Encom ENC-900, Руководство по эксплуатации

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18 ENC-900 Operating Manual: Chapter 3 Configuration Options
4. C
ONFIGURATION
Warning: After testing the units
for correct operation using the
quick-start approach, be sure to
modify some of the security
parameters such as Network
Address and Encryption Key, to
avoid unintentional
communication with other users of
ENC-900 products..
M
S
Network 1
M
S R
M
S R
Network 2
Figure 6. Basic Networks
This chapter provides a detailed description of the various operating
parameters of the ENC-900. Section 4.1 provides a quick-start approach
which outlines the minimum requirements for establishing communication
between two ENC-900 modules. The settings will not necessarily provide
optimal performance for your application, but will verify that the modules
are functioning correctly.
Section 4.2 describes the AT Command interface, and the various AT
Commands. Section 4.3 covers all S-Register parameters which affect the
operation of the modem, and Section 4.4 provides a description of all
diagnostic features of the modem.
4.1 Quick Start Approach
There are several parameters that must be set in order to establish
communication between a pair of ENC-900 modules.
The ENC-900 is equipped with four standard factory default settings.
Instead of manually configuring each individual operating parameter, a
global command may be used to quickly configure the modem for a
particular type of operation. For example, to quickly implement Network 1,
Factory default 1 would be applied to the Master, and Factory default 2
would be applied to the Remote. To quickly set up Network 2, apply Factory
1 to the Master, Factory 3 to the Repeater, and Factory 4 to the Remote.
These defaults will get you started and only ensure that a link can be
established, but do not necessarily provide the best performance
.
Optimization of the communications link is discussed in later sections.
To implement the basic network illustrated in Figure 6, Network 1,
1. Insert the module into the development board socket with the
antenna connector at the end near the power jack.
2. Attach the supplied antenna.
3. Connect a straight through serial cable between the DB9 connector
and the serial port on your PC
4. Run any terminal application program such as Hyperterminal and
set the terminal application’s serial port settings to 9600 baud, 8N1
5. Apply power to the development board
6. While the three RSSI LED’s are blinking, type ‘ENC’ (you have
about 5 seconds to do this). The modem should respond with ‘OK’.
7. Configure the unit to Factory Setting 1 by typing AT&F1 <return>. This
puts the unit into Master Point-to-point mode.
8. Store these settings to memory by typing AT&W <return>.
9. Put the modem into Data Mode by typing ATA (or ATO) <return>
10. Perform above steps for the second unit, using Factory Setting 2 instead of
Factory Setting 1. This will configure the second unit as a Remote.