SeaLevel REL-16.PCI User manual

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© Sealevel Systems, Inc. 8003 Manual | SL9077 9/2021
REL-16.PCI
User Manual | 8003

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© Sealevel Systems, Inc. 8003 Manual | SL9077 9/2021
Contents
CONTENTS............................................................................................................................................................................................................................2
INTRODUCTION...................................................................................................................................................................................................................3
BEFORE YOU GET STARTED..............................................................................................................................................................................................4
INSTALLATION.....................................................................................................................................................................................................................5
PROGRAMMING THE REL-16.PCI.....................................................................................................................................................................................7
ELECTRICAL CHARACTERISTICS...................................................................................................................................................................................10
SPECIFICATIONS................................................................................................................................................................................................................11
EXAMPLE CIRCUITS .........................................................................................................................................................................................................12
APPENDIX A –TROUBLESHOOTING.............................................................................................................................................................................13
APPENDIX B –HOW TO GET ASSISTANCE..................................................................................................................................................................14
APPENDIX C –SILK SCREEN –8003 PCB.................................................................................................................................................................15
APPENDIX D –COMPLIANCE NOTICES........................................................................................................................................................................16
WARRANTY .........................................................................................................................................................................................................................17

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© Sealevel Systems, Inc. 8003 Manual | SL9077 9/2021
Introduction
Overview
The REL-16.PCI provides 16 reed relay outputs. The outputs offer high quality, long life, low current (10 Watt
maximum), dry contact switch closures. Reed relays are well suited for low current applications. The relays
are normally open and will close when energized. The board is PCI bus specification 2.1 compliant.
The REL-16.PCI is designed to be used with a variety of Operating Systems including Windows
98/NT/ME/2000/XP, Linux, and DOS. The SeaI/O API (Application Programmer Interface) software
provides a variety of useful high-level function calls implemented as a Windows dynamic link library (DLL)
and as a Linux kernel module and library. In addition to the API, SeaI/O includes sample code and utilities
to simplify software development.
Other Sealevel PCI Digital I/O Products
Model No.
Part No.
Description
PIO-24.PCI
(P/N 8008)
- 24 TTL Inputs/Outputs
PIO-32.PCI
(P/N 8010)
- 32 TTL Inputs/Outputs
PIO-48.PCI
(P/N 8005)
- 48 TTL Inputs/Outputs
PIO-96.PCI
(P/N 8009)
- 96 TTL Inputs/Outputs
DIO-16.PCI
(P/N 8002)
- 8 Reed Relay Outputs/8 Opto-isolated Inputs
DIO-32.PCI
(P/N 8004)
- 16 Reed Relay Outputs/16 Opto-isolated Inputs
ISO-16.PCI
(P/N 8006)
- 16 Opto-isolated Inputs
REL-32.PCI
(P/N 8007)
- 32 Reed Relay Outputs
PLC-16.PCI
(P/N 8011)
- 8 Form C Relay Outputs/8 Opto-isolated Inputs

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© Sealevel Systems, Inc. 8003 Manual | SL9077 9/2021
Before You Get Started
What’s Included
The REL-16.PCI is shipped with the following items. If any of these items are missing or damaged, please
contact Sealevel for replacement.
•REL-16.PCI Adapter
Advisory Conventions
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.
Optional Items
Depending upon your application, you are likely to find one or more of the following items useful for
interfacing the REL-16.PCI to real-world signals. All items can be purchased from our website
(http://www.sealevel.com) or by calling [phone].
•DB-37 Male to DB-37 Female 6’ Cable - (Part Number CA112)
This cable extends the DB-37 connector on the REL-16.PCI to six feet and is pinned one-
to-one.
•DB-37 Male/Female Terminal Block (Part Number TB02-KT)
Break out serial and digital connectors to 37 screw terminals for easy field connection.
The TB02 terminal block is designed with both DB-37 male and female connectors,
therefore; it can be used with any DB-37 board regardless of the board's port gender.
•Cable and Terminal Block Kit (Part Number KT101)
For convenient and easier ordering, the KT101 includes the TB02-KT terminal block and
CA112 cable in a single kit.

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© Sealevel Systems, Inc. 8003 Manual | SL9077 9/2021
Installation
Operating System Installation
For Windows Users
Begin by locating, selecting, and installing the correct software - SeaIO Software.
SeaIO Software can also be downloaded from the 8003-product page: REL-16.PCI Product Page
Other Operating Systems
Refer to the appropriate section of the Serial Utilities Software.
Windows NT Card Installation: After accomplishing the above steps, bring up the Control Panel and
double-click on the SeaI/O Devices icon. To install a new card, click "Add Port". Repeat this
procedure for as many SeaI/O cards as you wish to install.
LINUX INSTALLATION
Refer to Linux Archives - Sealevel. This link contains valuable information on installing your serial
adapter in the various Linux releases. Also included is a series of files explaining proper Linux syntax and
typical Linux serial implementations.
For additional software support, please call Sealevel Systems’ Technical Support, [phone]. Our
technical support is free and available from 8:00AM-5PM Eastern Time, Monday through Friday. For
email support contact: mailto:sup[email protected].

