ObjectivesObjectives

1. CDR Wireless 2.0 system overview

2. Learn the proper technique of installing the CDR Wireless 2.0 system.

– Pre-installation considerations– Installation procedures– Post-installation conversation

3. Diagnose common installation issues

Wireless System Overview Wireless System Overview

CDR Wireless performs identically to our Standard CDR (wired) product…

EXCEPT

it uses a 2.4 GHz Radio Frequency (RF) signal to send X-ray images from Wireless Sensor (in the patient’s mouth) to USB Base Station

Wireless System - Primary Elements

Wireless System - Primary Elements

• Wireless Sensor• Antenna / Receiver• USB Interface• Wireless Sensor Driver and Utilities

Figure 1. System DiagramFigure 1. System Diagram

Wireless Sensor(in mouth)

2.4 GHz RF 1 -way

Link

(wireless)

To PC Workstation

USB 2-way Link

(wired)

Antenna/Receiver - note that the blue triangle marks the ACTIVE SIDE of the antenna. This side must face the patient. This section can be separated from the USB interface and remotely mounted using a CAT 5 cable.

USB Interface - this section contains the sensor docking port. This is for diagnostics/ programming only. Customers should NOT store sensor in this port. Please instruct them in this.

Receiver /Interface aka “Base Station”

1. Wireless Sensor1. Wireless SensorProvides FM digital data to Antenna /

Receiver via RF link (3 channels available)

Powered by single, water-resistant, non-rechargeable battery

Pushbutton on battery package turns Sensor on / off

1. Wireless Sensor - continued1. Wireless Sensor - continued

• Sensor turns off automatically if inactive for approx. 5 minutes

• Uses transparent, sealable, saliva-resistant sheaths

• Displays Sensor status via dual LED indicator

Figure 2. Wireless Sensor Figure 2. Wireless Sensor

Pushbutton On/Off Switch

Dual LED Indicator

Battery Contacts

2. Antenna / Receiver2. Antenna / Receiver

• IMPORTANT: Locate Antenna as close as possible to Wireless Sensor (within 6 feet), in front of the patient’s face. (See attached installation guide for detailed instructions and diagrams).

• Antenna can be pivoted and rotated for enhanced reception

2. Antenna / Receiver - continued2. Antenna / Receiver - continued

• Dockable with USB Interface or located remotely, depending on site.

• If undocked from USB Interface, use Cat-5 cable (25 feet max.) for connection.

• Optional wall or ceiling mounting.

Figure 3. Antenna / Receiver Figure 3. Antenna / Receiver

Docking Connector

LED Indicator

RJ-45 Connector

3. USB Interface3. USB Interface

• Provides diagnostic and programming docking for Wireless Sensor

• Size specific docking tab must be set for size 1 and size 2.

• This is not a storage device. It should only be used when programming/troubleshooting!

3. USB Interface - continued3. USB Interface - continued

• Sensor cradle permits field-upgradable firmware updates.

• Connects to, and is solely powered by, PC workstation’s USB port (1.1 Standard). The interface will function with USB 2.0 or 1.1 controllers.

LED Indicators

Sensor Cradle

Battery Holding Slot

NOT SHOWN:

• Docking Connector• RJ-45 Connector• USB Connector

Figure 4. USB Interface Figure 4. USB Interface

4. Wireless Sensor Driver, Firmware, and Utilities

4. Wireless Sensor Driver, Firmware, and Utilities

• Wireless 2.0 Driver (usbcdrw.sys).• Wireless SDX software version 4.0.0.117• Wireless 2.0 system is compatible with

CDR DICOM 3.0 software and later and Wireless 2.0 and SDX/Wireless software.

• Wireless 2.0 is compatible with Windows 2000 and Windows XP Operating systems only.

• Wireless Monitor: On top when software is initialized and can be minimized. When minimized it is accessed from the System Tray. Provides status, serial number, battery level, signal strength and selected RF channel for currently connected Sensor.

• Check boxes available to disable the base station and lock in a specific sensor. When locking a sensor a list of registered sensors will appear on a pull down list.

4. Wireless Sensor Driver, Firmware, and Utilities

4. Wireless Sensor Driver, Firmware, and Utilities

InstallationInstallation• Pre-Installation Considerations

– Known Sources of Interference– RF Environment Utility

• Antenna Placement– Line of Site– Distance– Examples of correct and incorrect placement

Installation (cont)Installation (cont)

• Loading Software Drivers– Unplug ALL CDR Wireless hardware– Load CDR DICOM software and then Wireless

2.0 software.– Load SDX/Wireless software.

Installation (cont)Installation (cont)

• Post Installation Discussion– Adding new “wireless” devices– Moving Antenna– Transmission period

• Do not block antenna• Have patient remain still

– Battery

Pre-Installation ConsiderationsPre-Installation Considerations

• LOOK and ASK about– KNOWN sources of interference

• Wireless networks (802.11b, 802.11g)• CEREC 3 wirelessly communicating• Spread-spectrum 2.4GHz home phones

– POSSIBLE sources of interference• Microwave ovens• Nearby businesses (tanning salons, bank alarms, radio

towers, etc.) • Covert surveillance vehicles• Crop circles

Pre-Installation ConsiderationsPre-Installation Considerations

• Perform an RF environment test, using the CDR Wireless Utility– refer to user guide – run test for at least five minutes in scan mode

(Scans all three channels)– Use channel(s) with least amount of noise– Check all firmware and cpld versions of the

wireless hardware in the wireless utility. See next slide for the correct versions.

