User Manual

5.2 Alpha 500/520 Internal Assembly

(Fig. 11) Internal Parts Assembly

1) RX module 8) Contact output seat (CN3)

2) Power fuse (AC) 9) Low voltage warning fuse (LV)

3) Spare fuses & jumpers 10) Pushbutton #3 and #4 fuse

4) ID code dip-switch 11) AC power input seat (CN2)

5) Contact relay LED displays 12) Output cable mouth

6) MAIN fuse 13) Reserved output cable mouth

7) Pushbutton #1 and #2 fuse 14) System status LED display

FUSE