Philips PageWriter TC20 User manual

PageWriter TC20 Cardiographs
Wireless LAN Option
INSTALLATION INSTRUCTIONS
Edition 1
July 2011

Notice
About this Edition
Published by Philips Medical
Systems
Printed in USA
Publication number 453564267741
Edition History
Edition 1, July 2011
Software revision A.05 and higher
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©2011 Koninklijke Philips
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trademarks of AmbiCom, Inc.

1
1
The PageWriter TC20 cardiograph supports the AmbiCom WL150N USB wireless adapter,
available as option D23.
The adapter is a USB dongle that includes an integrated diversity antenna with enhanced
transmit power and receiver sensitivity, and with superior delay spread and roaming
capabilities. It delivers dependable connectivity in almost all demanding clinical
environments, including those with limited access point availability, and those with numerous
and competing wireless devices.
The AmbiCom adapter is compatible with both the 802.11b and g wireless standards, and
operates in the 2.4 GHz section of the radio frequency spectrum, providing a data transmission
rate of up to 54Mbps.
Configuration is simple, using the Microsoft NetUI utility to set up and control network
connections and security settings.
Additional information about the AmbiCom adapter is available at the AmbiCom website,
www.ambicom.com.
This document provides the following information:
Security Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Configuring Wireless Adapter Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Before You Begin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Step 1. Inserting the Wireless USB Adapter . . . . . . . . . . . . . . . . . . . . . . . 5
Step 2. Loading Authentication Certificates and Keys . . . . . . . . . . . . . . . 6
Loading Authentication Certificates . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Importing User Certificates and Private Keys. . . . . . . . . . . . . . . . . . . 8
Step 3. Configuring Network Connection Settings . . . . . . . . . . . . . . . . . 10
Selecting the SSID for the Wireless Network . . . . . . . . . . . . . . . . . . 10
Adding a Network Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Configuring a WPA or WPA2 PSK Connection . . . . . . . . . . . . . . . . 12
Configuring a WPA or WPA2 PEAP-MSCHAPv2 Connection . . . . 13
Configuring a WPA or WPA2 EAP-TLS Connection. . . . . . . . . . . . 15
Configuring a WEP Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Step 4. Restarting the Cardiograph . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Wireless LAN Connectivity Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Specifications for the AmbiCom Wireless Device (Option D23) . . . . . . . . . 20
Contacting a Philips Response Center . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
1PageWriter TC20 Wireless LAN
Option Installation Instructions

Supported Security Options
2PageWriter TC20 Wireless LAN Installation Instructions
Supported Security Options
Authentication is supported through an integrated 802.1x supplicant supporting authentication
using pre-shared keys, as well as two extensible authentication protocol (EAP) types,
EAP-TLS and PEAP-MSCHAPv2.
Data privacy is ensured via encryption and decryption using AES (WPA2), TKIP (WPA), or
WEP. A comparison of the supported EAP types used with 802.1X authentication and the
certificate requirements for the different authentication methods is included in Table 1.
You configure all wireless LAN security and connection options on the network configuration
screens accessed through the Setup button on the main tool bar.
NOTE Some authentication methods may require that a valid authentication certificate be loaded and enabled
on the cardiograph. For details, see “Step 2. Loading Authentication Certificates and Keys” on page 6.
Table 1 Popular EAP types and required credentials
Type Credential(s) Database(s) Pros and Cons
PEAP-MSCHAPv2 Microsoft
password
AD Native support in Windows, CE
CA certificate on the network server
EAP-TLS Client certificate Certificate
authority (CA)
Very strong authentication
Native support in Windows, CE
CA, user certificates on every client
device and CA certification on the
network server

PageWriter TC20 Wireless LAN Installation Instructions 3
Table 2 describes the authentication options in the Windows NetUI utility. For details about
setting these options, see “Step 3. Configuring Network Connection Settings” on page 10.
Table 2 NetUI utility security settings
Setting Description
Encryption This setting specifies the type of encryption used by the wireless
adapter, and how the encryption key will be created.
None: No encryption
WEP: Wireless Equivalency Privacy (WEP) with up to four
static keys that can be 40-bit, 128-bit in ASCII, or 128-bit in
hex
WPA-PSK: TKIP with PSK, either ASCII passphrase PSK or
hex PSK
WPA-TKIP or AES: TKIP or AES with key generated during
EAP authentication
WPA2-PSK: AES with PSK, either ASCII passphrase PSK or
hex PSK
WPA2-TKIP or AES: TKIP or AES with key generated during
EAP authentication
802.1x
Authentication,
EAP Type
This setting is used with EAP authentication. The available settings
include:
None
PEAP-MSCHAPv2
EAP-TLS

