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4.1.5
4.1.5.1
Building Technologies
Fire Safety & Security Products
Note: In all modules, the first serial port can be configured as an RS232 interface
using connector COM1 or as an RS485 interface using connector CN4.
All lines are fully RS232 compliant and have EMC/ESD protection.
No galvanic isolation is provided; all serial lines have a common ground.
LON interface
PC/104 LON adapter
The NK822x processor board is equipped with a standard PC/104 interface for sys-tem
expansion. This is used for the LON add-on board.
Note: There are two revisions of LON interface boards, which have different LED
indications and different rotary switch settings.
Before checking the LEDs or setting the physical LON address with the rotary switch,
check the revision of the board you are using.
The 8-digit code (CD00251A or CD00251B) can be found on the rear of the internal
board in the upper left corner.
On the top of the NK822x module there are five LED's and 1 push button.
1
2
3
NK822x LN board diagnostic LEDs
4
5
6
Back
Structure and functions
NK822x hardware
A6V10062437_a_en
30.06.2013
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