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INSTALLATION, CONTINUED
Hardware Installation
The adapter can be installed in any 5V PCI expansion slot.
Do not install the Adapter in the machine until the software has been fully installed.
1. Turn off PC power. Disconnect the power cord.
2. Remove the PC case cover.
3. Locate an available 5V PCI slot and remove the blank metal slot cover.
4. Gently insert the PCI adapter into the slot. Make sure that the adapter is seated
properly.
5. After the adapter has been installed, the cables should be routed thru the opening in
the bracket. This bracket also features a strain relief function that should be used to
prevent un-expected cable removal.
6. Replace the screw you removed for the blank and use it to secure the adapter into the
slot. (This is required to ensure FCC Part 15 compliance.)
7. Replace the cover.
8. Connect the power cord
Installation is finished.

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© Sealevel Systems, Inc. 8003 Manual | SL9077 9/2021
Programming the REL-16.PCI
Sealevel’s SeaI/O software is provided to assist in the development of reliable applications for the Sealevel
Systems family of digital I/O adapters. The software also includes driver functions for use in accessing
the I/O as well as helpful samples and utilities.
Programming for Windows
The SeaI/O API (Application Programmer Interface) provides a variety of useful
high-level function calls implemented in a Windows dynamic link library (DLL). The
API is defined in the help file (Start/Programs/SeaIO/SeaIO Help) under
“Application Programmers Interface”. This help file also includes detailed
information dealing with installation / removal of the software and information
about latency, logic states, and device configuration.
For C language programmers we recommend using the API to access the REL-
16.PCI. If you are programming in Visual Basic, using the ActiveX control included
with SeaI/O is advised.
Samples and Utilities
A variety of sample programs and utilities (both executable and source code) are
included with SeaI/O. Further documentation on these samples can be found by
selecting “Start/Programs/SeaIO/Sample Application Description”. Information
about where the files are physically stored on your disk is also included in this
same file.
Programming for Linux
SeaI/O for Linux consists of two major parts: a kernel module and a library. The
kernel module is a simple IO pass-through device, allowing the library to handle the
more sophisticated functions provided to SeaI/O users. It is provided in a ‘tarball’
format and can easily be compiled and included in the kernel build.
Digital I/O Interface
The REL-16.PCI provides two parallel reed relay output ports. The ports are
organized as ports A, B, C, and D. In order to maintain compatibility with the
existing ISA interface adapter (Sealevel Item# 3095), ports C and D (Base
address+2 and 3) are the reed relay output port addresses.
Output Ports (Reed Relay)
Reed relays provide very high quality, long life, low current (10 Watt maximum), dry
contact switch closures. Reed relays are not suited for high current applications,
and can be destroyed by inductive load switching, where a spark occurs across the
contacts internally. The relays are normally open, and close when energized.

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PROGRAMMING THE REL-16.PCI, CONTINUED
Output Ports (Reed Relay) Pin Assignments
Port C Bit
Relay
P3 Pin
C0
K1
2,20
C1
K2
3,21
C2
K3
4,22
C3
K4
5,23
C4
K5
6,24
C5
K6
7,25
C6
K7
8,26
C7
K8
9,27
D0
K9
10,28
D1
K10
11,29
D2
K11
12,30
D3
K12
13,31
D4
K13
14,32
D5
K14
15,33
D6
K15
16,34
D7
K16
17,35
Ground
18,36,37
+ 5 Volts
19
+ 12 Volts
1
Direct Hardware Control
In systems where the user’s program has direct access to the hardware (i.e., DOS) the table below gives
the mapping and functions that the REL-16.PCI provides.
Function Available
Port
Port Address
Port Type
A
Base + 0
Unused
B
Base + 1
Unused
R/W
C
Base + 2
Output Port
R/W
D
Base + 3
Output Port
R/W = Read or Write

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© Sealevel Systems, Inc. 8003 Manual | SL9077 9/2021
PROGRAMMING THE REL-16.PCI, CONTINUED
Reading the Outputs
The relay ports return the ones complement of the value that is currently being used to drive the relays.
When using the API the actual value is returned not the complement of the value.
Writing the Outputs
The output ports are the only ports that can be written. The relays on a standard REL-16.PCI are normally
open. To close a relay a one must be written to the appropriate bit.
Register Description
Address
Mode
D7
D6
D5
D4
D3
D2
D1
D0
Base+0
R
{0}
{0}
{0}
{0}
{0}
{0}
{0}
{0}
Base+1
{0}
{0}
{0}
{0}
{0}
{0}
{0}
{0}
Base+2
R/W
PCD7
PCD6
PCD5
PCD4
PCD3
PCD2
PCD1
PCD0
Base+3
R/W
PDD7
PDD6
PDD5
PDD4
PDD3
PDD2
PDD1
PDD0
Base+4
R
{0}
{0}
{0}
{0}
{0}
{0}
{0}
{0}
Base+5
R
{0}
{0}
{0}
{0}
{0}
{0}
{0}
{0}
Base+6
R
{0}
{0}
{0}
{0}
{0}
{0}
{0}
{0}
Base+7
R
{0}
{0}
{0}
{0}
{0}
{0}
{0}
{0}

