User`s manual

170 INT 120 00
93
Description of Display and Operational Elements
Location of
elements
Location of LEDs and operating elements:
1 LEDs
2 TST button
3 Slide switch for end identification
LED Status LED display status
END
NXT
BA
RC
RD
WGWR
TST
1
2
3
LED Status Meaning
BA green Bus active
Data telegrams are being transmitted.
off No data telegrams are being transmitted.
RC green Remote Bus Check.
Incoming remote bus correctly connected and bus reset of bus
master inactive.
off Incoming remote bus not connected or incorrectly connected or bus
master bus reset active.
RD red Remote Bus Disabled.
Extended remote bus is switched off.
off Extended remote bus is not switched off.
WG On (red) Light quantity at the receiver of the incoming remote bus is less than
of the threshold value (- 26 dBm).
WR On (red) Light quantity at the receiver of the outgoing remote bus is less than
of the threshold value (- 26 dBm).