3E02-08-Atx Ethernet Switch Module; Connectors; Leds; Offline Button - Cabletron Systems 3E02-04 User Manual

1.8.2

LEDs

The 3E05-04 contains a total of 10 green LEDs labeled RX and TX for
each segment, plus PROC and PWR for the module. The LEDs are
described in Chapter 5 of this manual.
1.8.3 Offline Button
Use the offline button before swapping the module, to take it offline until
the replacement is installed.
RESET

1.9 3E02-08-ATX ETHERNET SWITCH MODULE

The 3E02-08-ATX (Figure 1-6) provides connection for eight
independent 10BASE-T LANs to the ATX. It includes processing
circuitry for receiving and forwarding packets between the connected
10BASE-T LANs. The 3E02-08-ATX contains several LEDs to indicate
the module's operational status.
The 3E02-08-ATX supports UTP cabling and the IEEE 802.3 10BASE-T
specification.
1.9.1

Connectors

The 3E02-08-ATX includes eight 8-pin RJ45 receptacle connectors with
built-in crossover that you can attach directly to the network using
unshielded twisted pair (UTP) cabling. The ATX power supply provides
the power for the module.
An internal receive/transmit pair crossover is provided within
NOTE
each port. This means that depending on whether crossover is
provided on the device you're connecting to, you can use either
crossover or straight-through UTP cable to connect a device to
a port. For more cabling and crossover information, see
Appendix B.
Ethernet Switch Module User Guide
SEGMENT 1 SEGMENT 2
RX
TX
Figure 1-5 3E05-04 Front Panel
3E02-08-ATX Ethernet Switch Module
QUAD IEEE 802.3 / ETHERNET AUI
SEGMENT 3
RX RX
TX TX
SEGMENT 4
RX PROC
TX PWR
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