Impulse 3405 User Manual

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VERSA COMM+4/EX™

USER MANUAL

Part #3405

Sealevel Systems, Inc. Telephone: (864) 843-4343 PO Box 830 Fax: (864) 843-3067

Liberty, SC 29657 USA www.sealevel.com

Contents

INTRODUCTION ........................................................................ 1

OVERVIEW......................................................................................1

WHAT’S INCLUDED.........................................................................1

FACTORY DEFAULT SETTINGS ........................................................1

CARD SETUP ............................................................................ 2

ADDRESS SELECTION......................................................................2

JUMPER SELECTIONS ......................................................................4

IRQ Selection..............................................................................4

INTERRUPT MODES.........................................................................5

CLOCK MODES ...............................................................................6

BAUD RATES AND DIVISORS FOR THE ‘DIV1’ MODE .......................7

BAUD RATES AND DIVISORS FOR THE ‘DIV2’ MODE .......................8

INSTALLATION ......................................................................... 9

OPERATING SYSTEM INSTALLATION ...............................................9

For Windows Users.....................................................................9

Other Operating Systems ............................................................9

SYSTEM INSTALLATION ..................................................................9

TECHNICAL DESCRIPTION .................................................... 10

FEATURES.....................................................................................10

INTERRUPT STATUS PORT.............................................................10

CONNECTOR PIN ASSIGNMENTS....................................................11

DB-25 Male (RS-232 DTE)......................................................11

DB-9 Male (EIA-574 DTE)......................................................11

DB-37 Male ..............................................................................12

SPECIFICATIONS .................................................................... 13

ENVIRONMENTAL SPECIFICATIONS ...............................................13

MANUFACTURING.........................................................................13

POWER CONSUMPTION .................................................................13

MEAN TIME BETWEEN FAILURES (MTBF) ...................................13

PHYSICAL DIMENSIONS.................................................................13

PPENDIX A - TROUBLESHOOTING ...................................... 14

PPENDIX B - HOW TO GET ASSISTANCE............................ 16

APPENDIX C - ELECTRICAL INTERFACE .............................. 17

RS-232.........................................................................................17

PPENDIX D - ASYNCHRONOUS COMMUNICATIONS ............ 18

APPENDIX E - SILK-SCREEN ................................................. 19

APPENDIX F - SCHEMATIC .................................................... 20

APPENDIX G - COMPLIANCE NOTICES ................................. 22

FEDERAL COMMUNICATIONS COMMISSION STATEMENT...............22

EMC DIRECTIVE STATEMENT ......................................................22

WARRANTY............................................................................ 23

Figures

Figure 1 - Available Address Combinations ............................................2

Figure 2 - Address Selection Table ...........................................................3

Figure 3 - Port to Connector Table ..........................................................3

Figure 4 – Headers J1B – J4B, IRQ Selection.........................................4

Figure 5 - Header J1A, Normal IRQ Mode .............................................5

Figure 6 - Header J1A & J2A, Shared IRQ Mode..................................5

Figure 7 - Clocking Mode ‘Divide By 4’...................................................6

Figure 8 - Clocking Mode ‘Divide By 2’...................................................6

Figure 9 - Clocking Mode ‘Divide By 1’...................................................6

Figure 10 - Asynchronous Communications Bit Diagram....................18

Introduction

Overview

The Sealevel Systems VERSA COMM+4/EX provides the PC with four RS-232 asynchronous ports. The VERSA COMM+4/EX allows for connection to any device utilizing the RS-232 electrical interface, such as modems, data-entry terminals, and plotters.

What’s Included

The VERSA COMM+4/EX is shipped with the following items. If any of these items is missing or damaged, contact the supplier.

• VERSA COMM+4/EX Serial I/O Adapter

• DB-37 to four DB-25 ‘Spider Cable’ (DB-9 Spider Cable is

available)

• Sealevel Software

Factory Default Settings

The VERSA COMM+4/EX factory default settings are as follows:

Port # Base Address IRQ IRQ Mode Clock Divisor

Port 1 280 5 M 4 Port 2 288 5 S 4 Port 3 290 5 S 4 Port 4 298 5 S 4

To install the VERSA COMM+4/EX using factory default settings, refer to Installation on page 9.

