ZyXEL Communications XGS-4528F, User Manual, Page: 44 / 491

Chapter 3 Hardware Overview
XGS-4526/4528F/4728F User’s Guide
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1
Use a screwdriver to loosen the terminal block captive screws.
2
Connect one end of a power wire to the Switch’s RTN (return) pin and tighten the
captive screw.
3
Connect the other end of the power wire to the positive terminal on the power
supply.
4
Connect one end of a power wire to the Switch’s -48V (input) pin and tighten the
captive screw.
5
Connect the other end of the power wire to the negative terminal on the power
supply.
6
Insert the terminal block plug in the Switch’s terminal block header.
3.2.6 External Backup Power Supply Connector
The Switch supports external backup power supply (BPS).
The Switch constantly monitors the status of the internal power supply. The
backup power supply automatically provides power to the Switch in the event of a
power failure. Once the Switch receives power from the backup power supply, it
will not automatically switch back to using the internal power supply even when
the power is resumed.
3.2.7 Console Port
For local management, you can use a computer with terminal emulation software
configured to the following parameters:
• VT100 terminal emulation
• 9600 bps
• No parity, 8 data bits, 1 stop bit
• No flow control
Connect the male 9-pin end of the RS-232 console cable to the console port of the
Switch. Connect the female end to a serial port (COM1, COM2 or other COM port)
of your computer.