Configuring Wireless Adapter Settings
4PageWriter TC20 Wireless LAN Installation Instructions
Configuring Wireless Adapter Settings
Configuring your wireless connection comprises the following steps:
Each of these steps is described in this guide, in detail.
Before You Begin
Before you start the configuration process, ensure you have the following available:
This document.
AmbiComUSB wireless adapter. See “Step 1. Inserting the Wireless USB Adapter” on
page 5.
Authentication certificate and keys, if needed, loaded onto a USB memory stick.
Certificate requirements for each encryption method are described in Table 1, “Popular
EAP types and required credentials,” on page 2. Contact your network administrator for
any certificate files.
The PageWriter TC Cardiograph Wireless LAN Upgrade Kit includes the AmbiCom adapter
and information about the adapter.
Configuration Step See ...
1Install the wireless adapter
If your cardiograph already has the adapter
installed, proceed to step 2.
“Step 1. Inserting the Wireless
USB Adapter” on page 5
2Load an authentication certificate or network key.
If not required, proceed to step 3.
“Step 2. Loading Authentication
Certificates and Keys” on page 6
3Configure the network connection using the NetUI
configuration utility.
“Step 3. Configuring Network
Connection Settings” on page 10
4Restart the cardiograph. “Step 4. Restarting the
Cardiograph” on page 18

Step 1. Inserting the Wireless USB Adapter
PageWriter TC20 Wireless LAN Installation Instructions 5
Step 1. Inserting the Wireless USB Adapter
CAUTION Only use AmbiCom wireless LAN adapters that have been purchased from Philips. The use of non-
approved wireless LAN devices with the PageWriter TC cardiograph is not tested or supported, and
Philips does not guarantee cardiograph operation or wireless LAN connectivity.
To enable the cardiograph for a wireless connection
Insert the AmbiCom USB adapter (USB dongle) into the USB port on the side of the
cardiograph.
If the port is already in use, that is, a USB memory stick with ECGs or worklist entries is
currently in the port, remove the memory stick and replace it with the wireless USB
dongle.
The dongle illuminates when it is properly connected.
You can now load certificates, as described in the next section, “Step 2. Loading
Authentication Certificates and Keys” on page 6.
To remove the USB dongle
Pull the USB dongle straight out from the port.
AWireless USB dongle
A

Configuring Wireless Adapter Settings
6PageWriter TC20 Wireless LAN Installation Instructions
Step 2. Loading Authentication Certificates and Keys
The cardiograph supports two types of certificates: general and user.
For general certificates, use the Load Certs button to load and enable certificates (for
example, 509 certificates and private keys) from a USB memory stick into the NetUI
utility’s certificate directory.
For user certificates (for example, EAP-TLS), use the Import Certs button to launch the
Microsoft Certificate Utility, which allows you to import a user certificate and private key
(located in the NetUI utility’s certificate directory) into the Microsoft System store.
Table 3 Load Certs and Import Certs options
If the encryption method you are using requires a certificate or an optional private key, have
the network administrator generate the certificate/private key as required, and load these files
onto a USB memory stick.
CAUTIONS Do not insert a USB memory stick into the cardiograph, or remove a USB memory from the
cardiograph, when the cardiograph is acquiring ECG data from a patient.
The PageWriter TC cardiograph only supports the USB memory stick that is available for purchase
as an optional accessory from Philips. Philips does not guarantee that other USB memory sticks are
compatible with the PageWriter TC cardiograph.

Step 2. Loading Authentication Certificates and Keys
PageWriter TC20 Wireless LAN Installation Instructions 7
Loading Authentication Certificates
To load an authentication certificate
1Have your network administrator put the certificate(s) onto a USB memory stick.
2If it is in the port, remove the AmbiCom wireless USB dongle from the USB port on the
cardiograph.
3Insert the memory stick with certificates into the USB port on the cardiograph.
4On the main screen, touch Setup on the tool bar.
The Configuration Setup and Service Utilities menu appears.
5Touch Configure ECG Network Settings.
6Touch the Wireless Network tab.
The Wireless LAN Adapter Settings section provides access to the NetUI configuration
utility and buttons for loading certificates.
7Touch Load Certs.
NOTE If the USB stick is not inserted in the USB port, an alert dialog box appears prompting you to
insert one.
In the Load Personal Certificate window, do the following:
aTouch Browse to show the contents of the USB drive.
bLocate and select the desired certificate, then touch OK to accept the entry and load
the certificate.

