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Owner’s Manual
4-Port USB Serial Adapter
®
for Windows
Model: USA-49WG
1111 W. 35th Street, Chicago, IL 60609 USA
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1.1 – Introduction Looking for a way to connect your serial devices to a USB port on your USB equipped Windows computer? The Keyspan USB 4-Port Serial Adapter is a simple, inexpensive, and reliable way to make this connection. The Adapter plugs into any USB port on your PC. It provides FOUR DB9 serial ports which can be used to connect to your Palm Organizer, Windows CE device, Wacom tablet, and many other serial devices. Multiple Keyspan USB 4-Port Serial Adapters may be installed on one CPU
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2.1 – Capabilities The Keyspan USB 4-Port Serial Adapter provides FOUR male DB9 serial ports which support RS-232 asynchronous communications at data rates up to 230 Kbps. Keyspan USB 4-Port Serial Adapter Ports The four DB9 ports on the Keyspan Adapter are seen as COM ports by Windows. The Keyspan COM ports are interfaced via the “Win32 Communications API” and are then available to any program that accesses COM ports via this API. By default, the COM port numbers assigned to the Keyspan adap
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3.1 – Installation Instructions Installing the USB 4-Port Serial Adapter Software for Windows Operating Systems Step 1 – Insert the Keyspan Serial Adapter CD-ROM. Turn your computer ON. When your computer starts up, place the Keyspan USB 4-Port Serial Adapter CD into the CD- ROM drive. Step 2 – Run the Keyspan USB Serial Software for Windows Installer. If the Keyspan Adapter is connected to your computer, disconnect it now. Locate the Windows driver and double click on it to begin driver install
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4.1 – Configuring Your Serial Device Prior to using your serial device (modem, UPS, etc.) with the Keyspan USB 4-Port Serial Adapter, you must: 1. Connect your serial device (hardware) to the Keyspan port. 2. Configure your serial device’s software to use the Keyspan port. Connecting Your Serial Device (Hardware) If your Keyspan adapter is not connected, please do so NOW. Step 1 – Connect Your Serial Device to the Keyspan Adapter. Attach your serial device’s (Palm cradle, GPS, cell phone) serial
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4.1 – Configuring Your Serial Device The COM port number and its COM port status message are very important to configuring your serial device. The COM port status is the state of the Keyspan serial port. All serial ports have two states, BUSY (In Use) or IDLE (Available). When the serial port is IDLE, the port is available for use by any serial device’s software. When a COM port is BUSY, the serial port is in use by software and therefore not available to other programs. The COM port number i
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5.1 – Keyspan Serial Assistant Besides the required drivers, the Keyspan USB 4-Port Serial Adapter software installer installs an application called Keyspan Serial Assistant. This application is used to: · Determine the status of the adapter software and hardware · Assist in problem solving Launching the Keyspan Serial Assistant To launch the Assistant, open the Keyspan Serial Assistant (in START menu-> PROGRAMS-> KEYSPAN USB 4-PORT SERIAL ADAPTER-> KEYSPAN SERIAL ASSISTANT). When you open
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5.1 – Keyspan Serial Assistant Adapter Status Tab The Adapter Status tab in the Keyspan Serial Assistant displays the status of your Keyspan adapter. Specifically, it shows the COM port number (COM1, COM2, etc.) and the COM port status (IDLE or BUSY). If you have several Keyspan adapters of the same type, they will all show up in this tab. This is also the first place to check to see if your Keyspan adapter is working properly. Properties Tab The Properties tab in the Keyspan Serial Adapter al
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5.1 – Keyspan Serial Assistant The Adapter pull down menu is used to select which USB 4-Port Serial Adapter you would like to configure. If you only have one Keyspan USB 4-Port Serial Adapter, you will not need to change the selection. The Power radio buttons are used to configure which USB power mode the Keyspan adapter will use. Use the Low/Compatible (normal speed) setting when you are using multiple serial devices at speeds of 115 Kbps or lower or when only using one port at speeds of 230
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5.1 – Keyspan Serial Assistant There are 3 types of tests: TX Only: Use this test to test only the transmit (Tx) signals of the Keyspan adapter. Ext. LoopBack: Use this test for sending and receiving data. This test sends data out the selected serial port and waits to receive it via a special Loopback connector. You can find more information about this special Loopback connector in the Serial Port Pin Outs section in this manual. Int. LoopBack: Use this test for sending and receiving data.
