User's Manual

Connecting third-Party External Antennas
69
Connecting GPS Antenna to BSDU
Warning: To avoid electrical or fire hazard, ensure that the connection to the GPS is
made prior to connecting the BSDU to the power supply.
Warning: A primary lightning protection device must be provided by the
operator/customer as part of an extra-building installation to ensure transient voltage levels
of less than 600 V maximum.
Warning: Changes or modifications to this equipment not expressly approved by
Airspan Networks Inc. could result in violation of Part 15 of the FCC rules.
Warning: This is a Class B product. In a domestic environment this product may cause
radio interference in which case the user may be required to take adequate measures to
correct the interference.
Connecting the GPS
The GPS antenna connects to the BSDU's 15-pin D-type port, labeled GPS, located on the
BSDU's rear panel, as shown below. The connection to the GPS is made through a 12-pin RS-
422 serial interface port that provides both communication and power interfaces.
BSDU rear panel showing GPS port