NG800
User Manual for NRSW version 4.5.0.100
3.4.2. Default LED Indicators
The following table describes the NG800 status indicators.
Housing Label
Software Label
Color
State
Function
STAT
SYS
Shows the overall system state. This
could be derived from health indicators
such as:
– all services up and running
– overall throughput is normal
– CPU load is normal
– the supervisor
– . . .
– User application (state set by
user in SDK or container)
l
g
On
System operation state: normal
l
g
Blinking
System operation state: during startup
l
r
On
System operation state: emergency,
watchdog, failure
LINK
WAN
l
g
On
The hotlink connection is up.
l
g
Blinking
The hotlink connection is established
or changing the interface.
m
Off
The hotlink is disabled.
Table 3.3.: NG800 Status Indicators
3.4.3. Reset
NG800 does not have a built-in reset button. An external reset can be triggered as described below
(e.g. by installing an external reset button). The reset button has two functions:
1. Reboot the system:
Apply reset signal for at least 3 seconds to release a system reboot.
The reboot is indicated with the blinking STAT LED.
2. Factory reset:
Apply reset signal for at least 10 seconds to release a factory reset.
The start of the factory reset is confirmed by all LEDs lighting up for a second.
The RS232 receive input (RS232-RXD, Pin L1 of X48 connector) also serves also reset input. To
assert a reset condition, the input is tied to a positive voltage >5.0 V
DC
. It is possible to connect to the
battery (12 V
DC
, 24 V
DC
).
When the input is asserted for longer than 100 micro-seconds (a character time) the receiver de-
tects a break condition which is treated as reset active indication. Further processing of the signal is
performed by software.
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