Connectors; Leds; Offline Button; 3E07-04 Ethernet Switch Module - Cabletron Systems 3E02-04 User Manual

Chapter 1: Introduction
1.5.1

Connectors

The 3E02-04 includes eight 8-pin RJ45 ports for attachment directly to
the network through UTP cabling. The ATX power supply provides the
power for the module.
An internal receive/transmit pair crossover is provided in the
NOTE
second connector (far right, marked with an X) on each port.
This means that when either a station or server is directly
attached to a 3E02-04 port, you can choose to use either
straight-through or crossover cabling. For more cabling and
crossover information, see Appendix B.
1.5.2

LEDs

The 3E02-04 provides a total of 18 green LEDs labeled LNK, COL, RX
and TX for each segment, plus PROC and PWR for the module. The
LEDs are described in Chapter 5, Diagnostics and Troubleshooting, of
this manual.
1.5.3 Offline Button
Use the offline button before swapping the module, to take it offline until
the replacement is installed.
OFFLINE

1.6 3E07-04 ETHERNET SWITCH MODULE

The 3E07-04 (Figure 1-3) provides connection for four independent
10BASE2 LANs to the ATX backplane and packet processing module. It
includes processing circuitry for receiving and forwarding packets
between the connected 10BASE2 LANs. The 3E07-04 contains several
LEDs to indicate the module's operational status.
The 3E07-04 supports thin coaxial cable Ethernet and the IEEE 802.3
10BASE2 specification.
Page 1-6
SEGMENT 1 SEGMENT 2
LINK RX
COL TX
X X
Figure 1-2 3E02-04 Module Front Panel
QUAD IEEE 802.3 / ETHERNET 10BASET
SEGMENT 3
LINK RX LINK RX
COL TX COL TX
X
Ethernet Switch Module User Guide
SEGMENT 4
LINK RX PROC
COL TX PWR
X