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5.1 – Keyspan Serial Assistant Port Mapping Tab The Port Mapping tab in the Keyspan Serial Assistant allows you to change how COM port numbers are assigned to your Keyspan adapter. The following is an explanation of the item in this tab. Important!!! Please make sure you read this entire section. Changing COM port assignments may render other hardware unusable. The COM Port List box shows any connected Keyspan USB 4-Port Serial Adapter, its COM port numbers and COM port statuses. You can als
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5.1 – Keyspan Serial Assistant The Adapter Port Mapping Mode box allows you to change the behavior of how Keyspan COM port numbers are assigned when you connect the Keyspan adapter to a different USB port than the one it was originally connected to. Dynamic assigns a COM port number (or numbers if your Keyspan adapter has multiple serial ports) to a particular Keyspan adapter. If you disconnect the Keyspan adapter and connect it to a different USB port, the COM port number of that Keyspan ada
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5.1 – Keyspan Serial Assistant The Adapter Status/Error Events box displays the status of your Keyspan adapter hardware and software. It detects if the Keyspan driver is installed and whether or not a Keyspan adapter is connected. The Clear Log Window button will clear the Adapter Status/Error Events box. Enable or check the Log Debug Events check box to display all of the Keyspan adapter’s debug events as well as the driver events. This option can be turned on and off. The Open Driver Events
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6.1 – Problem Solving If you are having problems with your Keyspan USB to Serial Adapter, please read the following instructions to assist you in troubleshooting. Hardware Troubleshooting Step 1 – Use the Keyspan Serial Assistant. Launch the Keyspan serial Adapter application. When you open the Keyspan serial Assistant application, the ‘Adapter Status’ tab will show your Keyspan adapter, its COM port numbers (COM1, COM2, etc.) and its COM port status (IDLE or BUSY). Software/Serial Device Tr
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7.1 – Appendices · Frequently Asked Questions (FAQs) Frequently Asked Questions · Configuration Examples for Windows Instructions on configuring select serial devices to use Keyspan serial ports · Serial Port Pin Outs Serial Port Pin Out and loopback Test Information · LED Behavior Description of the LED Behavior on your Keyspan Adapter · TX Ack Advance White Paper on the TX Ack Advance feature 7.1.a – Frequently asked Questions (FAQs) The following is a list of Frequently Asked Question
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7.1.b – Configuration Example for Windows The following is a configuration example for Windows. The example provides step-by-step instructions on configuring select serial devices. · Palm Desktop 7.1.c – Palm Desktop Before you begin… This configuration example assumes that you have already done the following: 1. Installed the Keyspan serial port hardware and software. 2. Installed the Palm Desktop software. 3. Connected the Palm Serial Cradle hardware to a Keyspan serial port. If you have not
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7.1.c – Palm Desktop The easiest way to access the HotSync Manager is via the Palm Desktop software. To do this, launch the Palm Desktop software. When the Palm Desktop software is running, go to the “HotSync” menu and select the “Setup” command. Once the HotSync® Manager application is opened, you will be presented with the HotSync Setup window. Step 3 – Configure the HotSync setup Window. In the HotSync Setup window, click on the Local tab. This will display the Serial Port and Speed pull do
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7.1.d – Serial Port Pin Outs The pin assignments for the Keyspan USB 4 Port serial Adapter’s male DB9 port are illustrated below: Pin Name Signal Designation 1 DCD Data Carrier Detect (Input) 2 RX Received Data (Input) 3 TX Transmitted Data (Output) 4 DTR Data Terminal Ready (Output) 5 GND Ground 6 DSR Data Set Ready (Input) 7 RTS Request To Send (Output) 8 CTS Clear To Send (Input) 9 RI Ring Indicator (Input) In order to ensure compliance with emission specifications, cables
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7.1.e – LED Behavior The Keyspan USB 4-Port Serial Adapter part number USA-49WG comes equipped with LED lights that report the status of the Keyspan adapter USB hardware and serial port. The following table shows all of the possible states of these LED light and what they mean: Color State Significance Red Off The Keyspan adapter is not connected or not receiving power from your computer. Red On The Keyspan adapter is connected and is receiving power from your com
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7.1.f – TX ACK Advance Overview Many Keyspan USB serial adapters support confirmable “Transmit Acknowledgement Advance” (aka TX-ACK threshold, aka TX-ACK (nowledgement) advance, etc.) in the Keyspan Manager. This feature allows the user to adjust a device’s transmit behavior to achieve the optimum compromise between compatibility (exact emulation of built-in ports) and maximum throughput. This document describes the factors which a user should be aware of to guide their configuration of this