For your reference, record installed VERSA COMM+4/EX settings below:

Port # Base Address IRQ IRQ Mode Clock Divisor

Port 1 Port 2 Port 3 Port 4

Sealevel Systems VERSA COMM+4/EX Page 1

Card Setup

The VERSA COMM+4/EX contains several jumper straps that must be set for proper operation.

Address Selection

Each port on the VERSA COMM+4/EX occupies eight consecutive I/O locations. A DIP-switch is used to set the base address for these locations.

The VERSA COMM+4/EX has a unique addressing scheme that allows it to be completely compatible with Sealevel Systems’ older four port RS-232 interface adapters (p/n 3064, 3065, 3066 and 3400) and provides the ability to select specific non-linear address combinations (i.e. 3F8, 2F8, 3E8, 2E8).

The first addressing scheme allows the user to select the addresses for its ports from a table of available address combinations.

The following table shows the addressing combinations available. If different address combinations are required, please contact Sealevel Systems Technical Support about custom PAL options.

Switch 6 Switch 7 Switch 8 Port 1 Port 2 Port 3 Port 4

On On Off 3F8 2F8 3E8 2E8 On Off On 2F8 3E8 2E8 2E0

On Off Off 3E8 2E8 280 288 Off On On 500 508 510 518 Off On Off 580 588 590 598 Off Off On 1500 1508 1510 1518 Off Off Off 3220 3228 4220 4228

On On On Addresses set up by switches 1 - 5

Figure 1 - Available Address Combinations

Note: Each COM: port in the system should have a unique address. Typically

COM1: - COM4: addresses are 3F8, 2F8, 3E8 and 2E8 Hex.

Refer to Appendix A for common address contentions.

Sealevel Systems VERSA COMM+4/EX Page 2

Card Setup

The second mode of address selection provides the compatibility mode. In this mode the DIP-switch sets the base address and the adapter occupies 32 consecutive I/O locations. The following table illustrates the location of each port and its relationship to the other ports.

Note: For switches 1 - 5 to become active, switches 6, 7 & 8 must be set in the ‘On’ or ‘Up’ position.

Switch Settings

Address lines Æ A9 A8 A7 A6 A5

Address Selected 1 2 3 4 5

280-29F Off On Off On On

2A0-2BF Off On Off On Off

380-39F Off Off Off On On

1A0-1BF On Off Off On Off

2E0-2FF Off On Off Off Off

Figure 2 - Address Selection Table

The following illustration shows the correlation between the DIP-switch setting and the address bits used to determine the base address. In the example below, address 2E0 is selected as a base. Address 2E0 in binary is XX 10 111X XXXX where X = a non-selectable address bit.

A9 A5

OFF

1 2 3 4 5 6 7 8

Port # Connector Location Address Example (Base=2E0)

1 2 3 4

Sealevel Systems VERSA COMM+4/EX Page 3

1 Base+0 2E0-2E7 2 Base+8 2E8-2EF 3 Base+16 2F0-2F7 4 Base+24 2F8-2FF

Figure 3 - Port to Connector Table

Card Setup

Jumper Selections

For ease of configuration, the headers are grouped by port. Port one headers have a ‘J1’ prefix, Port two headers have the ‘J2’ prefix, etc. For example, the header that controls the Port one IRQ selection is J1B, the header that controls the Port 2 IRQ selection is J2B. The silk-screen also provides information for configuring the adapter without the use of the manual. This is particularly useful in field re-configuration.

IRQ Selection

Headers J1B through J4B select the interrupt request for each serial port. If COM1: is selected, the corresponding jumper must be on the IRQ4 setting. If COM2: is selected, the corresponding jumper must be on IRQ3. (This only applies to the traditional DOS COM: port assignments, in Windows COM1: can use I/O address 300 and IRQ15 if it is available!)

34567 101112159

Figure 4 – Headers J1B – J4B, IRQ Selection

Note: Most DOS communications software applications default COM3: to IRQ4

and COM4: to IRQ3. This requires the sharing of interrupts between COM1: and COM3:, and between COM2: and COM4:. While this is the default, it is not always the preferred setting. Check your software configuration instructions to determine the most appropriate IRQ selection.

Any two or more ports can share a common IRQ by placing the jumpers on the same IRQ setting and setting the appropriate selections at J1A through J4A. When sharing IRQs, many operating systems (i.e. Windows NT) will require the location of the Interrupt Status Port (ISP). Please see Page 10 for a description of the ISP and how it is used.

