Product manual

XStream‐PKG‐T™TelephoneRFModem–ProductManualv5.x00[2006.02.24]

3. TelephoneModuleOperation

3.1. Telephone Module Configuration

The Telephone Module features a rich set of AT commands that allow flexibility in operations. On

power-up or reset, the Telephone Module operates in command mode and will accept AT

commands either from an RS-232 serial cable or from another MaxStream RF Modem (PKG-R,

PKG-U, etc.) over a wireless link.

Refer to the Telephone Module Configuration Example section [p

25] for programming examples.

Hardware Setup Option 1 – Serial Port Method:

Configurations made through the serial line [Figure 3-01]

©2006MaxStream,Inc.,ConfidentialandProprietary 20

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1. Connect an RS-232 cable to the DB-9 connector of the PKG-T RF Modem.

2. Move DIP Switch 1 (Speaker Control) to the ON (up) position and DIP Switch 2

( control) to the OFF (down) position. This will configure the Data Path

Switch to connect the DB-9 and Telephone Module.

3. Assert (+10V). Most serial communications software (including MaxStream’s X-CTU

Software) will assert when the serial com port is opened.

Figure3‐01. HardwareSetup‐SerialPortMethod

Hardware Setup Option 2 – Wireless Link Method

Configurations made via a remote PKG RF Modem [Figure 3-02]

1. Detach cable from the DB-9 connector (Absence of the cable will automatically de-assert

(-10V RS-232 level)).

2. Connect wirelessly to the RF Modem (AT Commands are sent from a PC to a device such as

the PKG-R RS-232/485 RF Modem via a serial port. The PKG-R Modem then relays

commands over-the-air to the PKG-T Telephone RF Modem.)

Figure3‐02. HardwareSetup‐WirelessLinkMethod