I remember seeing OPM cards in use at Terminal Control when it was at West Drayton but when we at Farnborough started OPM, we just had to log on via a PC either in Approach or in the tower.
Which was fine until the one in the tower 'crashed' and we couldn't restore the software for OPM. On asking NATS for help we were told there was no funding for OPM 'support'; all funding was used on setting it up at airports, so you just had to 'log in' on the approach PC then rush upstairs quickly, remembering to go for a pee before you logged in.
Last edited by chevvron; 19th Jan 2018 at 03:29.