SeaLevel 7202e Manual de usuario

Sealevel Systems, Inc. Sealevel.com 864-843-4343

Item# 7202e & 7202eS

©Sealevel Systems, Inc. 7202e Manual 1

SL9243 08/2013

CONTENTS ............................................................................................................................................................. 1

INTRODUCTION ..................................................................................................................................................... 2

BEFORE YOU GET STARTED .................................................................................................................................... 3

HARDWARE DESCRIPTION ..................................................................................................................................... 5

TECHNICAL DESCRIPTION ....................................................................................................................................... 6

SOFTWARE INSTALLATION ................................................................................................................................... 10

HARDWARE INSTALLATION.................................................................................................................................. 15

TECHNICAL SPECIFICATIONS ................................................................................................................................ 23

APPENDIX A –TROUBLESHOOTING...................................................................................................................... 24

APPENDIX B - HANDLING INSTRUCTIONS ............................................................................................................. 29

APPENDIX C –ELECTRICAL INTERFACE ................................................................................................................. 30

APPENDIX D –ASYNCHRONOUS COMMUNICATIONS .......................................................................................... 31

APPENDIX E –MECHANICAL DRAWING ............................................................................................................... 32

WARRANTY.......................................................................................................................................................... 33

©Sealevel Systems, Inc. 7202e Manual 2

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The Sealevel COMM+232.PCIe (Item# 7202e) provides a PCI Express 1.0a compliant interface

adapter with two asynchronous RS-232 serial ports for industrial automation and control

applications and support data rates to 921.6K bps.

All modem control signals are implemented for maximum compatibility with a wide range of

serial peripherals. The Sealevel SeaCOM software driver and utilities make installation and

operation easy on the XP, Vista, Windows 7, and Windows 8 operating systems.

The 7202e ships with a low profile PC bracket for use in systems with a low profile PCI Express

slot. If you need a standard size PC bracket, order the 7202eS.

PCI Express two-port serial interface adapter

High performance 16C950 UART with 128-byte FIFOs

Each port supports data rates to 921.6K bps

Oscillator and clock prescalar support wide range of baud rates

Supports 9-bit protocol framing

PCI Express 1.0a compliant via X1 connector

Compatible with all low profile and standard size PCI Express slots

All modem control signals implemented in RS-232 mode

Includes 36” cable that terminates to two DB9M connectors

©Sealevel Systems, Inc. 7202e Manual 3

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Depending on the PC bracket ordered, the 7202e is shipped with the following items. If any of

these items are missing or damaged, please contact Sealevel for replacement.

COMM+232.PCIe–Two-Port RS-232 Serial Interface

7202e –PCI Express Board with Low Profile PC Bracket

7202eS –PCI Express Board with Standard Height PC Bracket

CA203 –DB25F to (2) DB9M Cable, 36” in Length

Sealevel Software CD –SeaCOM software and user manual

Warning - The highest level of importance used to stress a condition where damage

could result to the product or the user could suffer serious injury.

Important –The middle level of importance used to highlight information that might

not seem obvious or a situation that could cause the product to fail.

Note –The lowest level of importance used to provide background information,

additional tips, or other non-critical facts that will not affect the use of the product.

©Sealevel Systems, Inc. 7202e Manual 4

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Depending upon your application, you are likely to find one or more of the following items

useful with the 7202e. All items can be purchased from our website (www.sealevel.com) by

calling our sales team at (864) 843-4343.

DB9F to DB25M (RS-232) Extension Cable (Item# CA177)

The CA177 is a standard AT-style RS-232 modem

cable with a DB9F connector on one end and a DB25M

connector on the other. This cable is 72 inches in

length.

DB9F to DB9M Extension Cable (Item# CA127)

The CA127 allows users to extend a DB9 cable up to

six feet. The connectors are pinned one-to-one so the

cable is compatible with any device or cable that has

DB9 connectors.

DB9F to RJ45 Modular Adapter (Item# RJ9S8)

The RJ9S8 is a DB9 female to RJ45 adapter. It can be

configured without tools and is an excellent choice for

using available infrastructure wiring.

©Sealevel Systems, Inc. 7202e Manual 5

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The 7202e is a low profile PCI Express 1.0a compliant board via single-lane x1 slot. It can be

used in any single- or multi-lane PCI Express slot. It is available in standard height PCI Express

as item# 7202eS.

The board integrates a DB25 male connector for interfacing the two serial ports via the included

cable.

The 7202e ships with a two-port cable (Item# CA203) that includes a pair of DB9 male serial

connectors. The pin out for these connectors is detailed in the following Technical Description

section.

©Sealevel Systems, Inc. 7202e Manual 6

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Each serial port utilizes a 16C950 UART featuring programmable baud rates, data format,

interrupt control and industry-leading 128-byte transmit and receive FIFOs. This high-

performance UART includes 9-bit framing support and is fully software compatible with legacy

16550 applications. In addition, the 14.7456 oscillator and UART’s flexible clock prescaler

supports the widest range of standard and non-standard baud rates to 921.6K bps. Refer to

Appendix C for cable length limitations.

The 7202e board includes a DB25 male connector for attaching the included cable (Item#

CA203). The pin out for the DB25M connector is shown in the table below.

Port 1 Pin#

Port 2 Pin#

RS-232

CTS

DCD

RTS

DSR

DTR

GND

©Sealevel Systems, Inc. 7202e Manual 7

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The 7202e includes a cable (Item# CA203) with a DB25 female connector terminating to a pair

of DB9 male connectors. The DB25F connector on the cable plugs into the DB25M connector on

interface board. The DB9M connectors are compatible with a variety of serial peripherals. The

pin assignments for the supported electrical interfaces are shown in the tables below.

These RS-232 pin assignments meet EIA/TIA/ANSI-574 DTE specifications for DB9 type

connectors.

Pin #

Signal

Name

Mode

DCD

Data Carrier Detect

Input

Receive Data

Input

Transmit Data

Output

DTR

Data Terminal Ready

Output

GND

Ground

DSR

Data Set Ready

Input

RTS

Request To Send

Output

CTS

Clear To Send

Input

Ring Indicator

Input

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, Inc. 7202e Manual 8

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The 7202e utilizes a 14.7456MHz oscillator, which is automatically entered by the SeaCOM

driver under Windows 2000/XP/Vista/7 operating systems. The oscillator value can be found in

the COM port properties of Device Manager under the ‘Advanced Tab’.

The high-speed oscillator and the UART’s flexible clock prescaler support a wide range of

standard and non-standard baud rates. You simply need to select the appropriate baud rate in

your communications software and the driver will calculate the closest matching baud rate.

When you use the board in other operating systems, the baud rate you select is multiplied by

eight resulting in the actual, faster baud rate. This allows the board to achieve data rates to

921.6K bps.

The following table shows common baud rates and the baud rates you need to select in your

application running on operating systems other than Windows.

For this Data Rate

Choose this Data Rate

1200 bps

150 bps

2400 bps

300 bps

4800 bps

600 bps

9600 bps

1200 bps

19.2K bps

2400 bps

38.4K bps

4800 bps

57.6K bps

7200 bps

115.2 K bps

14.4K bps

230.4K bps

28.8K bps

460.8K bps

57.6 K bps

921.6K bps

115.2 K bps

©Sealevel Systems, Inc. 7202e Manual 9

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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

768

2400 bps

384

4800 bps

192

9600 bps

19.2K bps

38.4K bps

57.6K bps

115.2K bps

230.4K bps

460.8K bps

921.6K bps

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