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JANUS? 2020 Hand-Held Computer (4MB) - Intermec

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<strong>JANUS</strong> <strong>2020</strong> <strong>Hand</strong>-<strong>Held</strong> <strong>Computer</strong> User’s Manual (<strong>4MB</strong>) NF BC<br />

Communications Protocol<br />

Configure<br />

12-38<br />

Protocol determines how the reader communicates with the host through the<br />

DTE interface of the selected communications port. You can configure a<br />

different communications protocol for each communications port. Even if you<br />

use the same communications protocol, you must configure each<br />

communications port separately. You can also configure a different protocol for<br />

each communications port.<br />

Before configuring a protocol, you need to select the communications port. For<br />

help, see “Communications Port, Select COM Port” earlier in this chapter.<br />

To configure the communications protocol<br />

1. Configure the protocol.<br />

2. Activate the protocol.<br />

After you activate the protocol, you need to load the protocol handler, set the<br />

UART FIFO control register, and connect the device. For help, see<br />

“Configuring the Reader for Communications” in Chapter 6.<br />

Purpose: Configures the communications protocol for the selected communications port.<br />

The reader assigns all subsequent protocol configuration changes to the<br />

selected communications protocol. Next, set the parameters, such as baud rate<br />

or data bits, for the communications protocol.<br />

Note: You cannot reconfigure some of the protocol characters for User-Defined if<br />

User-Defined is active. If User-Defined is the active protocol, set the active protocol to<br />

None. Once you configure User-Defined protocol, reactivate the protocol.<br />

Here are the parameters you can set for each communications protocol:<br />

Multi-Drop protocol parameters<br />

• Baud rate, parity, and data bits<br />

• Transmit abort timeout<br />

• Address, multi-drop<br />

PC Standard protocol parameters<br />

• Baud rate, parity, data bits, and stop bits

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