Sealevel Systems VERSA COMM+4/EX Page 4

Card Setup

Interrupt Modes

Headers J1A through J4A select the interrupt modes for each port. Each port must be set in the correct mode to insure proper operation.

‘N’ indicates the (N)ormal, single interrupt per port mode. ‘S’ Indicates the (S)hared interrupt mode, which allows more than one port to access a single IRQ. ‘M’ indicates the inclusion of a 1K ohm pull-down resistor required on one port when sharing interrupts.

J1A

Figure 5 - Header J1A, Normal IRQ Mode

Set the jumpers to ‘S’ for shared interrupt mode on all blocks sharing an IRQ except one. Set that port block for ‘M’. This provides the pull-down resistor circuit that makes sharing IRQs possible. If you are using more than one VERSA COMM+4/EX or a compatible adapter in a bus you should only have one port set to ‘M’. The following example shows two ports sharing a single IRQ.

J1A

NSM

J2A

NSM

Figure 6 - Header J1A & J2A, Shared IRQ Mode

Set the jumper to ‘S’ if you are using more than one VERSA COMM+4/EX in a bus or to completely remove the pull-down resistor for hardware compatibility.

Setting the adapter in this configuration when it is not accompanied by a pull-down resistor will prevent the ports from triggering an interrupt.

Sealevel Systems VERSA COMM+4/EX Page 5

Card Setup

Clock Modes

The VERSA COMM+4/EX employs a unique clocking option that allows the end user to select from divide by 4, divide by 2 and divide by 1 clocking modes. This mode is selected at J5.

To select the Baud rates commonly associated with COM: ports (i.e. 2400, 4800, 9600, 19.2, … 115.2K Bps) place the jumper in the divide by 4 mode (silk-screen DIV4).

DIV1 DIV2 DIV4

Figure 7 - Clocking Mode ‘Divide By 4’

To double these rates up to a maximum rate for 230.4K bps place the jumper in the divide by 2 (silk-screen DIV2) position.

DIV1 DIV2 DIV4

Figure 8 - Clocking Mode ‘Divide By 2’

To select the maximum data rate (460.8K bps) place the jumper in the divide by 1 (silk-screen DIV1) position.

DIV1 DIV2 DIV4

Figure 9 - Clocking Mode ‘Divide By 1’

Sealevel Systems VERSA COMM+4/EX Page 6

Card Setup

Baud Rates and Divisors for the ‘Div1’ mode

The following table shows some common data rates and the rates you should choose to match them if using the adapter in the ‘Div1’ mode.

For this Data Rate Choose this Data Rate

1200 bps 300 bps 2400 bps 600 bps 4800 bps 1200 bps 9600 bps 2400 bps

19.2K bps 4800 bps

57.6 K bps 9600 bps

115.2 K bps 19.2K bps

230.4K bps 57.6 K bps

460.8K bps 115.2 K bps

If your communications package allows the use of Baud rate divisors, choose the appropriate divisor from the following table:

For this Data Rate Choose this Divisor

1200 bps 384 2400 bps 192 4800 bps 96 9600 bps 48

19.2K bps 24

38.4K bps 12

57.6K bps 8

115.2K bps 4

230.4K bps 2

460.8K bps 1

Sealevel Systems VERSA COMM+4/EX Page 7

Card Setup

Baud Rates and Divisors for the ‘Div2’ mode

The following table shows some common data rates and the rates you should choose to match them if using the adapter in the ‘Div2’ mode.

For this Data Rate Choose this Data Rate

1200 bps 600 bps 2400 bps 1200 bps 4800 bps 2400bps 9600 bps 4800 bps

19.2K bps 9600 bps

38.4K bps 19.2K bps

57.6 K bps 38.4K bps

115.2 K bps 57.6 K bps

230.4 K bps 115.2 K bps

If your communications package allows the use of Baud rate divisors, choose the appropriate divisor from the following table:

For this Data Rate Choose this Divisor

1200 bps 192 2400 bps 96 4800 bps 48 9600 bps 24

19.2K bps 12

38.4K bps 8

57.6K bps 4

115.2K bps 2

230.4K bps 1

Sealevel Systems VERSA COMM+4/EX Page 8

Installation

Operating System Installation

For Windows Users

Start by choosing Install Software at the beginning of the CD. Choose Asynchronous COM: Port Software, SeaCOM.

Other Operating Systems

Refer to the appropriate section of the Serial Utilities Software.