Configuring Wireless Adapter Settings
8PageWriter TC20 Wireless LAN Installation Instructions
8If a private key is required, repeat step 7, but load the private key file.
9Touch OK to close the window.
The certificate is now loaded.
If you are using a user certificate that also has a private key, proceed to “Importing User
Certificates and Private Keys,” next.
Importing User Certificates and Private Keys
NOTE This step is only required when using EAP-TLS authentication.
To import user certificates and private keys
1On the main screen, touch Setup on the tool bar.
2Touch Configure ECG Network Settings, then touch the Wireless Network tab.
3In the Wireless LAN Adapter Settings section, touch Import Certs.
4In the Certificates window on the Stores tab, touch the dropdown arrow and select My
Certificates. The Certificates list may be empty.
5Touch Import.

Step 2. Loading Authentication Certificates and Keys
PageWriter TC20 Wireless LAN Installation Instructions 9
6In the Import dialog box, select the From a file radio button and touch OK in the top right
corner.
7In the Select a Certificate File browser, navigate to the Certificates folder by selecting, in
order, Storage Card > Philips > Certificates,touching OK after each selection. Then
select the certificate file, and touch OK.
The next step is to import the private key associated with the certificate.
8To import the key, do the following:
aIn the Certificates window, select the My Certificates directory again.
The certificate you just imported is now listed on the right.

Configuring Wireless Adapter Settings
10 PageWriter TC20 Wireless LAN Installation Instructions
bSelect the certificate, and touch Import.
cIn the Select a Certificate file browser, touch the Type dropdown arrow and select
Private Keys.
dSelect the certificate and touch OK.
eWhen prompted, type the private key password, and touch OK.
fTouch OK in the Certificates window.
The private key is imported.
9Remove the USB stick from the port and replace it with the AmbiCom wireless USB
dongle.
Configuration is now complete. The rest of the EAP-TLS configuration is described in
“Configuring a WPA or WPA2 EAP-TLS Connection” on page 15.
Step 3. Configuring Network Connection Settings
After installing the wireless card and loading certificates (if needed) as described in the
previous sections, you must select the SSID for the network connection to use, choose
encryption/authentication methods to use, and specify any required credentials to permit
access.
NOTE If you are going to use EAP-TLS authentication, proceed directly to “Configuring a WPA or WPA2
EAP-TLS Connection” on page 15.
Selecting the SSID for the Wireless Network
To select the wireless network to use
1Ensure the AmbiCom wireless USB dongle is inserted in the USB port on the cardiograph.
2On the main screen, touch Setup on the tool bar.
3Touch Configure ECG Network Settings, then touch the Wireless Network tab.
4In the Wireless LAN Adapter Settings section, touch Configure.
The NetUI utility appears, displaying available networks in the Wireless Information tab.
The list refreshes automatically.

Step 3. Configuring Network Connection Settings
PageWriter TC20 Wireless LAN Installation Instructions 11
5Select the SSID of the desired wireless network and touch Connect. Scroll the list if
needed.
NOTE If the SSID you want to connect to is hidden (not broadcast), you must add it to the list by
touching Add New. See “Adding a Network Connection” on page 11.
The next step is to specify the encryption and authentication methods to use. Proceed to the
appropriate section:
Adding a Network Connection
If the SSID list does not show the entry you need, it is either because the connection is not on
the network or perhaps the SSID is not being broadcast. Regardless of the cause, you must add
the connection to configure it.
To add a connection
1Ensure the AmbiCom wireless USB dongle is inserted in the USB port on the cardiograph.
2On the main screen, touch Setup on the tool bar.
3Touch Configure ECG Network Settings, then touch the Wireless Network tab.
4In the Wireless LAN Adapter Settings section, touch Configure.
Table 4 Supported encryption and authentication options
Authentication Encryption 802.1x EAP Type See ...
WPA or WPA2 PSK -- page 12
WPA or WPA2 TKIP or AES PEAP-MSCHAP page 13
WPA or WPA2 TKIP or AES EAP-TLS page 15
WEP Shared -- page 17

Configuring Wireless Adapter Settings
12 PageWriter TC20 Wireless LAN Installation Instructions
5Touch Add New.
Configuration is complete.
Configuring a WPA or WPA2 PSK Connection
This option uses a network key instead of a certificate.
To configure a WPA or WPA2 PSK shared key connection
After selecting the SSID as described on page 10, select the following options in the Wireless
Network Properties dialog box:
1Touch the Encryption dropdown arrow, and select the desired method: AES or TKIP.
2Touch the Authentication dropdown arrow and select WPA-PSK or WPA2-PSK.
3Touch the Network key field and type the key.
4Touch OK.
The Wireless Information tab Status field refreshes and should show that the cardiograph is
connected to the selected network and give an indication of signal strength.

