Individual MIDI devices (such as interfaces, keyboards, sound modules, drum machines etc) may be connected together to create a MIDI network, typically to allow one device to "play" another, or to allow synchronised playback of a MIDI sequence.
MIDI connections for a typical MIDI keyboard
A MIDI DIN plug
A MIDI interface takes the form of at least one or two, often three 5-pin DIN sockets called Ports (identical physically to the those used with domestic Hi-Fi) situated on the casing (usually the rear) of a MIDI device. They will be marked In, Out, and Thru.
All MIDI devices have a MIDI interface containing at least 1 In and 1 Out port. Some MIDI devices have multiple In and Out ports, such as computer MIDI interfaces.
Here are some devices that have MIDI interfaces ...
MIDI cables carry MIDI messages in one direction only. Therefore 2 cables are required to carry messages to and from a device.
Cables terminate with so called 5 Pin Din plugs. Cable length between devices should be restricted to a maximum of 15m to ensure data integrity. It is also advisable not to daisy-chain, via their Thru ports, more than three devices.
View our MIDI system diagram next.