ADTRAN NetVanta 1748F Series, Hardware Installation Manual

Page: 30 / 42

Port Connections ADTRAN 1748F Switch
30 Copyright © 2016 ADTRAN, Inc. 61700558F1-34B
Figure 14. RJ-45 Connector
Table 5. 10/100BASE-TX MDI and MDI-X Port Pinouts
1000BASE-T Pin Assignments
All 1000BASE-T ports support automatic MDI/MDI-X operation, so you can use straight-through cables for all
network connections to PCs, servers, or switches.
The table below shows the 1000BASE-T MDI and MDI-X port pinouts. These ports require that all four pairs of
wires be connected. Note that for 1000BASE-T operation, all four pairs of wires are used for both transmit and
receive.
Table 6. 1000BASE-T MDI and MDI-X Port Pinouts
1000BASE-T Cable Requirements
All Category 5 UTP cables that are used for 100BASE-TX connections should also work for
1000BASE-T, providing that all four wire pairs are connected. However, it is recommended that for all
critical connections, or any new cable installations, Category 5e (enhanced Category 5) or Category 6
cable should be used. The Category 5e and 6 specifications include test parameters that are only
recommendations for Category 5. Therefore, the first step in preparing existing Category 5 cabling for
running 1000BASE-T is a simple test of the cable installation to be sure that it complies with the IEEE
802.3-2008 standards.
Connection Procedure
The switch has one 10/100/1000BASE-T port for dedicated management access. Making a connection to this
port is described in
Connecting to the Management Port on page 37 .
Pin MDI Signal Name MDI-X Signal Name
1 Transmit Data plus (TD+) Receive Data plus (RD+)
2 Transmit Data minus (TD-) Receive Data minus (RD-)
3 Receive Data plus (RD+) Transmit Data plus (TD+)
6 Receive Data minus (RD-) Transmit Data minus (TD-)
4, 5, 7, 8 Not used Not used
Pin MDI Signal Name MDI-X Signal Name
1 Bi-directional Pair A Plus (BI_DA+) Bi-directional Pair B Plus (BI_DB+)
2 Bi-directional Pair A Minus (BI_DA-) Bi-directional Pair B Minus (BI_DB-)
3 Bi-directional Pair B Plus (BI_DB+) Bi-directional Pair A Plus (BI_DA+)
4 Bi-directional Pair C Plus (BI_DC+) Bi-directional Pair D Plus (BI_DD+)
5 Bi-directional Pair C Minus (BI_DC-) Bi-directional Pair D Minus (BI_DD-)
6 Bi-directional Pair B Minus (BI_DB-) Bi-directional Pair A Minus (BI_DA-)
7 Bi-directional Pair D Plus (BI_DD+) Bi-directional Pair C Plus (BI_DC+)
8 Bi-directional Pair D Minus (BI_DD-) Bi-directional Pair C Minus (BI_DC-)