C1 C2 VCC2 2 27 AC2 (MAKE NO CONNECTION) 22μF 0.1μF D1 3 26 ISO CC1 B D2 4 25 B GND1 5 24 ISO RO DRV 120Ω FS MAX845 MAX487 A A 6 MAX1487 23 R6 74HC86 SD 7 22 ISO DI IN SH OR EQUIVALENT VCC3 ISO DE IN R4 SHIELD R1 8 21 (OPTIONAL) DI DRIVER INPUT DI 9 20 ISO COM1 NOTE: RESISTOR R7 PROTECTS VCC4 ISO DI
AC1 (MAKE NO CONNECTION) 22 F 0.1 F V CC2 2 23 AC2 (MAKE NO CONNECTION) D1 3 22 ISO CC1 D2 ISO RO DRV 120 Y 4 21 120 D DI GND1 5 20 A A Z FS 6 X X X 19 B B SHIELD (OPTIONAL) SD M MMA Z Z 74HC86 7 18 120 B OR EQUIVALENT V CC3 8 17 Y Y 120 R RO DI R1 DI 9 16 ISO COM1 R5, 100SH1 DI´ V R4 SHIELD (OPTIONAL
