User's Manual

MaxStream 9XStream™ Wireless OEM Module Manual v2.8

Confidential and Proprietary, ©MaxStream, Inc. 2001

Command Mode

(cont.)

In these examples, sent or received ASCII characters are marked in

quotations. Quotation marks should not be included when sending

commands to the 9XStream modules. Carriage Returns (ASCII character

13) will be denoted as <CR>. Binary values are represented in this

document with < and >. These characters are also not sent as part of the

actual command. All binary values are represented as hexadecimal values

(HEX) in these examples, and are denoted by an H after the number. The

actual Binary Command values must all be sent in binary with the Least

Significant Byte (LSB) sent first followed by the Most Significant Byte

(MSB) if the value is larger than one byte.

AT Commands

The following sections contain a description of the AT and Binary Command

Modes along with some examples. In these examples, sent or received ASCII

characters are marked in quotations.

AT commands can be sent to the module using ASCII commands and

parameters. A special break sequence is used so that the module will transition

into AT Command Mode. The default sequence for entering AT Command

Mode is as follows:

• No characters sent for one (1) second.

(Time modified by BT command.)

• Three (3) plus characters (+++) sent within one (1) second.

(Character modified by CC command.)

• No characters sent for one (1) second.

(Time modified by AT command.)

The 9XStream module responds by sending an OK<CR>.

All AT commands are sent as follows:

Two (2)

Character

ASCII

Command

Optional

Space

Parameter

(HEX)

Carriage

Return

The ASCII command consists of AT followed by two alphanumeric bytes, and

the parameter is a number represented as ASCII hexadecimal characters (0-9, A-

F). The ASCII commands and parameters are not case-sensitive. The optional

space can be any non-alpha-numeric character

After executing a recognized AT command, the module responds with an

OK<CR>. If an unrecognized command or a command with a bad parameter is

received, the module will respond with an ERROR<CR>.