Airmar Xsonic pigtail XDCR wiring block adapter.
The xSonic Pigtail Transducer Wiring Block Adapter allows you to connect a transducer without a connector (bare wires) to a display requiring a xSonic (9-pin) connection.
An xSonic Pigtail Transducer Wiring Block Adapter is an accessory used to make a transducer (often for sonar or fishfinder systems) with one type of connector compatible with another system or device - usually a modern chartplotter or fishfinder from brands such as Lowrance, Simrad or B&G, which use the xSonic connector standard.
Here is a simple explanation of the components:
xSonic: This is the name of a connector standard for sonar transducers used by brands such as Simrad, Lowrance and B&G.
Pigtail: Refers to a cable with a connector on the end, usually a short “tail” with exposed wires or some other connection.
Transducer: A sonar or depth sounder that transmits sound waves and collects reflections to provide underwater information.
Wiring Block Adapter: A connector block that converts the wiring of an older transducer (usually with loose wires or another connector) to the proper pin configuration for an xSonic input