X421/X422接口就这么多信号啊，LZ你说的是哪个信号？
1 PENC Encoder power supply
2 MENC Encoder power supply ground
3 AP Incremental signal for track A
4 AN Inverse incremental signal for track A
5 ENDATDAT Data signal, EnDat interface
6 BP Incremental signal for track B
7 BN Inverse incremental signal for track B
8 XENDATDAT Inverse data signal, EnDat interface
9 PSENSE Remote sense encoder power supply (P)
10 RP Reference mark signal/zero pulse
11 MSENSE Remote sense encoder power supply (N)
12 RN Inverse reference mark signal/zero pulse
13 M Inner shield ground
14 ENDATCLK Clock signal, EnDat interface
15 XENDATCLK Inverse clock signal, EnDat interface