User's Manual Part 2a

Installing the BSR Hardware Installation Guide
4-20 Airspan Networks Ltd. 02030311-05
4.7. Connecting BSR to Power
The BSR is powered by the SDA or BSDU (depending to which unit the BSR is
connected). The power is supplied through the BSR’s 15-pin D-type port, which is
connected to the SDA or BSDU.
The BSR’s power requirements are described in Table 4-5.
Table 4-5: BSR Power Requirements
Parameter Value Comment
Voltage:
• Minimum
• Maximum
48 VDC nominal
• 30 VDC
• 55 VDC
Voltage is received from the
BSDU or SDA
Maximum Amperes: 500 mA
Warning: If you are using an external antenna, ensure that you connect the
antenna before connecting the BSR to the power source.
Note: For details on connecting the SDA or BSDU to the mains power supply,
see Chapter 5, “Installing the BSDU” and Chapter 9, “Installing the SDA”.