User's Manual

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Chapter 3 Hardware Connection Description
This chapter describes how to connect ThinkCore W341/321/311 hardware, includes information
about the power connecting, wiring and function introduction.
This chapter covers the following topics:
 Wiring Requirement
 Connecting the Power
 Grounding ThinkCore W341/321/311
 Connecting to the Network
 Connecting to a Serial Device
 Connecting to the Console Port
 Internal SD Socket
 USB Hosts
 Relay Output
Wiring Requirements
This section describes how to connect ThinkCore W341/321/311 to serial devices.
You should heed the following common safety precautions before proceeding with the installation
of any electronic device:
y Use separate paths to route wiring for power and devices. If power wiring and device wiring
paths must cross, make sure the wires are perpendicular at the intersection point.
NOTE: Do not run signal or communication wiring and power wiring in the same wire
conduit. To avoid interference, wires with different signal characteristics should be routed
separately.
y Use the type of signal transmitted through a wire to determine which wires should be kept
separate. The rule of thumb is that wiring that shares similar electrical characteristics can be
bundled together.
y Keep input wiring and output wiring separate.
y It is advisable to label the wiring to all devices in the system.