1.1.1. Main Board
The CloudGate LTE WW Rev 4 is designed around a main board and a 4G WWAN
module. The processor on the main board controls all the interfaces. The WWAN
module provides the wireless connectivity to to the internet.
The block diagram shows the overview.
Main Board Block Diagram (PDF)
Power Input
V_PWR: min 9V DC, max 33V DC
Internal Power Supply
Power input: V_PWR, min 9V DC, max 33V DC
Stable 3.4V power rail
Reverse polarity protection
Over-voltage protection up to 60V
Current limiter at 1.2A
One-time fuse of 2A
Main Board Processor
Freescale i.MX280 @ 450 MHz
128 MB RAM
512 MB Flash memory
30MB Application partition
270MB free data partition
Connector
2x RJ45 Ethernet interface (WAN / LAN)
1x SMA WWAN Main
1x SMA WWAN Div / GPS
WWAN module
The WWAN module in the LTE WW Rev 4 is the Quectel EG25-G.
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