- 4 -
1. The switch uses 100-240V, 50/60Hz AC, and make sure that both power supply and grounding
are normal before power on.
2. After power on, please check the switch's power indicator (Power) is on, and if so, it indicates that
the power supply is connected properly.
3. Do not place heavy objects on the top of the switch.
DC Power
Warning:
Before wiring the DC plug or connecting power to the switch, ensure that power to the
feed lines are turned off at the supply circuit breaker or disconnected from the power bus.
Warning:
This unit is intended to be supplied by a IEC/UL listed DC power source suitable for
whose input is rated DC -48 to -60V, 3.0 A.
1. The GTL-2872 switch supports the option of connecting an external -48 to -60 VDC power source
to its DC terminal block.
2. Connect the -
48 VDC power feed wire to the DC plug “-” pin.
3.
Connect the ground/return wire to the DC plug “+” pin.
3. Logging on to the equipment
1. Connect the RJ-45 interface cable of a switch with a computer using a network cable.
2. Set the TCP/IP properties of the computer, see the
Appendix: Setting up your computer
.
3. Logging on to the equipment: Open a browser and type 192.168.1.1 in the address bar, and then
press Enter; in the pop-up login interface, enter the factory logon username "admin", password
"admin" and click OK.
