Operation Manual
Chapter 5
Autotest
50
5.9. Calibration
A field calibration must be performed if:
During the last 7 days no calibration has been performed. The user receives a message,
informing him that a field calibration is required.
The test adapter has been changed.
A patch cord has been changed.
5.9.1. Twisted Pair Cabling
1. Use Arrow Keys to navigate to "Calibration" and press Enter to open job list.
Illustration 1 5.9.1. Ready screen
Calibration requires one patch cord each for the Display handset (DH) and the Remote
handset (RH).
NOTE:
It is imperative not to mix up the corresponding patch cords for Display handset (DH) and
Remote handset (RH), and they must also be used for the cable test. We recommend to
mark the patch cords accordingly.
2. Connect Display handset (DH) and Remote handset (RH) with patch cord for
Remote handset (RH), as shown on the display. Remember which connection of
the patch cord is connected to the Remote handset (RH).
Illustration 2 5.9.1. Patch Cord (RH)
3. Use soft key to initiate calibration. The Remote handset (RH) indicates
calibration, and a progress bar shows the status.