System Installation

The VERSA COMM+4/EX can be installed in any of the PC ISA expansion slots. The VERSA COMM+4/EX contains several jumper straps for each port that must be set for proper operation.

1. Turn off PC power. Disconnect the power cord.

2. Remove the PC case cover.

3. Locate an available slot and remove the blank metal slot cover.

4. Gently insert the VERSA COMM+4/EX into the slot. Make sure that the adapter is seated properly.

5. Replace the screw.

6. Replace the cover.

7. Install the “Spider Cable”.

8. Connect the power cord.

Installation is complete.

Sealevel Systems VERSA COMM+4/EX Page 9

Technical Description

The VERSA COMM+4/EX utilizes the 16C554 UART. This chip features programmable baud rate, data format, interrupt control and a 16-byte input and output FIFO, and is functionally 4 16C550 UARTs. A full array of advanced UARTs is also available for this card. Contact Sealevel Systems, Inc. for more information.

Features

• ‘Shareable’ IRQs allow more than one port to share a single IRQ with appropriate software drivers

• IRQs 3-7, 9-12, 15 supported

• 16C554 buffered Quad UART Standard

• 16 Bit address decode allows for easier integration

• Speeds up to 460.8 K bps

• Multiple clocking modes insuring compatibility with existing software

products

Interrupt Status Port

The VERSA COMM+4/EX provides the user with an Interrupt Status Port (ISP) for greater throughput when servicing multiple ports on a single interrupt line. The ISP is a read only 8-bit register that sets a corresponding bit when an interrupt is pending. Port 1 interrupt line corresponds with Bit D0 of the status port, Port 2 with D1 etc.

The ISP is located at Base+7 on each port (Example: Base = 280 Hex, Status Port = 287, 28F… etc.). This allows any one of eight locations to be read to obtain the value in the status register. All four status ports on the VERSA COMM+4/EX are identical, so any one of the four can be read to determine which interrupt is pending. In the following example Channel 2 has an interrupt pending. D4 through D7 are not driven into the interrupt status register and can be 1’s or 0’s.

Bit Position: 7 6 5 4 3 2 1 0 Value Read: 0 0 0 0 0 0

Sealevel Systems VERSA COMM+4/EX Page 10

Technical Description

Connector Pin Assignments

DB-25 Male (RS-232 DTE)

Signal Name Pin # Mode GND Ground 7 TD Transmit Data 2 Output RTS Request To Send 4 Output DTR Data Terminal Ready 20 Output RD Receive Data 3 Input CTS Clear To Send 5 Input DSR Data Set Ready 6 Input DCD Data Carrier Detect 8 Input RI Ring Indicator 22 Input

DB-9 Male (EIA-574 DTE)

Signal Name Pin # Mode GND Ground 5 TD Transmit Data 3 Output RTS Request To Send 7 Output DTR Data Terminal Ready 4 Output RD Receive Data 2 Input CTS Clear To Send 8 Input DSR Data Set Ready 6 Input DCD Data Carrier Detect 1 Input RI Ring Indicator 9 Input

Sealevel Systems VERSA COMM+4/EX Page 11

Technical Description

DB-37 Male

Port # 1 2 3 4

GND 33 14 24 5 TD 35 12 26 3 RTS 17 30 8 21 DTR 34 13 25 4 RD 36 11 27 2 CTS 16 31 7 22 DSR 18 29 9 20 DCD 37 10 28 1 RI 15 32 6 23

Technical Note: Please terminate any control signals that are not going to be used. The most common way to do this is connect RTS to CTS and RI. Also, connect DCD to DTR and DSR. Terminating these pins, if not used, will help insure you get the best performance from your adapter.

Sealevel Systems VERSA COMM+4/EX Page 12

Specifications

Environmental Specifications

Specification Operating Storage

Temperature

Range

Humidity Range

0º to 50º C

(32º to 122º F)

10 to 90% R.H.

Non-Condensing

Manufacturing

• All Sealevel Systems Printed Circuit boards are built to U.L. 94V0 rating and are 100% electrically tested. These printed circuit boards are solder mask over bare copper or solder mask over tin nickel.

Power Consumption

-20º to 70º C

(-4º to 158º F)

10 to 90% R.H.

