Printed circuit board apparatus with optical switching

Details Printed circuit board apparatus with optical switching Printed circuit board apparatus with optical switching

1991-12-20

1993-03-23

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Signal isolator

25022711, G02B 2700

Patent

active

051967120

ABSTRACT:
A printed circuit board apparatus includes a handle which has an extension plate which extends into an optical switch so as to prevent communication between an optical emitter and optical receiver. To remove the printed circuit board apparatus from its associated rack housing, rotation of the handle is first required which moves the plate and which causes the detector to go HIGH and signal to a telecommunications system that the board is soon to be removed so that a graceful switch can be made from that board to a redundant copy thereof. The printed circuit board apparatus further includes a deflectable lever which contacts to ground the rack housing upon inserting the printed circuit board apparatus into its associated rack housing so as to provide electrostatic discharge protection. The apparatus further includes a face plate which has a generic configuration so as to potentially accommodate any user interface permutation required by any printed circuit board to be inserted into the housing, with application specific labels being applied to each face plate to cover up any holes not providing any user interface information to a craftsperson for the associated printed circuit board. An electromagnetic interference gasket shield is also provided around a circumference of each printed circuit board assembly located in the rack housing.

REFERENCES:
patent: 5010450 (1991-04-01), Werdin et al.

Affiliated with

Also associated with

Rating

Printed circuit board apparatus with optical switching does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Printed circuit board apparatus with optical switching, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Printed circuit board apparatus with optical switching will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1354279