Abstract: A system for communicating through a hanger can include an alignment manifold having upper and lower terminals positioned on opposite respective sides of the alignment manifold, each of the upper terminals being in communication with a respective one of the lower terminals. A downhole line connector can be configured to connect to downhole lines, the downhole line connector including terminals aligned with the lower terminals of the alignment manifold. A method of communicating through a hanger can include connecting an alignment manifold to the hanger, the hanger being configured to suspend a tubular from a wellhead assembly, and connecting a downhole line connector to the alignment manifold.

Abstract: A well tool can include a closure member having open and closed positions, a seat having a flow passage blocked by the closure member in the closed position, and a line extending through the seat. A communication method can include positioning a conduit in an interior of a well tool, and conducting a signal via the conduit between annular structures surrounding a longitudinal flow passage of the well tool. A well system can include a well tool connected in a tubular string, a flow passage of the tubular string extending through the well tool, the well tool including a closure member having open and closed positions, in which the closure member respectively permits and blocks flow through the flow passage, an annular cavity surrounding the flow passage, and a line, the closure member and the line being positioned in the annular cavity in the open position.

Abstract: A well tool can include a closure member having open and closed positions, a seat having a flow passage blocked by the closure member in the closed position, and a line extending through the seat. A communication method can include positioning a conduit in an interior of a well tool, and conducting a signal via the conduit between annular structures surrounding a longitudinal flow passage of the well tool. A well system can include a well tool connected in a tubular string, a flow passage of the tubular string extending through the well tool, the well tool including a closure member having open and closed positions, in which the closure member respectively permits and blocks flow through the flow passage, an annular cavity surrounding the flow passage, and a line, the closure member and the line being positioned in the annular cavity in the open position.

Abstract: A system for communicating through a hanger can include an alignment manifold having upper and lower terminals positioned on opposite respective sides of the alignment manifold, each of the upper terminals being in communication with a respective one of the lower terminals. A downhole line connector can be configured to connect to downhole lines, the downhole line connector including terminals aligned with the lower terminals of the alignment manifold. A method of communicating through a hanger can include connecting an alignment manifold to the hanger, the hanger being configured to suspend a tubular from a wellhead assembly, and connecting a downhole line connector to the alignment manifold.