SIO4-104.232 User Manual Item number 3542 www.sealevel.com PO Box 830 Liberty, SC 29657 864.843.
Table of Contents INTRODUCTION......................................................................................................................... 1 SIO4-104.232.............................................................................................................................. 1 OTHER SEALEVEL PC104 SERIAL INTERFACE PRODUCTS............................................................ 1 BEFORE YOU GET STARTED......................................................................................
Introduction SIO4-104.232 The SIO4-104.232, Item Number 3542, is a PC/104 module that provides four RS-232 serial interface ports. The board is designed using the XR16C554 UART, which provides a 16-byte FIFO. The RS-232 compatibility allows for connection to devices utilizing the RS-232 electrical interface, such as modems, and data-entry terminals. In addition to the standard XR16C554 UART, the XR16C854 (‘SE’ option) and the OX16C954 (‘SN’ option) are available.
Before You Get Started What’s Included The SIO4-104.232 is shipped with the following items. If any of these items is missing or damaged please contact Sealevel for replacement. • SIO4-104.232 Adapter • Sealevel SeaCOM Software CD Optional Items Depending upon your application, you are likely to find one or more of the following items useful for interfacing the SIO4-104.232 to real-world signals. All items can be purchased from our website (http://www.sealevel.com/) or by calling 864-843-4343.
Card Setup Address Selection The SIO4-104.232 occupies 16 consecutive I/O locations. The DIP-switch (SW1) is used to set the base address for these locations and the IRQ mode options. Be careful when selecting the base address as some selections conflict with existing PC ports. The following table shows the addressing options available. If different address options are required, please contact Sealevel Systems Technical Support about a custom PAL option.
When using Windows NT, the ‘Advanced Ports’ applet in the Control Panel should be launched and the oscillator value entered manually in the ‘Advanced’ tab, or all data rates will be eight (8) times the selected rate. For example if a data rate of 19.2Kbps is selected, the actual data rate will be 153.6Kbps. When using any other OS (i.e. Linux, or QNX) the following table should be used. For this Data Rate 1200 bps 2400 bps 4800 bps 9600 bps 19.2K bps 57.6 K bps 115.2 K bps 230.4K bps 460.8K bps 921.
Software Installation Windows 98/ME/2000/XP Installation 1. Start Windows. 2. Insert the Sealevel Systems CD in to your CD drive. 3. If ‘Auto-Start’ is enabled for this drive the software will automatically launch. Otherwise, point your browser to the ‘Index.htm’ on the root directory of the CD 4. Select ‘Install Software’. 5. Select the Item number for your adapter from the listing. 6. Select ‘Windows 98/ME/2000/XP’.
Linux Installation Refer to D:\software\seacom\Other\Linux\Linux.serial.readme (where D: = your CDROM driver letter) found on the Sealevel Systems CD. This file contains valuable information on installing your adapter in the various Linux releases. Also in this sub-directory is the Linux SerialHOWTO. These files explain typical Linux serial implementations, as well as informing the user to Linux syntax and preferred practices. QNX Refer to D:\software\seacom\Other\QNX6\Install.
Physical Installation Extreme care should be taken when installing the SIO4-104.232 to avoid causing damage to the connectors. After the adapter is installed, connect your I/O cable to P4.. Refer to Card Setup for information on setting the address and jumper options before inserting the SIO4-104.232 onto the stack. Do not install the Adapter in the machine until the software has been fully installed. 1. Turn off power. Disconnect the power cord. 2. Gently insert the SIO4-104.
Physical Connection The port signals for the SIO4-104.232 are physically connected via a 40-pin box header. The following table shows connector P4’s pin-out. Port4 Port3 Port2 Port1 P4 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 Signal Name DCD4 DSR4 RD4 RTS4 TD4 CTS4 DTR4 RI4 GND4 GND3 RI3 DTR3 CTS3 TD3 RTS3 RD3 DSR3 DCD3 DCD2 DSR2 RD2 RTS2 TD2 CTS2 DTR2 RI2 GND2 GND1 RI1 DTR1 CTS1 TD1 RTS1 RD1 DSR1 DCD1 Pins 37, 38, 39, and 40 are no connects.
Available for use with the SIO4-104.232 are the CA228, the CA110/CA143, and the CA222/TB10 combination cables. These cables terminate the SIO4-104.232 40-pin header to four DB9M connectors. This termination provides the standard DB9 pin out for RS-232 (EIA/TIA574) in RS-232 mode. The following table illustrates the DB9 pin out when using any of these optional cables.
Electrical Characteristics Specifications Receiver Inputs • • • Voltage Range: ±15V Input Threshold Low: 0.8V Min, 1.5V Typical Input Threshold High: 2.4V Max, 1.8V Typical Driver Outputs • • Output Voltage Swing: ±5V Min, ±5.4V Typical @ 3K Ohm Load Short-circuit current: ±60mA Max, ±35mA Typical @ VOUT = 0V Temperature Range • • Operating: Storage: 0°C – 70°C -50°C – 105°C Power Requirements • +5VDC @ 794mA Physical Dimensions • • Length: 3.550 inches (9.017cm) Height: 3.775 inches (9.
Appendix A - Troubleshooting Following these simple steps can eliminate most common problems. 1. Install software first. After installing the software then proceed to Physical Installation section of the manual. 2. Identify all I/O adapters currently installed in your system. This includes your on-board serial ports, controller cards, sound cards etc. The I/O addresses used by these adapters, as well as the IRQ (if any) should be identified. 3.
Appendix B - How To Get Assistance Begin by reading through the Troubleshooting Guide in Appendix A. If assistance is still needed please see below. When calling for technical assistance, please have your user manual and current adapter settings. If possible, please have the adapter installed in a computer ready to run diagnostics. Sealevel Systems provides an FAQ section on its web site. Please refer to this to answer many common questions. This section can be found at http://www.sealevel.com/faq.
Appendix C – Electrical Interface RS-232 Quite possibly the most widely used communication standard is RS-232. This implementation has been defined and revised several times and is often referred to as RS-232-C/D/E or EIA/TIA-232C/D/E. It is defined as “Interface between Data Terminal Equipment and Data CircuitTerminating Equipment Employing Serial Binary Data Interchange”. The mechanical implementation of RS-232 is on a 25-pin D sub connector.
Appendix D - Asynchronous Communications Serial data communications implies that individual bits of a character are transmitted consecutively to a receiver that assembles the bits back into a character. Data rate, error checking, handshaking, and character framing (start/stop bits) are pre-defined and must correspond at both the transmitting and receiving ends. Asynchronous communications is the standard means of serial data communication for PC compatibles and PS/2 computers.
Appendix E – Silk Screen – 3542 PCB © Sealevel Systems, Inc. - 15 - SIO4-104.
Warranty Sealevel's commitment to providing the best I/O solutions is reflected in the Lifetime Warranty that is standard on all Sealevel manufactured products. We are able to offer this warranty due to our control of manufacturing quality and the historically high reliability of our products in the field. Sealevel products are designed and manufactured at its Liberty, South Carolina facility, allowing direct control over product development, production, burn-in and testing. Sealevel Systems, Inc.
