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Troubleshooting: Accessories
LED
ISSUE
TRY
QRE – All LEDs
Flashing
Unplug the INPUT cable, wait 5 seconds, and plug it back in. If the condition
persists the unit needs to be replaced.
Any RJ45
Green LED is off
between
NU/QRE/CU
Link is down
CU is not connected or cannot be seen. Check QRE to CU cable and/or CU. CU may
be checked by plugging directly to back of NU or QRE Output with LAN test cable.
Check NU – QRE – CU cables lengths (must not exceed 100 meters each, and use
of patch panels may reduce maximum length).
CHAPTER 7. TERMINOLOGY
Active DAS
. A powered DAS (Distributed Antenna System) Network.
Attenuator
. An electronic device that reduces the amplitude of a signal.
Cel-Fi WAVE
. A cloud portal system for managing Cel-Fi systems
Coverage Unit (CU)
. The Cel-Fi unit that broadcasts cellular service where coverage is needed (Service
signal).
Donor Antenna
. Receives and transmits signals with the existing cellular network.
External Antenna
. Antennas external to a device and connected with RF cables.
Gain, or System Gain
. The amount of amplification that may be applied to the source signal.
IBwave
. A solutions planner that allows you to perform complete RF distribution designs with hardware
such as Cel-Fi products.
Interference
. Locations usually between multiple cell sites that may be interfering with each other and
reducing network capacity.
Isolation
. Separating donor-service antennas to limit feedback potential.
MIMO
. Multiple-Input Multiple-Output antenna scheme that improves capacity. Cel-Fi QUATRA is a 2x2
MIMO system, using two antennas per NU or CU.
Network Unit (NU)
. The Cel-Fi unit that connects to the existing cellular network (Donor signal).
Pilot Pollution
. See Interference.
PoE (Power over Ethernet)
. To pass electrical power along with data on Ethernet cabling.
QMA connector
. A spring loaded quick connect small-size RF connector used to join coaxial cables.
QMT (Cel-Fi QUATRA Management Tool) (
coming soon
)
. A Smartphone App and cloud-based
management system that allows local and remote management of Cel-Fi QUATRA systems.
QRE (Cel-Fi QUATRA Range Extender)
. Allows Cel-Fi QUATRA NU to CU interconnect cable lengths to
200m.
