SeaLevel COMM+16.PCI User manual

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© Sealevel Systems, Inc. 7161 Manual | SL905710/2022
COMM+I6.PCI
User Manual | 7161

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© Sealevel Systems, Inc. 7161 Manual | SL905710/2022
Contents
CONTENTS...........................................................................................................................................................2
INTRODUCTION ................................................................................................................................................... 3
BEFORE YOU GET STARTED ...............................................................................................................................3
INSTALLATION .................................................................................................................................................... 4
PHYSICAL INSTALLATION..................................................................................................................................6
TECHNICAL DESCRIPTION ................................................................................................................................. 7
SPECIFICATIONS .................................................................................................................................................9
APPENDIX A – TROUBLESHOOTING................................................................................................................10
APPENDIX B – HOW TO GET ASSISTANCE .....................................................................................................11
APPENDIX C – ELECTRICAL INTERFACE ........................................................................................................12
APPENDIX D – ASYNCHRONOUS COMMUNICATIONS ..................................................................................13
APPENDIX E – SILK SCREEN ............................................................................................................................14
APPENDIX F – COMPLIANCE NOTICES...........................................................................................................15
WARRANTY ........................................................................................................................................................16

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© Sealevel Systems, Inc. 7161 Manual | SL905710/2022
Introduction
The Sealevel Systems COMM+16.PCI provides the PC with sixteen RS-232 asynchronous ports. The
COMM+16.PCI allows for connection to any device utilizing the RS-232 electrical interface, such as
modems, data-entry terminals, and plotters.
Before You Get Started
What’s Included
The COMM+16.PCI is shipped with the following items. If any of these items is missing or damaged,
contact the supplier.
•COMM+16.PCI Serial I/O Adapter
•(2) Micro MDB-68 to eight DB-25 ‘Spider Cable’ P/N CA202
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.
Address and IRQ selection
The COMM+16.PCI is automatically assigned I/O addresses and IRQs by your motherboard BIOS. Adding
or removing other hardware may change the assignment of I/O addresses and IRQs.

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© Sealevel Systems, Inc. 7161 Manual | SL905710/2022
Installation
Software Installation
Windows Installation
Do not install the Adapter in the machine until the software has been fully installed.
Only users running Windows 7 or newer should utilize these instructions for accessing and
installing the appropriate driver via Sealevel’s website. If you are utilizing an operating system
prior to Windows 7, please contact Sealevel by calling 864.843.4343 or emailing
[email protected] to receive access to the proper driver download and installation
instructions.
1. Begin by locating, selecting, and installing the correct software from the Sealevel software
driver database.
2. Type in or select the part number (#7161) for the adapter from the listing.
3. Select “Download Now” for SeaCOM for Windows.
4. The setup files will automatically detect the operating environment and install the proper
components. Follow the information presented on the screens that follow.
5. A screen may appear with text similar to: “The publisher cannot be determined due to the
problems below: Authenticode signature not found.” Please click the ‘Yes’ button and
proceed with the installation. This declaration simply means that the operating system is
not aware of the driver being loaded. It will not cause any harm to your system.
6. During setup, the user may specify installation directories and other preferred
configurations. This program also adds entries to the system registry that are necessary
for specifying the operating parameters for each driver. An uninstall option is also included
to remove all registry/INI file entries from the system.
7. The software is now installed, and you can proceed with the hardware installation.

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© Sealevel Systems, Inc. 7161 Manual | SL905710/2022
Linux Installation
You MUST have “root” privileges to install the software and drivers.
The syntax is case sensitive.
SeaCOM for Linux can be downloaded here: https://www.sealevel.com/support/software-seacom-linux/.
It includes the README and the Serial-HOWTO help files (located at seacom/dox/howto). This series of
files both explains typical Linux serial implementations and informs the user about Linux syntax and
preferred practices.
User can use a program such as 7-Zip to extract the tar.gz file.
In addition, the software selectable interface settings can be accessed by referencing
seacom/utilities/7161mode.
Other Operating Systems
Refer to the appropriate section of the Serial Utilities Software.
For additional software support, including QNX, please call Sealevel Systems’ Technical Support, (864) 843-
4343. Our technical support is free and available from 8:00 AM - 5:00 PM Eastern Time, Monday through
Friday. For email support contact: [e-mail].

