Note 4: The external pull-up resistor is connected between the digital output bit and an external supply. Adding
an external pull-up resistor connects it in parallel with the internal 100 kΩ pull-up resistor of that par cular
digital input/output bit to the internal 5 V supply. Careful considera on should be made when considering the
external pull-up resistor value and the resultant pull-up voltage produced at the load.
Network
Ethernet connec on
Table 6. Ethernet connec on specifica ons
Parameter
Specifica on
Ethernet type
100 Base-TX
10 Base-T
Communica on
rates
10/100 Mbps, auto-nego ated
Connector
RJ-45, 8 posi on
Cable length
100 meters (328 feet) max
Addi onal
parameters
HP Auto-MDIX support
Network configura on
Table 7. Network configura on
Parameter
Specifica on
Network IP
configura on
DHCP, link-local, sta c
DHCP may be disabled by the user and a sta c IP address assigned
If DHCP is enabled but is unsuccessful at obtaining an IP address the device will fall
back to link-local and request the IP address 169.254.100.100.
Network device
name
The name used for detec ng the device using mDNS (zero-conf). This name may be
changed using the web interface.
Network name
publica on
By mDNS
User accounts
There are two built-in user accounts:
admin
share
These accounts are case-sensi ve and cannot be changed using the web interface.
WebDAQ 504 User's Guide
page 22
