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Physical Descriptions NetVanta 3100 Series Hardware Installation Guide
20 Copyright © 2012 ADTRAN, Inc. 61700600L2-34A
DBU Interface (1700610L2 only)
The NetVanta 3130 has a DBU port on the rear panel to provide analog, V.90 dial backup. See
Table A-2 on page 25 for the DBU connector pinouts.
Factory Default Switch
The NetVanta 3130 has a factory default switch (labeled in Figure 7) on the rear of the unit. If the
factory default switch is pressed during bootup, the unit will stay in bootstrap mode. Since the unit has
no serial port, Telnet has been built into the boot code. The default IP address is 10.10.10.1.
If the factory default switch is pressed and held for 5 seconds after boot, the switch ports on the
NetVanta 3130 will default to 10.10.10.1 and all access policies will be removed from those interfaces.
If the factory default switch is pressed for 30 seconds, a default configuration will overwrite your
existing configuration and reboot the unit.
4 Switch Port Interfaces
Ports 1 through 4 are RJ-45 connectors used to access the 10/100Base-T Ethernet switch.
Power Connection
The rear panel has a 12V input for the DC power supply included in the shipment. Please refer to
Supplying Power to the Unit on page 24 for connection details.
The default switch must be pressed WHILE the STAT light is flashing green. Do not
press the default switch BEFORE the STAT light is flashing green, as this will cause
boot to be missed.