Guys,
I mainly maintain some circuit-switched telephony equipment from the 70/80s that is still widely used is the network today. We've a fuse on the boards that fail, but we have to send the board off for expensive repair and long turn-around times when we could just change it ourselves. The issue is we can't find the fuse online anywhere and any old maintenance paperwork we've got doesn't give any information on them.
There's a pair of fuses in each component and we've run increasing currents through one with a scope to see break-times and think they're fast-acting, but does anybody have any idea where we'd be able to find components like this or a better idea about the fuse specifications?
The manufacturer was previously GPT/Plessey, but I don't think we can ask the current repair agent about it due to contractual stuff...
Thanks for any help.
I mainly maintain some circuit-switched telephony equipment from the 70/80s that is still widely used is the network today. We've a fuse on the boards that fail, but we have to send the board off for expensive repair and long turn-around times when we could just change it ourselves. The issue is we can't find the fuse online anywhere and any old maintenance paperwork we've got doesn't give any information on them.
There's a pair of fuses in each component and we've run increasing currents through one with a scope to see break-times and think they're fast-acting, but does anybody have any idea where we'd be able to find components like this or a better idea about the fuse specifications?
The manufacturer was previously GPT/Plessey, but I don't think we can ask the current repair agent about it due to contractual stuff...
Thanks for any help.