Siemens NK8232

Structure and functions
4
NK822x hardware
20
Building Technologies A6V10062437_a_en
Fire Safety & Security Products 30.06.2013
4.1.3 Internal jumpers
The internal jumpers are used for:
 JP3: when closed, it disables the box tamper alarm.
 JP6: when closed, it enables the LON termination resistor (100 Ω) for a doubly
terminated bus topology.
1 2 3 4 5
NK822x internal DIP switch and jumpers
Item Description
1 DIP-Switches
2 Reset button
3 JP6: enable LON resistor.
4 Tamper switch
5 JP3: disable tamper or connect to external tamper.
4.1.4 Serial interfaces
NK8223 / NK8225: although the maximum number of serial lines is 4, they are not
always used. There are two serial lines available on the base module and two on an
expansion module.
NK8222: this model is equipped with two serial lines only available on the base
module.