Welch Allyn CardioPerfect Workstation Exercise ECG Module - User Manual - Manual (Page 67)

CardioPerfect Workstation
Exercise ECG Module - User Manual
DIR 80012335 Ver. E 67 / 83
3. If a Portable or MD recorder is used, insert one end of the optical fiber into the optical
output receptacle at the back of the recorder and insert the other end into the
receptacle on the Unilink.
When you connect the USB Interface to a USB port for the first time, the system will tell you
that it has found new hardware and it is trying to locate the drivers for it, provided that you
have executed the installation of the drivers from the installer menu, the drivers will be
detected automatically and correctly setup (this may take a few minutes).
If, at a certain moment the USB interface is inserted into another USB port, the driver setup
will be repeated automatically.
After you have connected the Interface and installed the driver you need to configure Welch
Allyn CardioPerfect Workstation so that it uses the USB port.
To configure Welch Allyn CardioPerfect Workstation:
1. Start Welch Allyn CardioPerfect Workstation and log in as Administrator.
2. In the File menu, click Settings, click Exercise ECG, and click on the Recorder tab.
3. From the Port list, select Unilink USB (This is the default setting after a new
installation).
11.3 R-wave triggering Interface capabilities
The Welch Allyn PRO Link interface cable provides both a TTL and an Analog representation
of the QRS complex.
The analog output, rendered on port 1, is an approximate representation of the signal
on lead II. The analog signal output is dependent on the input stimulus and uses a 1
V/mV conversion. Stimulus ranges from 0 volts to 5 volts peak to peak.
The TTL output, rendered on port 2, is a digital signal 5V amplitude with a duration of
120ms. It is triggered by the rising edge of the R-wave. This can by used to interface
to devices for R-wave triggering. The delay between R wave peak and TTL output
pulse is typically between 30 and 50 ms.
It is the responsibility of the user to ensure the compatibility of the output with their device and
its intended use.
WARNING
This output is not suitable for cardioversion synchronization.