Antenna PlacementAntenna Placement• ANTENNA PLACEMENT is CRITICAL

– Must be DIRECTLY in FRONT of the PATIENT’S FACE

– It must be unobstructed from the patient face to the Antenna (“line of site”)

– ACTIVE SIDE of the antenna (marked by blue triangle) FACING the patient

– DISTANCE from patient face to antenna must by 6 ft or less.

Antenna PlacementAntenna Placement• Each room (each chair) must have it’s OWN

receiver/interface. Customer MUST NOT MOVE antenna once it is installed.

Antenna Placement ExamplesAntenna Placement Examples

GOOD

SO-SO

NO NO!

IDEAL

TOP VIEW

Head of Chair

Foot of Chair

The antenna should be placed as close to the center of the FRONT of the

patient as possible

Solid objects should not be BETWEEN the antenna and the patients face… they will block the transmission

NO!

SIDE VIEW

Antenna Placement ExamplesAntenna Placement Examples

GOODSO-SO

NO NO!

IDEAL

NEVER put the antenna BEHIND or DIRECTLY ABOVE the patients head

Remember: Solid objects block the transmission… in this case the foot of the chair

Loading Software DriversLoading Software Drivers

• Makes sure ALL CDR devices are unplugged/disconnected from the computer

• Insert either the Patterson Eaglesoft 11.00 Integration or Wireless 2.0 CD into CD-ROM drive and follow the Install Wizard

• Insert the SDX/Wireless CD and follow the Install Wizard

• Restart Computer• Plug in CDR Wireless Hardware (Wireless USB

Interface into the USB port).

Post Installation DiscussionPost Installation Discussion• After Installation is complete and tested,

PLEASE be sure to discuss the following topics with the customer. – Adding new “wireless” devices may create

interference with their new CDR wireless system if it operates in the 2.4GHz range

– Under NO circumstances should they move the antenna. This can cause the system to operate poorly.

Post Installation DiscussionPost Installation Discussion

– During the transmission period (the time between exposure and the image appearing on the screen), please inform the customer that for best results, they:

• Do not come between the patient and the antenna• Ask the patient to remain motionless until the image is on

the computer screen.

Post Installation DiscussionPost Installation Discussion

– Battery • The battery leads can be shorted by placing the battery

face down on a metal surface… doing so will discharge the battery.

• Do not get the battery leads wet.• Demonstrate correct install/removal of the battery from

sensor.

By NowBy Now

• you should have installed the drivers• installed the hardware - with the receiver

directly in front of the patients face.• Properly install the battery on the sensor• Now you are ready to perform an RF

environment test to determine the optimal channel for this customer’s location

TroubleshootingTroubleshooting

INTERFERENCE ISSUES:

•Interference issues may appear in a number of ways, specifically:–As thin lines in the images.–As black images or images with black vertical bands.–If the wireless monitor displays a low signal strength, although the Sensor is on and still in close proximity to the Receiver (within 6 feet).–If the message “Loading Firmware” frequently appears.

TroubleshootingTroubleshooting

INTERFERENCE ISSUES:

•If the above issues occur, try the following fixes:–Move the Antenna to within 6 feet of the patient’s face, but no more than 45 degrees from the front of the face.–Make sure the front of the Antenna (logo side) is facing the patient.–Change the Sensor and USB Interface to a different channel.–Check for equipment in the office that may cause the interference (Microwave ovens, CEREC, Cordless phones or wireless networks).

TroubleshootingTroubleshootingUSB CONNECTIVITY ISSUES:

If loss of connectivity to the wireless Base Station is reported, the following items must be checked:

–Is the orange LED lit on the Base Station when in CDR or Advanced Imaging? If the LED is lit, it indicates that the device is detected. Skip ahead to the Receiver section below. If it is not lit, continue with the next step.–Is the CDR Wireless device listed in Windows Device Manager? (If it is not listed, unplug and re-connect the Base Station). –If the device is listed after reconnecting the Base Station, check for other USB devices on the same controller and move them to a different controller. If it is not listed, continue with the next step.

TroubleshootingTroubleshooting

USB CONNECTIVITY ISSUES:

–Plug the Base Station into another USB port and check Device Manager to see if it is detected. The CDR Wireless 2.0 device is list under the category (CDR Hardware). If it is detected, start the software and test the system. If it is not detected, continue with the next step.–Restart the computer and check Device Manager. If the device is listed, start the software and test the system. If the problem continues, replace the Base Station.

TroubleshootingTroubleshooting

RECEIVER CONNECTIVITY ISSUES

–This issue may be incorrectly reported as USB connectivity. –When in CDR or Advanced Imaging, the LED should be lit on the Receiver.

–If the LED is not lit, exit the program, wait 30 seconds, and restart the program.–If the problem persists and the Receiver is docked, connect the Receiver with category 5 cable and restart the software.–If the unit is not docked, reseat the category 5 cable and restart the software.–If the problem persists, replace the Receiver.

TroubleshootingTroubleshootingSENSOR CONNECTIVITY ISSUES

–Check the wireless monitor for signal and battery strength.–If the “Mini Monitor” has the boxes “Always Use this sensor” and Base Station disabled” checked, then uncheck them.–Check the Sensor LED for activity (blinks green once every 6 seconds).–If there is no activity, try reseating or replacing the battery.–If the problem persists remove the battery and clean the sensor contacts with a Q-tip and isopropyl alcohol. Dry the contacts and remount the battery.–Exit the CDR program and dock the sensor in the base station. Start the “Wireless Utility” and read receiver info and sensor info. Check that the sensor channel matches the receiver’s channel.–If the problem persists replace the sensor.