屏蔽信号电缆RS485-4*2*1.0 信号电缆RS485-4*2*0.75 RS485 3*0.5+2*0.25PL 300/500V RS485 2*2*0.75+BVR 2*2.5+1*1.5 PTYA23-500V 铁路信号 JWBRS485-22 2*1.5 DMX512信号控制线 2*0.3 RS485-STP-2*2*22AWG WDJBRPYK42-3*1.5G RS485 2*2*0.75+BVR 2*2.5+1*1.5 ASTP-120Ω-2*2*1.0 PRVZP-1-LF-300V 6*0.5
