8
2. Panel Descriptions
2-1. Front Panel
Letter
Indicator/s
Description
A
POWER
Indicates power status.
See the table below for details on LED indicators.
B
BUSY
Indicates Flash writing status.
See the table below for details on LED indicators.
C
REF IN
Not used (unlit)
D
GPI
Not used (unlit)
E
RS-422 1 - 4
Not used (unlit)
F
RESET
Used to reset MFR-RULINK.
MFR-RULINK LED Indicators
Color
Type
Green
Red
Orange
POWER
Normal operation
Power alarm
BUSY
Normal operation
Communication alarm
(Lit until communication
established)
Writing to Flash.
IMPORTANT
Do not power off the MFR-RULINK while the BUSY LED is lit orange (writing to Flash,
max 2 minutes).
POWER BUSY REF IN
GPI
RS-422
RESET
2
1
4
3
MFR-RULINK
Remote Relay Unit
A
B
E
F
C
D
