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Configuration 3 - 61

Use these settings to ensure that the communication ports on the Omnii match the settings of the serial

devices to which they are connected. If the settings do not match exactly, the devices may not function. Note

that some devices can auto-detect serial port settings (such as baud rate), and in this case the Omnii will

dictate the settings. Baud rates often have a direct impact on performance — they should be set as high as

possible while still ensuring reliable communication.

Port Replicator Port A (COM5) and Port B (COM6)

Port Replicator Port A (COM5) and Port B (COM6) are standard RS-232 DE-9 DTE ports on the Omnii port

replicator module, available on some snap modules and cradle types.

Enabled

This parameter must be set to ON in order for the Omnii to recognize the device connected to the Port Repli-

cator 9-pin (COM5).

Power (COM6 only)

Pin 9 on the Omnii COM6 is reserved for 5V power out and is defaulted to OFF. This parameter must be set to

ON to enable power to a Snap Module or Vehicle cradle.

Baud

Double-tapping on this parameter displays a pop-up window in which you can choose an appropriate rate of

data transfer.

Figure 3-6

Port Baud Rates

Data Bits

This parameter determines the number of data bits included in each asynchronous data byte. Most devices

use 8-bit data bytes. Double-tapping on this option displays a pop-up window in which you can choose either 7

or 8 data bits.

Parity

This parameter determines the type of parity checking used on the data going through the port replicator port.

Double-tapping on this option displays a pop-up window in which you can choose the appropriate parity.

Stop Bits

This parameter specifies the number of stop bits — 1, 1.5 or 2 — used for asynchronous communication.

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Motorola 7545MBWM Guía de usuario Pagina 129