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724-746-5500 | blackbox.com
724-746-5500 | blackbox.com
Page 15
Chapter 2: Overview
Table 2-3. LES422A components.
Number in Figure
2-3 or 2-4 Component Description
1 (1) RJ-45 connector
Connects a standard Ethernet network drop using a straight-through RJ-45 male Ethernet cable.
2 (2) DB9 male connectors
Connects to RS-232, RS-422, or RS-485 serial devices.
3 (1) 2-wire terminal block connector
Removable 2-position terminal block with +, -, and chassis ground connections.
4 (2) Serial Port LEDs
Flashes green when data is being transmitted or received on the serial port.
Lights steady green when the serial port is open.
5 (1) Ethernet Link LED
Lights when a connection is made.
Flashes when there is data traffic on the Ethernet link.
6 (1) Ready LED
Lights green continuously when the unit is initializing.
Flashes once per second when the system is operating correctly.
Off when something is wrong, for example, another device uses the same IP address.
7 (1) Reset button
Used to initiate a hardware reset, enter console mode, or reload factory defaults.
2.4.3 4-Port Hardened Serial Server (LES424A)
Figures 2-5 and 2-6 show the front and side panels of the LES424A. Table 2-4 describes its components.
7 7 5 6 5 6
3
2
1
4 3 4 5 6 5 6
Figure 2-5. LES424A front panel.