10
Document 52017 NION-MXL Instruction Manual Rev. A 10/10/02
Figure 1-4: NION-232B LED Status Information
1.8 NION-232B Operation
NION-232B LEDs
Five LEDs on the mother board of the NION-232B provide information about module operation. The table below
explains the possible conditions.
LED
Color
Description
Status
Green
This LED provides information on network communication and node
binding by one of the three modes listed below:
On or Off solid - NION is not bound.
Flashing slow - NION is bound and communicating.
Flashing fast - NION is bound but not communicating or the
packet was lost.
Unbound
Yellow
This LED provides information on node binding by one of the three
modes listed below:
Off - NION is bound.
Flashing - NION is not bound.
Solid - NION is in a fault condition or the PROM chip is not
installed.
Net Receive
Green
Flashes once when receiving a message from the Echelon network.
Serial Receive
Green
Flashes once when receiving an event message from the fire panel.
Serial Fail
Yellow
This LED provides information on serial communication by the two
modes listed below (unless otherwise noted for a specific interface):
On - Serial communication failure with the attached fire panel.
Off - Serial communication is OK.
NOTE: Refer to Figure 1-1: NION-
232B Board Layout for the position
of each of the LEDs listed above.
Technical Manuals Online! - http://www.tech-man.com
firealarmresources.com
