ADTRAN NetVanta 3120 (with DBU) - Appendix A. Connector Pin Definitions; Table A-1. 10;100 Base-T Ethernet Port Pinouts; Table A-2. 1000 Base-T Gigabit Ethernet Port Pinouts (Netvanta 3140); Table A-3. Console Port Pinouts (Netvanta 3140)

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APPENDIX A. CONNECTOR PIN DEFINITIONS
The following tables provide the pin assignments for the NetVanta 3100 Series base units.
Base Unit Pinouts
Table A-1. 10/100Base-T Ethernet Port Pinouts
Pin Name Description
1 TX1 Transmit Positive (PoE negative rail, switch ports only)
2 TX2 Transmit Negative (PoE negative rail, switch ports only)
3 RX1 Receive Positive (PoE negative rail, switch ports only)
4, 5 — Unused
6 RX2 Receive Negative (PoE negative rail, switch ports only)
7, 8 — Unused
Table A-2. 1000Base-T Gigabit Ethernet Port Pinouts (NetVanta 3140)
Pin Name Description
1 TRD0+ Transmit/Receive Positive
2 TRD0- Transmit/Receive Negative
3 TRD1+ Transmit/Receive Positive
4 TRD2+ Transmit/Receive Positive
5 TRD2- Transmit/Receive Negative
6 TRD1- Transmit/Receive Negative
7 TRD3+ Transmit/Receive Positive
8 TRD3- Transmit/Receive Negative
Table A-3. Console Port Pinouts (NetVanta 3140)
Pin Name Description
1 DCD Data Carrier Detect (output)
2 TXD Receive Data (output)
3 RXD Transmit Data (input)
4 DTR Data Terminal Ready (input)
5 GND Signal Ground
6 DSR Data Set Ready (output)
7 RTS Request to Send (input)
8 CTS Clear to Send (output)
9 — Unused