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Chapter 2: Overview
2.4 Hardware Description
Figure 2-1 shows the front and top panels of the extender units. Tables 2-1 and 2-2 describe the extender's
components. Use the extenders in pairs: one unit is configured as the local unit and the other unit is configured as the remote
unit.
1
2
3
4
5
6
Figure 2-1. Front and top views of the extender.
Table 2-1. Extender components.
Number in Figure 2-1 Component Description
1 RJ-45 connector Links to 10/100 Mbps Ethernet.
2 LEDs Indicate status at a glance. See Table 2-3 for details.
3 RJ-11 connector Links to Ethernet line.
4 Terminal block Links to Ethernet line.
5 DIP switches Select Mode, Symmetry, and Performance.
6 Terminal block Used for power.
Front Panel Features
10/100 Mbps RJ-45 Port
The LB323A Industrial Ethernet Extender has one 10/100 Mbps RJ-45 port (see Figure 2-1). This port is an auto-sensing, auto-
MDIX 10/100 Mbps port.
When you insert a cable into an RJ-45 port, the Industrial Ethernet Extender:
• Determines whether the cable is a straight-through or crossover cable.
• Automatically ascertains the maximum speed (10 or 100 Mbps) and duplex mode (half- or full-duplex) of the attached device.
After determining this information, the Industrial Ethernet Extender configures the RJ-45 port automatically to enable communica-
tions with the attached device, without requiring user intervention.
Ethernet Extender Port
The LB323A Industrial Ethernet Extender has one Ethernet Extender port (RJ-11 connector or terminal block, see Figure 2-1).
Insert the voice-grade copper wire between one pair of Ethernet Extenders via the Ethernet Extender port (RJ-11 connector or ter-
minal block). One device must be set to LOC mode and the other to Auto mode when two devices are connected.
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