Non-Condensing

Supply line

Rating

+12 VDC -12 VDC +5 VDC

60 mA 80 mA 210 mA

Mean Time Between Failures (MTBF)

Greater than 150,000 hours. (Calculated)

Physical Dimensions

Board length 5.2 inches (13.208 cm.) Board Height including Goldfingers 3.4 inches (8.636 cm.) Board Height excluding Goldfingers 3.1 inches (7.874 cm.)

Sealevel Systems VERSA COMM+4/EX Page 13

Appendix A - Troubleshooting

Serial Utility test software is supplied with the Sealevel Systems adapter and will be used in the troubleshooting procedures. By using this software and following these simple steps, most common problems can be eliminated without the need to call Technical Support.

1. 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.

2. Configure your Sealevel Systems adapter so that there is no conflict with currently installed adapters. No two adapters can occupy the same I/O address.

3. Make sure the Sealevel Systems adapter is using a unique IRQ The IRQ is typically selected via an on-board header block. Refer to the section on Card Setup for help in choosing an I/O address and IRQ.

4. Make sure the Sealevel Systems adapter is securely installed in a motherboard slot.

5. When running DOS, Windows 3.x or other operating systems refer to the Serial Utilities software for that operating system and the User Manual to verify that the Sealevel Systems adapter is configured correctly. The supplied software contains a diagnostic program 'SSD' that runs under DOS and will verify if an adapter is configured properly. This diagnostic program is written with the user in mind and is easy to use. Refer to the DIAG.txt file in the dos\diag directory for detailed instructions on using 'SSD'.

6. For Windows 95/98 and Windows NT, the diagnostic tool 'WinSSD' is installed in the Sealevel folder on the Start Menu during the setup process. First find the ports using the Device Manager, then use 'WinSSD' to verify that the ports are functional.

7. Always use the Sealevel Systems diagnostic software when troubleshooting a problem. This will help eliminate any software issues and identify any hardware conflicts.

Sealevel Systems VERSA COMM+4/EX Page 14

Appendix A - Troubleshooting

8. The following are known I/O conflicts:

• The 278 and 378 settings may conflict with your printer I/O adapter.

• 3B0 cannot be used if a Monochrome adapter is installed.

• 3F8-3FF is typically reserved for COM1:

• 2F8-2FF is typically reserved for COM2:

• 3E8-3EF is typically reserved for COM3:

• 2E8-2EF is typically reserved for COM4:

Sealevel Systems VERSA COMM+4/EX Page 15

Appendix B - How To Get Assistance

Please refer to Troubleshooting Guide prior to calling Technical Support.

1. Begin by reading through the Trouble Shooting Guide in Appendix A. If assistance is still needed please see below.

2. 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.

3. 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.htm

4. Sealevel Systems maintains a Home page on the Internet. Our home page address is www.sealevel.com updates, and newest manuals are available via our FTP site that can be accessed from our home page.

5. Technical support is available Monday to Friday from 8:00 a.m. to 5:00 p.m. eastern time. Technical support can be reached at (864) 843-4343.

. The latest software

RETURN AUTHORIZATION MUST BE OBTAINED FROM SEALEVEL SYSTEMS BEFORE RETURNED MERCHANDISE WILL BE ACCEPTED. AUTHORIZATION CAN BE OBTAINED BY CALLING SEALEVEL SYSTEMS AND REQUESTING A RETURN MERCHANDISE AUTHORIZATION (RMA) NUMBER.

Sealevel Systems VERSA COMM+4/EX Page 16

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-232-C/D/E. It is defined as “Interface between

Data Terminal Equipment and Data Circuit- Terminating Equipment Employing Serial Binary Data Interchange”. The mechanical implementation of RS-232 is

on a 25-pin D sub connector. The IBM PC computer defined the RS-232 port on a 9 pin D sub connector and subsequently the EIA/TIA approved this implementation as the EIA/TIA-574 standard. This standard has defined as the “9-Position Non-Synchronous Interface between Data Terminal Equipment and

Data Circuit-Terminating Equipment Employing Serial Binary Data Interchange”. Both implementations are in wide spread use and will be referred

to as RS-232 in this document. RS-232 is capable of operating at data rates up to 20K bps / 50 ft. The absolute maximum data rate may vary due to line conditions and cable lengths. RS-232 often operates at 38.4K bps over very short distances. The voltage levels defined by RS-232 range from -12 to +12 volts. RS-232 is a single ended or unbalanced interface, meaning that a single electrical signal is compared to a common signal (ground) to determine binary logic states. A voltage of +12 volts (usually +3 to +10 volts) represents a binary 0 (space) and 12 volts (-3 to -10 volts) denote a binary 1 (mark). The RS-232 and the EIA/TIA-574 specification define two types of interface circuits Data Terminal Equipment (DTE) and Data Circuit-Terminating Equipment (DCE). The Sealevel Systems Adapter is a DTE interface.

