Initiated Built-In Test (Ibit) - R&S M3SR 4100 Series Operating Manual

M3SR Series 4100

6.2.4 Initiated Built-in Test (IBIT)

The Initiated Built-in Test (IBIT) is the most profound of the built-in tests, running without any
additional equipment like special loop cables etc. IBIT should be completed within five sec-
onds.
To start the IBIT navigate to menu Radio MTC 1/7 (see sect. 3.4 Radio Maintenance and
Figure 6.3) and press the softkey 'Start IBIT'.
A message box comes up indicating the start of the IBIT and after finishing another message
box comes up indicating the end of the IBIT.
If the IBIT detects an error, another message box comes up indicating the error. In this case
the BIT Status displayed in menu Radio MTC 1/7 (see sect. 3.4 Radio Maintenance) will also
show 'Error' (see Figure 6.3) and the GO LED on the radio front panel and the GO LED on a
connected control unit will be switched off.
To get more details about the detected error, check the radio error list (see sect. 3.4 Radio
Maintenance and Figure 6.5).
The IBIT can be started only from Preset Page 0. Once started, the IBIT cannot be in-
terrupted and during IBIT no other operation is possible.
Operating Manual 6175.4760.02 – 01
Troubleshooting
6.9