U590 2.27E7区：RS232 0.u 2CPE m6 2.28E8区：RS485 U47 6 7 MAX485CPA 15 15 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 10 11 11 12 12 13 13 14 14 15 15 16 16 D D C C B B A A Title Size Number Revision A0 Date: 2006-7-1 Sheet of File: F:\Inovation\.\STAR.SCHDOC Drawn By: 1A 1 2A 6 1B 2 2B 7 VCC 8 GND 4 1Y 3 2Y 5 SN75452BP U61 1A 1 2A 6 1B 2 2B 7 VCC 8 GND 4 1Y 3 2Y 5 SN75452BP U58 1A 1 2A 6 1B 2 2B 7 VCC 8 GND 4 1Y 3 2Y 5 SN75452BP U59 1A 1 2A 6 1B 2 2B 7 VCC 8 GND 4 1Y 3 2Y 5 SN75452BP U60 R9 R10 R11 R12 R13 R14 R15 R16 JP101 R9 R10 R11 R12 R13 R14 R15 R16 JP100 R9 R10 R11 R12 R13 R14 R15 R16 JP98 R0 R1 R2 R3 R4 R5 R6 R7 R0 R1 R2 R3 R4 R5 R6 R7 DIG0 DIG1 DIG2 DIG3 DIG4 DIG5 DIG6 DIG7 VCC VCC VCC VCC 2．27 E7 区：RS232 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 10 11 11 12 12 13 13 14 14 15 15 16 16 D D C C B B A A Title Size Number Revision A0 Date: 2005-12-19 Sheet of File: F:\Inovation\.\STAR.SCHDOC Drawn By: R1 IN 13 R2 IN 8 T1 IN 11 T2 IN 10 GND 1 5 V + 2 V - 6 VCC 1 6 R1 OUT 12 R2 OUT 9 T1 OUT 14 T2 OUT 7 C1+ 1 C1 - 3 C2+ 4 C2 - 5 MAX202CPE U46 C70 0.1uF C72 0.1uF 0.1uF C75 0.1uF C76 C71 0.1uF TXD RXD VCC 1 2 3 4 5 6 7 8 9 11 10 J1 2．28 E8 区：RS485 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 10 11 11 12 12 13 13 14 14 15 15 16 16 D D C C B B A A Title Size Number Revision A0 Date: 2005-12-19 Sheet of File: F:\Inovation\.\STAR.SCHDOC Drawn By: 2 3 4 VCC 8 1 6 7 GND 5 D R A B MAX485CPA U47 RO RE/DE DI VCC R119 120 A B