Sealevel Systems VERSA COMM+4/EX Page 17

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. The original PC was equipped with a communication or COM: port that was designed around an 8250 Universal Asynchronous Receiver Transmitter (UART). This device allows asynchronous serial data to be transferred through a simple and straightforward programming interface. A starting bit followed by a pre-defined number of data bits (5, 6, 7, or 8) defines character boundaries for asynchronous communications. The end of the character is defined by the transmission of a pre-defined number of stop bits (usually 1, 1.5 or 2). An extra bit used for error detection is often appended before the stop bits.

Idle state of line

5 to 8 Data Bits

Figure 10 - Asynchronous Communications Bit Diagram

Odd, Even or Unused

P BIT

STOP

Remain Idle o next start bit

1.5

This special bit is called the parity bit. Parity is a simple method of determining if a data bit has been lost or corrupted during transmission. There are several methods for implementing a parity check to guard against data corruption. Common methods are called (E)ven Parity or (O)dd Parity. Sometimes parity is not used to detect errors on the data stream. This is refereed to as (N)o parity. Because each bit in asynchronous communications is sent consecutively, it is easy to generalize asynchronous communications by stating that each character is wrapped (framed) by pre-defined bits to mark the beginning and end of the serial transmission of the character. The data rate and communication parameters for asynchronous communications have to be the same at both the transmitting and receiving ends. The communication parameters are baud rate, parity, number of data bits per character, and stop bits (i.e. 9600,N,8,1).

Sealevel Systems VERSA COMM+4/EX Page 18

Appendix E - Silk-Screen

3.1"

5.2"

3.4"

