OPERATION / SERVICE MANUAL - Midmark

Thin Client Configurations
2
IQmark Digital Spirometer Operation Manual
If you have a thin client environment, you can install the software on the Terminal Server
and operate the IQmark Digital Spirometer through a thin client terminal.
There are two thin client configurations. The IQmark Virtual Channel Solution is
appropriate when using Microsoft Windows based PCs as clients. In this configuration,
you can use either the USB or serial port versions of the IQmark Digital Spirometer
product in high latency, limited bandwidth network configurations. The following section
describes the virtual channel solution. The second possible configuration is to use the
serial port version of the IQmark Digital Spirometer product and connect it to client
devices via COM port mapping. This configuration is appropriate when using non-
Windows thin client devices on low latency high-speed networks. The section entitled
Thin Client Using COM Port Mapping discusses this solution.
Setting up any application on a network environment typically requires special access
rights and knowledge of the network. Please have your network administrator install and
setup the software to fit your office environment.
Thin Client Using the IQmark Virtual Channel Solution
The IQmark Thin Client Virtual Channel software provides the following advantages over
COM port mapping.
1. Operation over high latency, low bandwidth, high loss networks. For Microsoft
Terminal Services, the virtual channel provides a 10 to 1 improvement in
performance in latency tolerance over COM port mapping. For Citrix ICA the
performance improvement is approximately 40 to 1 in latency tolerance.
2. No COM port mapping is required.
3. It is possible to use the USB versions of the Spirometer module.
4. Improved device auto-configuration and diagnostics.
NOTE: The IQmark Virtual Channel Solution has specific requirements for
computer hardware, software and network performance. System
administrators must read the document entitled Application Note: Using
the IQmark Thin Client Virtual Channel Software before installing,
configuring and using this software in a thin client environment.
The following block diagram describes the IQmark Virtual Channel Solution. In this thin
client environment, the client computers must be running Windows XP SP2 or Windows
Vista.