User's Manual

AirUnity 545 eNB 2.5GHz (B41) User Guide
UGD-D01127 Airspan Commercial and Internal Use 14
2.1.2 Digital Display (Touch Screen)
AirUnity 545 unit has 5.17” digital touch display to allow user to interact with the device and obtain
following information:
 Power on
 RN-UE status
 eNB status
 Number of end user(s) connected
 Location (GPS)
 Macro received signal level
 Best Location Indicator / Installation Instructions
 Unit Reset (hidden mechanism)
The user interface provides information to enable the end user to determine the optimal location for
AirUnity 545 operation.
2.1.3 SIM Card
AirUnity 545 provides an embedded SIM and a standard SIM card holder for the operator-provided
SIM, (installed during assembly). Security details are provisioned for the RN-UE in the same fashion
and generally on the same systems as for the Access UEs.
2.2 Synchronisation
AS545 contains an integrated GPS receiver, which is used for location timing and synchronisation.
2.2.1 Synchronisation Compliance
AirUnity meets the synchronization requirements as they are defined in TS 36.104 and TS 36.133.
Inter eNodeB synchronization is supported to enable both 1PPS frame synchronization for TDD
interference avoidance and frequency synchronization for ICI avoidance.
2.2.2 Frequency Accuracy
For Frequency stability, the same source is used for RF frequency and data clock generation. The
modulated carrier frequency of the eNodeB has an accuracy of ±0.05ppm observed over a period of
one subframe (1ms).
2.2.3 Phase Accuracy
Phase accuracy, (required for TD-LTE interference coordination and for both TD-LTE and FDD-LTE
when considering MBSFN or ABS) is 1µs or better.
2.3 Power Supply
AirUnity 545 is powered via an AC mains (line power) adapter which provides local DC power to the
unit:
AC/DC power convertor supports: