4.75 V > V
ext
or V
ext
> 5.25 V PWR LED = Off (power fault)
4.75 V < V
ext
< 5.25 V PWR LED = On
User output voltage range Available at +5V screw terminal 4.65 V min, 5.25 V max
User output current
available Available at +5V screw terminal 10 mA max
Note 16: Voltage specification applies at barrel plug power input. The power supply provided with the
board meets this specification at the rated total power supply current. If a different power supply is
used, small line resistances could cause significant voltage drop between the power supply and the
barrel plug input.
Note 17: This is the total current requirement for the WEB-TEMP which includes up to 20 mA for the
LEDs and 10 mA for the user voltage output.
Network
Ethernet compliance
Table 15. Ethernet compliance specifications
Parameter Specification
Device type IEEE 802.3 Ethernet 10Base-T
Device compatibility IEEE 802.3-2003 10 Mpbs Media Access Control
Ethernet connection
Table 16. Ethernet connection specifications
Parameter Specification
Ethernet type 10Base-T
Connector RJ-45, 8 position
Cable CAT-5 shielded, unshielded twisted pair
Length 100 meters max
MAC address 00:12:71:Cx:xx:xx, where xxxxx is the device serial number