© Microhard Systems Inc. Confidential 105
Appendix A: AT Command Quick Reference
A
Answer
This command puts the modem into online/data mode
g, G
Spectrum Analyzer
Used to help determine if interfering RF signals are present.
In
Identification
Follow ATI with either of the following ‘n’:
0-User String
1-product code
2-firmware CRC check
3-firmware version
4-firmware date
5-firmware copyright
6-firmware time
7-Mac Address
11-statistics
255-factory-configured options listing
Login
Enables/allows the addition/changes to a password to login to
the modem.
M
Mesh Diagnostic Main Menu
Displays a menu used for Mesh diagnostics
N
Advanced Spectrum Analyzer
Advanced spectrum analyzer provides for a more detailed scru-
tiny of the RF environment.
&Fn
Load Factory Default Configuration
-follow AT&F with either of the following ‘n’:
1-Mesh Primary Coordinator
2-Mesh Remote
3-Mesh Secondary Coordinator
7-PMP Master
8-PMP Slave
9-PMP Repeater
10-PP Master
11-PP Slave
12-PP Repeater
13-PMP Master 57k
14-PMP Slave 57k
&Cn
DCD (Data Carrier Detect)
-controls modem’s DCD output signal
0-DCD always on
1-DCD on when modem’s sync’ed, always on if Master*
3-In PP/PMP provides global sync pulse
4-In Mesh Active when Carrier detected
5– In Mesh Active when Carrier absent
&Dn
DTR (Data Terminal Ready)
-controls the action the modem performs when the DTR input line
is toggled
-follow ATD with either of the following ‘n’:
0-*DTR line ignored
2-deassert DTR to force modem from data mode into command
mode at S102 serial baud rate; DTR must be asserted before
putting modem back into data mode (normally done using ‘ATA’
command)
&Kn
Handshaking
-controls modems CTS line and determines handshaking between
modem and host device.
0-disable handshaking
1-CTS controls transmitter of RS485 driver chip
3-enable hardware (RTS/CTS) handshaking*
&Sn
DSR (Data Set Ready)
-controls modem’s DSR line and determines when it is active
0-DSR always on
1-*DSR ON in data mode, OFF in command mode
2-DSR=0 when awake, 1 when asleep
AT&V
View Configuration
-displays all visible S registers and their current values
&W
Write Configuration to Memory
-stores active configuration into modem’s non-volatile memory
Sxxx?
Read S Register Value
-where xxx is the S register’s number, this command will result in
displaying the current setting of that register
Sxxx=yyy
Set S Register Value
-where xxx is the S register’s number, this command will place
value yyy in that register
Sxxx /?
Display S Register Help Text
-where xxx is the S register’s number, this command will result in
displaying the available settings of that register. Not all registers
have help text.
The following commands may be used when the modem is in COMMAND MODE; all are to be preceded with
“AT” and followed with [Enter]. An asterisk (*) indicates a default setting, where applicable.
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