User`s manual

UC-7400 Plus Hardware User’s Manual Hardware Introduction
The following block diagram shows the layout of the UC-7420 Plus’s internal components.
USB
Host
USB
controller
PCI to cardbus
Bridge
Moxa UART ASIC
PCI Bus
USB
Client
PCMCIA &
CompactFlash
Console LAN2 LAN1
RS-232/422/485
232-SR
Ethernet
Power
circuit
Power
XScale IXP425 533 MHz
32 MB Flash
128 MB SDRAM
LCM Display
& Keypad
7 85 61 2 3 4
PHY PHY
RTC
LED Indicators
The UC-7408 Plus, UC-7410 Plus, and UC-7420 Plus have 12 LED indicators on the top panel.
The UC-7402 Plus has only 4 LED indicators (since there are no serial port indicators) on the top
panel. Refer to the following table for information about each LED.
LED Name Color Meaning
Ready Green Power is ON, and system is ready (after booting up)
Yellow 10 Mbps Ethernet connection
LAN1, LAN2
Green 100 Mbps Ethernet connection
Yellow Console port is receiving RX data from the serial device.
Console
Green Console port is transmitting TX data to the serial device.
Yellow Serial port is receiving RX data from the serial device.
P1, P2, P3, P4,
P5, P6, P7, P8
Green Serial port is transmitting TX data to the serial device.
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