Teledyne LeCroy WaveExpert series Automation Manual - Manual (Page 278)

A PPENDIX - A DCOM Setup
Prepare the Oscilloscope – Case 3: Windows Embedded
To prepare the oscilloscope, we first need to open the XP firewall.
Note:
Please be advised that after some research we have discovered that the XP Firewall does not work well with DCOM (if at all). One of
the problems is that a first connection is established using the default endpoint (port 135), and when a second port is opened it’s forced into
the 3000-4000 range. Also, XP's SP1 firewall does not allow specified port ranges.
1. Click
Start Æ Control Panel. Double-click Network Connections and then Local Area Connections.
2. On the
Local Area Connection Status
dialog, the General tab should be shown.
3. Now, click the Properties button and the Local Area Connection Properties dialog is shown. Click the
Advanced
tab and make sure the Protect my computer and network by limiting or preventing access to
this computer from the Internet
check-box is un-checked.
• If the PC and Oscilloscope ARE in the same NT domain, this is a User Level configuration and there’s
no need to create a new account
on the oscilloscope to allow DCOM connections.
• If the PC and Oscilloscope ARE NOT in the same NT domain, this is a Share Level configuration and
you must create
a new account on the oscilloscope to allow DCOM connections. The following topic
shows you how.
Creating a User Account on Oscilloscopes Running Windows Embedded
Note: If the PC and the Oscilloscope reside on the same NT domain, there is no need to create a user account on the Oscilloscope and this
topic may be skipped.
If the PC and Oscilloscope do not reside on the same NT domain, a user account must be created on the
Oscilloscope. This user account must match the username and password of the one on the PC (the same one on
the PC, with administrative rights, etc.). Create a new user account on the oscilloscope as follows:
1. Click
Start
Æ Settings Æ Control Panel. Double-click on User Accounts.
2. Again, when creating this new account, make sure it matches the username and password of the one on the
PC (the same one on the PC, with administrative rights, etc.).
3. Select
Limited
, click Create Account, and Change an Account.
4. Select and highlight the account name just entered and click Create a Password. Enter the same password
from the PC account twice and click the Create Password button.
Note:
This new account is created to provide DCOM access to the oscilloscope and is not necessarily needed for any other use.
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