Artesyn Centellis 4100 Installation and Use (2015) - Manual (Page 116)

FRU Installation
Centellis 4100 Installation and Use (6806800D82E) 118
Jumpers 2, 3, 6, and 9 determine the voltage to be detected by the relays.
Jumpers 4, 5, 7, and 8 define if the input signal is active high or active low. It is recommended
to leave them at the default position 1-2.
4.2.4.1.2 Rotary Switch Settings
The two rotary switches on the alarm board are used to set the SGA. The first byte of the shelf
address of the shelf FRU information will automatically be set to the SGA value.
Metal Pins Voltage
1 and 2 (default) 40 - 72V
2 and 3 5 - 12V
Metal Pins Signal
1 and 2 (default) Active high
2 and 3 Active low
Both jumpers (4 and 5 or 7 and 8) must always be in the same position in order for the input
to function properly.