User's Manual

NetGuard™ Operating Instructions 0070-10-0678-01 2 - 5
NetGuard Device Operating Instructions
2.3.2 Power-Up Sequence
Each time the Reusable and Disposable sections are connected together, the assembled
device goes through the power-up sequence. The LED indications that occur during the power
up sequence follow and are summarized in Table 2-2.
NOTE: For information regarding the location of the device LED’s,
refer to ‘‘NetGuard Device Components’’ on page 2-3.
• The device status LED flashes green one time and an audible one time beep indicates that
the power-up self-test was successful The device status LED illuminates yellow continuously
indicating that the power-up self-test failed
• The device performs an automatic self-test and pauses for 2 seconds
• Following a successful power-up self-test and a pause of two (2) seconds, the patient LED
flashes green in sync with the patient heart rate while it is detected
• Following a successful power-up self-test and a pause of two (2) seconds, the patient LED
flashes yellow if the heart rate is not detected
• Following the first successful heart rate detection, the device patient LED flashes green
while the device is successfully communicating wirelessly with the server
• Following the first successful heart rate detection and a delay of 10 seconds, the device
status LED flashes yellow when wireless communication with the server is not detected
• After 20 seconds of a valid heart rate and established wireless communication, the
patient and status LED’s will be turned off
2.3.3 Communication Range
The device communicates with the access point using an IEEE 802.15.4 wireless interface.
This link is used for remote patient monitoring, device configuration, and device diagnostics.
The access point’s maximum transmit and receive radius (the maximum distance to any
device) is 30 feet. If the communication quality of the link between the device and its
associated access point falls below the threshold level, the device attempts to locate and
associate with a new access point
. Each access point can support a minimum of 20 devices
simultaneously.
TABLE 2-2
LED COLOR INDICATION
Patient
LED
Flashing yellow Self-test successful and device attempting to acquire a patient heartbeat
Flashing green for 30
seconds in sync with patient
heartbeat
Self-test successful and patient’s heartbeat detected
Off Power-up self-test successful, initial patient’s heart beat detected, and device
has communicated wirelessly with the server for more than 20 seconds
Status
LED
Single green flash when
Disposable and Reusable
sections are initially mated
Power-up self-test was successful
Steady yellow Power-up self-test failed
Steady green Power-up self-test successful, initial patient’s heart beat detected, and device is
communicating wirelessly with the server
Flashing yellow Wireless communication with server not established
Off Power-up self-test successful, initial patient’s heart beat detected, and device
has communicated wirelessly with the server for more than 20 seconds