Step 3. Configuring Network Connection Settings
PageWriter TC20 Wireless LAN Installation Instructions 13
5To specify multiple networks to which the cardiograph can connect, repeat step 5 on
page 11 and the steps in this procedure as often as needed to configure the necessary set of
networks.
Configuration is complete. Proceed to “Step 4. Restarting the Cardiograph” on page 18.
Configuring a WPA or WPA2 PEAP-MSCHAPv2 Connection
This option uses a single certificate on the cardiograph for authentication.
To configure a WPA or WPA2 PEAP-MSCHAP connection
After selecting the SSID as described on page 10, select the following options in the Wireless
Network Properties dialog box:
1Touch the Encryption dropdown arrow, and select the desired method: AES or TKIP.
2Touch the Authentication dropdown arrow and select WPA or WPA2.
3In the 802.1X Authentication section, touch the EAP type dropdown arrow and select PEAP.
4Touch Properties.
5Provide the certificate user name, password, and domain.

Configuring Wireless Adapter Settings
14 PageWriter TC20 Wireless LAN Installation Instructions
6Select the Save Password check box.
Selecting the check box saves the credentials so that the cardiograph does not prompt the
user for a password every time it restarts.
7Touch OK in the top right corner of the window.
The Wireless Information tab Status field refreshes and should show that the cardiograph is
connected to the selected network and give an indication of signal strength.
8To specify multiple networks to which the cardiograph can connect, repeat step 5 on
page 11 and the steps in this procedure as often as needed to configure the necessary set of
networks.
Configuration is complete. Proceed to “Step 4. Restarting the Cardiograph” on page 18.

Step 3. Configuring Network Connection Settings
PageWriter TC20 Wireless LAN Installation Instructions 15
Configuring a WPA or WPA2 EAP-TLS Connection
This option uses two certificates, one on the server and one on the cardiograph, for
authentication.
Before proceeding, ensure you have already loaded and imported the certificate and associated
private key as described in “Loading Authentication Certificates” on page 7 and “Importing
User Certificates and Private Keys” on page 8.
To configure a WPA or WPA2 EAP-TLS connection
1Load and import the required certificate and key (page 7).
2Ensure the AmbiCom wireless USB dongle is inserted in the USB port on the cardiograph.
3In the Wireless LAN Adapter Settings section, touch Configure.
The NetUI utility appears, displaying available networks in the Wireless Information tab.
The list refreshes automatically.
4Select the SSID of the desired wireless network and touch Connect. Scroll the list if
needed.
5Touch the Encryption dropdown arrow, and select the desired method: AES or TKIP.
6Touch the Authentication dropdown arrow and select WPA or WPA2.
7In the 802.1X Authentication section, touch the EAP type dropdown arrow and select
EAP-TLS.
8Touch Properties.
The Authentication Settings dialog box appears, without details about the certificate.

Configuring Wireless Adapter Settings
16 PageWriter TC20 Wireless LAN Installation Instructions
9Touch Select.
10 In the Select a Certificate dialog box, select the certificate, and touch OK.
The Authentication Settings dialog box appears again, showing details about the selected
certificate.
11 Touch the Validate Server check box to clear it, and touch OK.
12 In the Wireless Network Properties dialog box, touch OK.
13 When prompted to log on, provide the certificate user name and domain.
14 Touch OK in the top right corner of the window.

Step 3. Configuring Network Connection Settings
PageWriter TC20 Wireless LAN Installation Instructions 17
The Wireless Information tab Status field refreshes and should show that the cardiograph is
connected to the selected network and give an indication of signal strength. Verify you are
connected to the desired network.
15 Touch OK to close the window and exit the utility.
Configuration is complete. Proceed to “Step 4. Restarting the Cardiograph” on page 18.
Configuring a WEP Connection
This option uses a network key and a key index.
To configure a WEP connection
After selecting the SSID as described on page 10, select the following options in the Wireless
Network Properties dialog box:
1Touch the Encryption dropdown arrow, and select the desired method: WEP.
2Touch the Authentication dropdown arrow and select Open.
3Type the network key and the associated key index (0, 1, 2, or 3) in their respective fields.
4Ensure the The key is provided automatically check box is clear.

Configuring Wireless Adapter Settings
18 PageWriter TC20 Wireless LAN Installation Instructions
5Touch OK.
The Wireless Information tab Status field refreshes and should show that the cardiograph is
connected to the selected network and give an indication of signal strength.
6To specify multiple networks to which the cardiograph can connect, repeat step 5 on
page 11 and the steps in this procedure as often as needed to configure the necessary set of
networks.
Configuration is complete. Proceed to “Step 4. Restarting the Cardiograph” on page 18.
Step 4. Restarting the Cardiograph
You must restart the cardiograph for the new wireless settings to be applied.
To restart the cardiograph
1Press and hold down the On/Standby button ( ) for five seconds to shut down the
cardiograph.
2Press the power button again to restart the cardiograph.
The new wireless settings are applied and configuration is complete.