User manual

IPC-610 User Manual 32
4.2.2 Switch Settings
The alarm board is designed to connect with up to 7 fans. User can set the fan num-
ber by adjusting the switch, SW1, on the alarm board.
Table 4.9: J1, External Buzzer
Pin 1 Buzzer Pin 2 +5 V
Table 4.10: SW1, Fan number select switch
Pin 1 GND Pin 5 GND
Pin 2 FAN_SEL1 Pin 6 FAN_SEL3
Pin 3 GND Pin 7 GND
Pin 4 FAN_SEL2 Pin 8 RESET
Table 4.11: SW1, Fan number setting
Fan Number SW 1-1 SW 1-2 SW 1-3 SW 1-4
0 OFF OFF OFF OFF
1 ON OFF OFF OFF
2 (default) OFF ON OFF OFF
3ON ON OFF OFF
4OFFOFFON OFF
5 ON OFF ON OFF
6 OFF ON ON OFF
7ON ON ON OFF
Note! Please connect the fan connectors in the correct sequence: If two fans
are set on SW1, the correct method to connect them into connectors
FAN1 and FAN2. If the two fans are connected to other fan connectors,
out of sequence, such as FAN1 and FAN3 or FAN2 and FAN3 or FAN3
and FAN4, then the alarm will not function correctly.