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© Sealevel Systems, Inc. 8003 Manual | SL9077 9/2021
Electrical Characteristics
Features
•16 SPST relays
•DB-37 Male connector
•Highly reliable 10 VA DIP reed relays
•Multiple adapters can reside in same computer
•PCI 2.1 Bus compatible

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Specifications
Output Relays
Contact Max Power Rating
10W
Contact Voltage Maximum
100 VDC/VAC
Contact Current Maximum
.5A AC/DC RMS
Contact Resistance, Initial
.15 
Rated Life
200 Million Closures
(Low Load)
100 Million Closures
(Maximum Load)
Contact Speed
Operate - .5mS
Release - .5mS
Bounce - .5 mS
Maximum Operating Speed
600 Hz
Environmental Specifications
Specification
Operating
Storage
Temperature Range
0º to 70º C
-50º to 105º C
Manufacturing
All Sealevel Systems Printed Circuit boards are built to UL 94V0 rating and are 100% electrically tested.
These printed circuit boards are solder mask over bare copper or solder mask over tin nickel.
Power Requirements
Supply Line
+5 VDC
Rating
360 mA
Physical Dimensions
Board length
5.00 inches (12.700 cm)
Board Height including Goldfingers
3.90 inches (9.906 cm)

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© Sealevel Systems, Inc. 8003 Manual | SL9077 9/2021
Example Circuits
Output Circuit

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© Sealevel Systems, Inc. 8003 Manual | SL9077 9/2021
Appendix A –Troubleshooting
Sealevel 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. Install software first. After installing the software then proceed to adding the hardware. This
places the required installation files in the correct locations.
2. Read this manual thoroughly before attempting to install the adapter in your system.
3. Use Device Manager under Windows to verify proper installation.
4. Use the SeaI/O Control Panel applet or the Device Manager’s property page for card identification
and configuration.
If these steps do not solve your problem, please call Sealevel Systems’ Technical Support, [phone].
Our technical support is free and available from 8:00AM-5PM Eastern Time, Monday through Friday. For
email support contact: mailto:sup[email protected].

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© Sealevel Systems, Inc. 8003 Manual | SL9077 9/2021
Appendix B –How To Get Assistance
Please refer to: Appendix A -- Troubleshooting Guide prior to calling Technical Support.
Begin by reading through the Trouble Shooting 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.asp.
Sealevel Systems maintains a web page on the Internet. Our home page address
is www.sealevel.com. The latest software updates, and newest manuals are available via our
web site.
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 [phone].
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.

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© Sealevel Systems, Inc. 8003 Manual | SL9077 9/2021
Appendix C –Silk Screen –8003 PCB
3.9"
5.0"

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© Sealevel Systems, Inc. 8003 Manual | SL9077 9/2021
Appendix D –Compliance Notices
Federal Communications Commission (FCC) Statement
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 the user’s 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”.
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 to prevent or correct the
interference.
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.

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© Sealevel Systems, Inc. 8003 Manual | SL9077 9/2021
Warranty
Sealevel's commitment to providing the best I/O solutions is reflected in the Lifetime Warranty that is
standard on all Sealevel manufactured I/O 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 achieved ISO-9001:2015 certification in 2018.
Warranty Policy
Sealevel Systems, Inc. (hereafter "Sealevel") warrants that the Product shall conform to and perform in
accordance with published technical specifications and shall be free of defects in materials and
workmanship for the warranty period. In the event of failure, Sealevel will repair or replace the product at
Sealevel's sole discretion. Failures resulting from misapplication or misuse of the Product, failure to adhere
to any specifications or instructions, or failure resulting from neglect, abuse, accidents, or acts of nature
are not covered under this warranty.
Warranty service may be obtained by delivering the Product to Sealevel and providing proof of purchase.
Customer agrees to ensure the Product or assume the risk of loss or damage in transit, to prepay shipping
charges to Sealevel, and to use the original shipping container or equivalent. Warranty is valid only for
original purchaser and is not transferable.
This warranty applies to Sealevel manufactured Product. Product purchased through Sealevel but
manufactured by a third party will retain the original manufacturer's warranty.
Non-Warranty Repair/Retest
Products returned due to damage or misuse and Products retested with no problem found are subject to
repair/retest charges. A purchase order or credit card number and authorization must be provided in order
to obtain an RMA (Return Merchandise Authorization) number prior to returning Product.
How to obtain an RMA (Return Merchandise Authorization)
If you need to return a product for warranty or non-warranty repair, you must first obtain an RMA number.
Please contact Sealevel Systems, Inc. Technical Support for assistance:
Available Monday –Friday, 8:00AM to 5:00PM EST
Phone [phone]
Email [email protected]
Trademarks
Sealevel Systems, Incorporated acknowledges that all trademarks referenced in this manual are the service
mark, trademark, or registered trademark of the respective company.