Off-hook Switching

Introduction

In the past, disconnecting a telephone connection required the placement of the handset on the receiver.  This placement activated a mechanical switch which created the electrical disconnect.  The mechanical switch is subject to any spillage or debris clogging the contacts which will affect the reliability of the electrical on/off connection.  MEDER has developed several packages that use hermetically sealed Reed Switches that completely eliminate this reliability issue...

Full write-up: Off Hook Switching application

Features

• Contacts dynamically tested
• The reed contact can be sealed in the casing of the receiver
• Large sensing distances possible
• Magnet and switch are isolated by having the magnet mounted in the hand set and the reed switch mounted in the receiver
• Magnet is not affected by the environment
• Millions of operations reliably out performing the life of the telephone
• Not affected by rough treatment
• Reed contact never comes in contact with the outside environment
• Reed switch is hermetically sealed
• Surface mount, through hole and screw fastening mounting