User's Manual

Street Light Bridge Integrator’s Guide 23
• Query the status of the Street Light Bridge module from the Segment
Controller
See
Testing Devices on page 72 for more information about using the Segment
Controller to verify Street Light Bridge installation.
Both Street Light Bridge LEDs are off initially, but the green power LED turns
on as soon as possible after you supply power to the device. The state of the
power LED depends on the state of the Street Light Bridge module:
• If the Street Light Bridge module is configured and running normally,
the power LED is on solid.
• If the Street Light Bridge module is not configured, but is otherwise
operating normally, the power LED flashes at a ½ Hz rate.
• If there is an error during initialization, or if the cause of reset was a
watchdog reset, the power LED flashes at a 4 Hz rate. You can manually
reset the device to clear the cause of reset.
Generally, although a rapidly flashing power LED indicates some problem, the
Street Light Bridge module operates normally if it can. Thus, you should be able
to query the error log and attempt to fix the problem.
The orange RF signal LED is used during installation to indicate whether the
Street Light Bridge module can establish RF communications with a nearby
Street Light Bridge module. If so, the RF signal flashes in a pattern that
represents the signal quality, as shown in
Figure 4.
Figure 4. RF Signal Quality as Represented by the RF Signal LED
The flashing pattern of the RF signal LED allows the installer to confirm good
RF communications with nearby Street Light Bridge modules without having to
return to the Segment Controller.
However, these RF communications could possibly be with an unrelated street
lighting network that uses a different
Segment Controller than the network into
which you installed the Street Light Bridge module. Thus, you should ensure
that the Street Light Bridge module can communicate with its Segment
Controller.
By default, both LEDs turn off after one hour. You can modify this timeout value
by updating the nciLedTimeout configuration network variable. Setting this
configuration network variable to zero disables LED shutoff (that is, the LEDs
remain on or flashing indefinitely).