User's Manual

2
Table of Contents
Introduction 3
General Specifications 4
Mechanical Specification and Pin Orientation 5
Serial TTL Interface Signal Level Pin Assignments 6
Functional Description of the Serial Interface Signals 7
Antenna Connection 8
FCC Compliance 8
Wireless Data Link Options 10
Point to Point Operation 11
Auto Link Operation 12
Point to Multi-point Operation 13
Suggestions for Improving the Connection 14
Changing from Data Mode to Command Mode 14
The AT Command Set 15
AT Command Listing 16
AT S Registers 25
Command Result Codes 26
Receiver Sensitivity 27
MDK-2001 Development Board 27
MDK-2001 Lights and Description 28
RS232 EIA Serial Port Cable Information 29
Uploading New WHM900 Code 29
Limited Warranty 31
Contacting Radicom Research 33