Chapter 2 Specifications and Functions Arrangement of Terminals Terminals on the I/O board 2__ 1 2 3 4 2-3 ① C2 Y20 Y21 Y22 Y23 Y24 Y25 Y26 Y27 • ② S/S2 X20 • IO1 IO2 IO3 IO4 AGND AGND • ③ • • SLD SLD SEN- SEN+ SIG- SIG+ EXC- EXC+ ④ L1+ I1+ L1- AGND L2+ I2+ L2- FG AGND •