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© Sealevel Systems, Inc. 7161 Manual | SL905710/2022
Physical Installation
The COMM+16.PCI is a universal PCI implementation and can be installed in any 5V or 3.3V slot of the PCI
expansion slots.
Do not install the Adapter in the machine until the software has been fully installed.
1. When running Windows 9x/NT install software before installing adapter.
2. Turn off PC power. Disconnect the power cord.
3. Remove the PC case cover.
4. Locate an available PCI slot and remove the blank metal slot cover.
5. Gently insert the COMM+16.PCI into the slot. Make sure that the adapter is seated
properly.
6. Replace the screw.
7. Replace the cover.
8. Connect the power cord.
Installation is complete.

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© Sealevel Systems, Inc. 7161 Manual | SL905710/2022
Technical Description
The Sealevel Systems COMM+16.PCI provides a PCI interface adapter with 16 RS-232 asynchronous serial
ports for industrial automation and control applications.
The COMM+16.PCI utilizes the 16C854 UART. This chip features programmable baud rates, data format,
interrupt control and industry leading 128-byte transmit and receive FIFOs.
Connector Pin Assignments
DB-25 (RS-23 DTE) (DB-25 MALE)
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
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.
DB-68 (Micro MDB-68 Female)
Port #
1
2
3
4
5
6
7
8
TD
1
9
19
27
35
43
53
61
RI
2
10
20
28
36
44
54
62
DCD
3
11
21
29
37
45
55
63
DTR
4
12
22
30
38
46
56
64
RTS
5
13
23
31
39
47
57
65
DSR
6
14
24
32
40
48
58
66

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© Sealevel Systems, Inc. 7161 Manual | SL905710/2022
RD
7
15
25
33
41
49
59
67
CTS
8
16
26
34
42
50
60
68
GND
17
17
18
18
51
51
52
52
Both cables are interchangeable and can be used on either connector. The top connector supports Ports
1-8, and the bottom connector supports Ports 9-16.

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© Sealevel Systems, Inc. 7161 Manual | SL905710/2022
Specifications
Environmental Specifications
Specification Operating Storage
Temperature Range 0º to 50º C (32º to 122º F) -20º to 70º C (-4º to 158º F)
Humidity Range 10 to 90% R.H. Non-Condensing 10 to 90% R.H. Non-Condensing
Power Consumption
Supply line +5 VDC
Rating 450 mA
Mean Time Between Failures (MTBF)
Greater than 150,000 hours. (Calculated)
Physical Dimensions
Board length 5.5 inches (13.97 cm)
Board height including Goldfingers 4.2 inches (10.668 cm)

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© Sealevel Systems, Inc. 7161 Manual | SL905710/2022
Appendix A – Troubleshooting
Sealevel Software is supplied with the Sealevel Systems adapter and may be used in the troubleshooting
procedures. Using this software and following these simple steps can eliminate most common problems
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 or Windows 3.x refer to the Sealevel Software and this User Manual to verify that
the Sealevel Systems adapter is configured correctly. This software contains a diagnostic program
‘SSD’ that will verify if an adapter is configured properly. This diagnostic program is written with the
user in mind and is easy to use. Make sure that if available, the ‘Use Plug-n-Play” option is turned ‘OFF’
in your BIOS. Having this option set to ‘ON’ in DOS or Windows 3.x will cause erratic operations.
6. WinSSD is available as a standalone utility and is included with Sealevel’s SeaCOM, SeaLINK and
SeaMAC software suites
7. Always use the Sealevel Systems diagnostic software when troubleshooting a problem. This will
eliminate any software issues from the equation.