SDT-S-112DMR SDT-S-112DMR,000 SDT-S-112DMR,003 SDT-S-112DMR,601 SDT-S-112DMR.601 SDT-S-112DMR601 SDT-S-112DRM SDT-S-112LMR SDT-S-112LMR 通信继电器 SDT-S-112LMR（RO)