
1) Networking hardware 2) Telephony equipment
Found on
https://www.crosswordclues.com/clue/patch-panel

A patch panel, patch bay, patch field or jack field is a device or unit featuring a number of jacks, usually of the same or similar type, for the use of connecting and routing circuits for monitoring, interconnecting, and testing circuits in a convenient, flexible manner. Patch panels are commonly used in computer networking, recording studios, an...
Found on
http://en.wikipedia.org/wiki/Patch_panel

A board consisting of rows of sockets into which plugs can be connected to route sound signals or power for lighting circuits.
Found on
http://www.encyclo.co.uk/local/20447

A series of jacks which has connections for most of the inputs and outputs of the console, console sections, tape machines and other pieces of equipment.
Found on
http://www.encyclo.co.uk/local/20447

A patch panel is a device found in a structured cabling network to provide a flexibility point between installed cables servicing work area positions and the active voice or data systems to which they are to be connected. They are usually installed in a rack or cabinet strategically located within a premises. The circuitry may be similar or preferably identical to that found in the wall outlets and each panel would normally offer 16 or 24 ports for each 44mm of rack space.
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Found on
http://www.encyclo.co.uk/visitor-contributions.php

A panel which allows different circuits to be connected to dimmer channels.
Found on
https://hdos.org.uk/gen/glossary.html

The board on which lighting circuits are connected to dimmers.
Found on
https://www.encyclo.co.uk/local/20411
No exact match found.