Page 23
724-746-5500 | blackbox.com
LB308A
Chapter 2: Overview
Table 2-3. Ports on the switch.
Number
Number of Ports
Description
Mode Selection
12
(8) RJ-45
10/100BASE-TX ports
10BASE-T full-duplex mode
10BASE-T half-duplex mode
100BASE-TX full-duplex mode
100BASE-TX half-duplex mode
Auto-negotiating mode
13
(2) RJ-11 and terminal blocks
Ethernet Extender ports
Asymmetrical or symmetrical
10/100BASE-T and Ethernet Extender Connectors
Figure 2-2 illustrates the 10/100BASE-T RJ-45 connector. Table 2-4 describes the
connector pinouts.
Figure 2-2. 10/100BASE-TX RJ-45 connector.
Table 2-4. RJ-45 connector pinouts.
Pin
Regular Ports Signal
Uplink Ports Signal
1
Output Transmit Data +
Input Receive Data +
2
Output Transmit Data -
Input Receive Data -
3
Input Receive Data +
Output Transmit Data +
4
Not connected
Not connected
5
Not connected
Not connected
6
Input Receive Data -
Output Transmit Data -
7
Not connected
Not connected
8
Not connected
Not connected
Figure 2-3 illustrates the Ethernet Extender RJ-11 and terminal block connectors.
Table 2-5 describes the pinouts.
