ADTRAN NetVanta 3120 (with DBU) - Netvanta 3120 Rear Panel Design; Figure 3. Netvanta 3120 (with DBU) Rear Panel Layout; Figure 4. Netvanta 3120 (Without DBU) Rear Panel Layout

Physical Descriptions NetVanta 3100 Series Hardware Installation Guide
16 Copyright © 2015 ADTRAN, Inc. 61700600L2-34C
NetVanta 3120 Rear Panel Design
The NetVanta 3120 rear panel is shown below. Appendix A on page 37 provides pinouts.
Figure 3. NetVanta 3120 (with DBU) Rear Panel Layout
Figure 4. NetVanta 3120 (without DBU) Rear Panel Layout
NetVanta 3120 Rear Panel Interfaces
10/100Base-T Ethernet Interface
The Ethernet port (ETH 0/1) is an RJ-45 connector. See Table A-1 on page 37 for the Ethernet port
pinouts. The Ethernet port provides the following:
• 10Base-T or 100Base-T with a single connector
• Auto-negotiation
•CSMA/CD
• IEEE 802.3 compatibility
DBU Interface (1700600L2 only)
The NetVanta 3120 has a DBU port on the rear panel to provide analog, V.90 dial backup. See
Table A-4 on page 38 for the DBU connector pinouts.
Factory Default Switch
The NetVanta 3120 has a factory default switch (labeled in Figure 3) 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.
1
DBU
23 4ETH 0/1
10
Default
Switch
1234ETH 0/1
10
Default
Switch