User's Manual

SpiderCloud Radio Node - SCRN-200 Hardware Installation Guide
SpiderCloud Wireless, Inc.
20
Radio Node LED Boot Sequence
The radio node state machine is sequential and progresses in the following order:
State 0 -> State 1 -> State 2 -> State 3 -> State 4 -> State 5
A normal boot sequence transitions through all these states sequentially and the LED state transitions
accordingly. If the radio node fails to transition to the next state, the system restarts the boot sequence,
starting with State 0. You can determine the progress during the booting stages by observing the LED color
transitions. On failure, the last LED state will display the state that encountered the failure.
Table 3 shows the radio node boot sequence and corresponding LED behavior:
Table 3: Radio Node LED Boot Sequence
State LED Color Description Possible Failures and Actions
0. Power On/
Reset
Green
Flashing
This is the initial state on startup.
The radio node bootup is controlled
by firmware in this state.
It will go through a lamp test in this
state. A lamp test involves cycling
through all LED colors.
This state should be very short lived
and should transition to the next state
immediately.
A radio node should not stay in this
state indefinitely.
Note: Flashing Green is also used to
indicate a radio node that has been
administratively disabled. This can be
determined from the CLI.
1. DHCP Red
Solid
The radio node starts by sending out
a DHCP Request.
The radio node moves to the next
state (State 2) upon receiving a
DHCP response and an IP Address.
No DHCP Response, IP Address not
allocated.
Check cabling, DHCP Server
configuration.
2. Join Blue
Solid
The radio node has an IP Address
and sends a UDP Join request to
the Serving services node.
The radio node moves to the next
state (State 3) upon getting a JOIN
GRANT from the services node.
No IP reachability to the services
node.
Check IP network between radio node
and services node for routing issues.
3. TFTP Blue
Flashing
The radio node proceeds next to
download the operating system
image from the services node.
The radio node moves to the next
state (State 4) after the image has
been downloaded.
Failure to download TFTP image.
Check firewall between radio node
and services node.