Enterasys csx400 用户手册
CSX400 and CSX400-DC User’s Guide
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EPIM Specifications
Introduction
The CSX400 provides two ports for Cabletron Systems EPIMs. EPIMs allow connection to the
main network using different media types. The following sections explain the specifications of the
variety of EPIMs Cabletron Systems offers.
main network using different media types. The following sections explain the specifications of the
variety of EPIMs Cabletron Systems offers.
EPIM-T
The EPIM-T is an RJ45 connector supporting UTP cabling. It has an internal Cabletron Systems
TPT-T 10BASE-T Twisted Pair Transceiver.
TPT-T 10BASE-T Twisted Pair Transceiver.
The slide switch on the EPIM-T determines the crossover status of the cable pairs. If the switch is
on the
on the
X
side, the pairs are internally crossed over. If the switch is on the = side, the pairs are not
internally crossed over.
shows the pinouts for the EPIM-T in both crossover positions.
Figure 78
EPIM-T Pinouts
Position =
(not crossed over)
(not crossed over)
1. TX+
2. TX-
3. RX+
4. NC
2. TX-
3. RX+
4. NC
5. NC
6. RX-
7. NC
8. NC
6. RX-
7. NC
8. NC
Position X
(crossed over)
(crossed over)
1. RX+
2. RX-
3. TX+
4. NC
2. RX-
3. TX+
4. NC
5. NC
6. TX-
7. NC
8. NC
6. TX-
7. NC
8. NC