User's Manual

OS2400 Radio Module Exhibit 21: User Manual 3 FCC ID: OQ7OS2400

Viewing (and Changing) a Radio’s Settings

The settings of a radio can be viewed through the Radio Configuration Dialog box.

To view the settings of a particular radio select:

?? (highlight) the radio

?? PROPERTIES

?? RADIO

?? quickly double click on the radio’s icon with

the left mouse button

Radio Name: As it appears in this field, the

radio’s name will appear as a label under the

radio’s icon. The name can be any combination of

up to 100 alphanumeric characters and spaces.

Last Configured: The date and time reported

here indicates the last time that the configuration

parameters were modified and saved, or when the

radio was configured, configuration data was

downloaded to the radio.

Serial Port Settings: the serial port settings of the radio radio, (not the PC’s serial port).

Note: The settings of baud rate, parity, data bits (data word size) and stop bits must

match the settings of the device which will be cabled to the radio during normal network

operation.

Radio Address: each radio in the network is automatically assigned a unique address.

If a radio’s address is manually changed to an address already assigned to another

radio in the same network, neither radio will communicate over the network. It is

recommended that this addressing scheme not be changed by the user.

Note: In general, ACCEPT THE DEFAULTS.

The Radio Settings adjust the over the air performance of the radio network:

Transmit Power: This value should be set as low as possible and yet give a reliable

over the air connection to the receiving radio. A higher power setting than necessary

could increase the distance required between two networks operating on the same

channel.

Number of Antennas: This is sometimes referred to as “antenna diversity”. The

use of two antennas allows the radio to cancel out noise. “Noise” is defined as an

unwanted signal which has been transmitted at the same frequency as the radio was

designed to detect. There are many man-made and natural sources of “noise”.

Link Retry Limit: If there is an error in transmission, the transmitting radio will re-

send the data as many times as set with the Link Retry Limit slider switch. In normal

transmission, the receiving radio “acknowledges” that the data has been received

with no detected errors. If the transmitting radio does not get an acknowledgement,

it will re-transmit until the retry limit has been met. Moving the slider to the right will