Document: LT0732 QE20 Fibre Networking User Manual
Issue 1.0 24 May 2023 Page 4-7
The VIF has completed dialling the phone number on
the WIP line.
The VIF has “hung up” the phone on the PA line
The VIF has “hung up” the phone on the WIP line
Some examples of what you should expect to see on this log are given below.
Example power-up sequence:
0001 VIF Software V1.04
0001 DIP SWITCH ADR 01
Example call out on PA line:
3602 PA FWD On
36D0 PA Dialling 8
3735 PA Dial Complete
38CA PA FWD Off
38ED PA REV On
Note: FWD On indicates voltage on the line in an idle condition. REV On indicates a
connected call.
Example call answered on WIP line:
381B WIP Ring
382A WIP Answer
383A WIP FWD On
384B WIP FWD Off
385E WIP REV On
386F WIP FWD On
3881 WIP FWD Off
3894 WIP FWD On
38A5 WIP REV Off
38B8 WIP FWD Off
38DC WIP REV On
Note: FWD / REV alternate rapidly until the adapter discovers the line has been
answered. The final connected state should be REV On, indicating the call
connected state.
Flash Programming/Firmware Update
New versions of firmware for the VIF microprocessor may become available from
time to time. Table 4-11 below lists the versions currently released. These versions
will be supplied with a firmware file such as SF0446_V1.05.mot, a utility
vig_avrsp.exe, and some more files. Extract these files to a folder on your PC.
Connect an RS232 serial port of your computer to the DIAGS / PROGRAMMING
(J8) port on the VIF module using a straight-through 9 pin male to 9 pin female
RS232 cable (such as LM0138). Insert both LK1 and LK2 on the VIF module in the
ENABLE FLASH PGM position and power up the VIF.
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