Sealevel Systems VERSA COMM+4/EX Page 19

Appendix F - Schematic

Sealevel Systems VERSA COMM+4/EX Page 20

Appendix F - Schematic

P3:36

P3:17

P3:18

P3:34

P3:37

P3:15

P3:35

P3:16

RI1/

RD1/

TD1/

RTS1/

DSR1/

DTR1/

DCD1/

CTS1/

RA1

RA24RA35DY16DY27RA48DY39RA5

VCC-

VCC+

GD75232

GND12RY513DA314RY415DA216DA118RY217RY319RY120VCC

+5V +12V -12V

RI1

RD1

CTS1

DCD1

DSR1

RI1

RX1

CD1

DSR1

+5V

FOR 16C654 CUT CONNECTION

BETWEEN PINS 1 & 2 ON E12

ON BOTTOM SIDE OF BO ARD

16C554

1D32D43D54D65

66D067D168

RESGND

BD0

BD1

BD2

BD3

GND

CTS1

DTR1

BD4

RTS1

DTR1

BD5

TD1

RD2

TX1

BD6

BD7

P3:30

P3:13

P3:10

P3:32

P3:11

RI2/

RD2/

RTS2/

DTR2/

DCD2/

RA1

RA24RA35DY16DY27RA48DY39RA5

VCC+

RI2

CTS2

DCD2

DSR2

DTR2

RI2

RX2

CD2

CTS2

DTR2

DSR2

INT121INT249INT355INT465INTS EL31NC38RXRDY39TXRDY

INT1INT1

INT2INT2

INT3INT3

INT4INT4

P3:29

P3:12

P3:31

TD2/

DSR2/

CTS2/

TD2

RTS2

TX2

RTS2

VCC-

GD75232

GND12RY513DA314RY415DA216DA118RY217RY319RY120VCC

RI3

RD3

RTS3

CTS3

DCD3

DTR3

DSR3

RI3

RX3

CD3

CTS3

DTR3

DSR3

RESET18IOW52IOR34A033A132A220CS250CS354CS4

BA0

BIOR

BIOW

BRESET

P3:8

P3:25

P3:28

P3:6

P3:27

P3:9

P3:26

P3:7

RI3/

RD3/

TD3/

RTS3/

DTR3/

DCD3/

DSR3/

CTS3/

RA1

RA24RA35DY16DY27RA48DY39RA5

VCC-

VCC+

TD3

RD4

TX3

RTS3

BA2

BA1

GD75232

GND12RY513DA314RY415DA216DA118RY217RY319RY120VCC

RI4

TD4

RTS4

CTS4

DTR4

DSR4

DCD4

RI4

TX3

RX4

CD4

RTS4

CTS4

DTR4

DSR4

XTAL1

XTAL216CS1

CLK

CS4/

CS3/

CS2/

CS1/

P3:21

P3:4

P3:1

P3:23

P3:2

P3:20

P3:3

P3:22

RI4/

RD4/

TD4/

RTS4/

DTR4/

DCD4/

DSR4/

CTS4/

RA1

RA24RA35DY16DY27RA48DY39RA5

VCC-

VCC+

5 4 2

GD75232

GND12RY513DA314RY415DA216DA118RY217RY319RY120VCC

GND

FOR TRI-STATE IRQ CUT

CONNECTION BETWEEN

PINS 1 & 2 ON E13 ON

BOTTOM SIDE OF BOARD

+5V

BA2

BA0

BA1

BD7

BD6

BD5

BD0

BD1

BD2

BD3

BD4

SHEET 1

CLK

CS1/

CS2/

CS3/

CS4/

BIOR

BIOW

BRESET

SHEET 1

GND

4 3 2 1

1N4148

J1B

181614121086421

537

1113151719 20

IRQ7

IRQ9

IRQ6

IRQ5

IRQ3

IRQ4

IRQ11

IRQ10

IRQ12

IRQ15

B21

B22

B23

B24

B25

P1 D1

GND

4 3 2 1

1N4148

J2B

181614121086421

537

1113151719 20

GND

4 3 2 1

1N4148

J3B

181614121086421

537

1113151719 20

GND

4 3 2 1

1N4148

J4B

181614121086421

537

1113151719 20

Sealevel Systems VERSA COMM+4/EX Page 21

Appendix G - Compliance Notices

Federal Communications Commission Statement

FCC - This equipment has been tested and found to comply with the limits for Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference. In such case the user will be required to correct the interference at his own expense.

EMC Directive Statement

Products bearing the CE Label fulfill the requirements of the EMC directive (89/336/EEC) and of the low-voltage directive (73/23/EEC) issued by the European Commission.

To obey these directives, the following European standards must be met:

• EN55022 Class A - “Limits and methods of measurement of radio interference characteristics of information technology equipment”

• EN55024-‘Information technology equipment Immunity characteristics Limits and methods of measurement.

• EN60950 (IEC950) - “Safety of information technology

equipment, including electrical business equipment”

Warning This is a Class A Product. In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures.

Always use cabling provided with this product if possible. If no cable is provided or if an alternate cable is required, use high quality shielded cabling to maintain compliance with FCC/EMC directives.

Sealevel Systems VERSA COMM+4/EX Page 22

Warranty

Sealevel Systems, Inc. provides a limited lifetime warranty. Should this product fail to be in good working order at any time during this period, Sealevel Systems will, at it’s option, replace or repair it at no

additional charge except as set forth in the following terms. This warranty does not apply to products damaged by misuse, modifications, accident or disaster.

Sealevel Systems assumes no liability for any damages, lost profits, lost savings or any other incidental or consequential damage resulting from the use, misuse of, or inability to use this product. Sealevel Systems will not be liable for any claim made by any other related party.

Sealevel Systems, Incorporated 2779 Greenville Highway P.O. Box 830 Liberty, SC 29657 USA (864) 843-4343 FAX:(864) 843-3067 www.sealevel.com

email: support@sealevel.com

Technical Support is available from 8 a.m. to 5 p.m. Eastern time.

Monday - Friday

Trademarks

Sealevel Systems, Incorporated acknowledges that all trademarks referenced in this manual are the service mark, trademark, or registered trademark of the respective company.

VERSA COMM+4/EX is a trademark of Sealevel Systems, Incorporated.

Sealevel Systems VERSA COMM+4/EX Page 23

Impulse 3405 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Introduction

Card Setup

Installation

Technical Description

Specifications

Appendix A - Troubleshooting

Appendix B - How To Get Assistance

Appendix C - Electrical Interface

Appendix D - Asynchronous Communications

Appendix E - Silk-Screen

Appendix F - Schematic

Appendix G - Compliance Notices

Warranty