Structure and functions
4
NK8237 hardware
21
Building Technologies
A6V10854379_a_en
CPS Fire Safety
25.01.2019
1
2
PW
MAINS
AC/DC
LOW BATT
BATT FUSE
DF8090 front panel
Item
Description
1
LEDs.
2
I
2
C connector to I/O modules.
See Figure
NK8237 power supply
NK8237 hardware installation [➙
23]) for
the power supply connections.
6.1.7
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.
2
Back
1
Ethernet connectors
Item
Description
1
Ethernet 1
2
Ethernet 2