JA External Signaling (with RY-ES, IER-2, and TAR-3) Updated on April 15th, 2026 On this page With RY-ES and IER-2: With IER-2 and TAR-3: With RY-ES and IER-2:DownloadWith IER-2 and TAR-3:Download JA-2MECD, JA-2HCD, JA-2MCD Instructions (English + Multi-Lingual) JA-2SD Instructions JA-DAC Instructions & Technical Specifications JA-DGC Instructions and Technical Specifications JDW-C Technical Specification JA External Signaling (with RY-ES, IER-2, and TAR-3)