Structure and functions
3
NK8237 hardware
16
Building Technologies
A6V10403182_a_en
Fire Safety & Security Products
30.09.2014
3.1.3
Internal jumpers
1
2
3
X1
X2
X3
X101
X102
X103
X104
X105
X111
4
Internal DIP switch and jumpers (NKM8001-A2 mainboard)
Item
Name
Description
1
S101
DIP-Switches
2
S1
Reset button
3
S2
Tamper switch
4
X115
When closed, it disables the box tamper alarm.
3.1.4
Ethernet interfaces
The NK8237 main board is equipped with two Ethernet interfaces. The two RJ-45
connectors also include 2 LEDs (yellow and green) reporting the LAN status as
follows:
Yellow LED: if on, a 100 Mbps link is active.
Green LED: flashing when data is received or transmitted.