Welch Allyn Propaq LT 802LT0N, Service Manual, Page: 18 / 80

14 Troubleshooting and repair Welch Allyn Propaq LT Vital Signs Monitor
Radio
Radio-equipped Propaq LT monitors support wireless connection to one of the two types
of Acuity networks.
In facilities with 802.11a networks, administrators can reconfigure the radio, the Acuity
network, or both, to meet local security or policy requirements. When you send a model
802LTAN or 802LTAS monitor to Welch Allyn for service, the radio is reset to the factory
configuration.
Radio troubleshooting information applies only to radio-equipped monitors. It is not
intended for comprehensive troubleshooting of the Acuity system. To troubleshoot the
Acuity system, refer to the appropriate Acuity service contact for your system.
Model Wireless connection
802LTRN, 802LTRS 802.11 FHSS Acuity network
802LTAN, 802LTAS 802.11a Acuity network
802LT0N, 802LT0S none
Caution If you send a model 802LTAN or model 802LTAS monitor to Welch
Allyn for service and the monitor is then returned to you, you must reapply any
custom radio settings to the monitor before you attempt to reconnect the
monitor to your Acuity network.
Symptom Possible Cause Possible Corrective Action
No Acuity connection—network
communication icon ( ) is not
displayed on the monitor screen. Wireless communication disabled
in the monitor configuration. Use the configuration utility to enable wireless
communication for the monitor.
No Acuity connection—network
communication icon with slash
( ) is displayed on the monitor
screen and the yellow indicator
above the screen is lit. Monitor is out of radio range.
802LTRN/S: RSSI > approx. 60.
802LTAN/S: RSSI > approx. 70.
Move the monitor within range of an Acuity
access point.
Netname (ESSID) set wrong. Set the monitor network name to the Acuity
network name. (Default: com.protocol.)
USB connected to the monitor
through the cradle. Disconnect the USB cable from the cradle.
No Acuity connection—network
communication icon with slash
( ) and “Disconnected” are
displayed on the monitor screen,
and the green indicator above
the screen is flashing. Monitor is intentionally
disconnected from the network by
the user. Use the monitor interface to connect to the
network.
Radio Monitoring service screen
persistently displays “Searching
for access point”; monitor
displays ( ). Monitor radio cannot find a signal
from the network. Move the monitor within range of an access
point on the current network.
Verify the Netname.
Radio Monitoring service screen
persistently displays “Searching
for access point” and “Radio
sleeping”; monitor displays ( ).
(802LTAN/802LTAS) Move within range of an access point and wait
for up to 3 minutes.
Display alternates between
“search” and “radio sleeping”. The monitor Netname does not
match the Acuity network name. Set the monitor Netname to the Acuity network
name (default: com.protocol).