SeaLevel SeaDAC Lite User manual

Sealevel Systems, Inc.
Sealevel.com
Phone [phone]
SeaDAC Lite
USER MANUAL
ITEM# SEADAC LITE

©Sealevel Systems, Inc.
SL9181 5/2019 SeaDAC Lite Manual 2
Contents
Before You Get Started ............................................................................................................................................. 3
What’s Included..................................................................................................................................................... 3
Advisory Conventions ........................................................................................................................................... 3
Optional Items....................................................................................................................................................... 4
Introduction .............................................................................................................................................................. 7
Overview ................................................................................................................................................................ 9
Features ................................................................................................................................................................. 9
Hardware Description............................................................................................................................................. 10
SeaDAC Lite Configurations & Specifications ................................................................................................... 10
8111 – 4 Optically Isolated Inputs/4 Reed Relay Outputs ............................................................................... 10
8112 – 4 Optically Isolated Inputs/4 Form C Outputs ..................................................................................... 11
8113 – 4 Optically Isolated Inputs..................................................................................................................... 12
8114 – 4 Reed Relay Outputs............................................................................................................................. 13
8115 – 4 Form C Relay Outputs......................................................................................................................... 14
8126 – 32 Channel TTL ...................................................................................................................................... 15
8126 – Optional Items ........................................................................................................................................ 16
TTL applications.................................................................................................................................................. 16
High-Current, High-Voltage Applications.......................................................................................................... 17
For high-current, high-voltage applications, continued................................................................................... 18
SeaDAC Lite Power Requirements...................................................................................................................... 20
Connector Pin Assignments................................................................................................................................... 21
Pin Outs – SeaDAC Lite 8111 - 8115 Modules .................................................................................................. 21
Pin Out – SeaDAC Lite 8126 TTL Module .......................................................................................................... 22
SeaLATCH™ USB...................................................................................................................................................... 25
SeaLATCH Locking USB Cables........................................................................................................................... 26
SeaMAX Application Suite ...................................................................................................................................... 27
SeaMAX Overview ................................................................................................................................................ 27
SeaMAX Software Installation............................................................................................................................. 28
MaxSSD Configuration & Diagnostics Utility..................................................................................................... 29
Technical Specifications ......................................................................................................................................... 32
Appendix A - Handling Instructions...................................................................................................................... 33
ESD Warnings....................................................................................................................................................... 33
Appendix B – How to Get Assistance .................................................................................................................... 34
Technical Support ............................................................................................................................................... 34
Warranty .................................................................................................................................................................. 36
Trademarks.......................................................................................................................................................... 36

©Sealevel Systems, Inc.
SL9181 5/2019 SeaDAC Lite Manual 3
Before You Get Started
WHAT’S INCLUDED
All SeaDAC modules are shipped with the following items. If any of these items is missing or damaged
please contact Sealevel for a replacement.
•SeaDAC Lite Digital Interface Adapter
•Item# CA356 – USB Type A to SeaLATCH Type B Cable, 6’ in Length
•Sealevel Software CD– SeaMAX Software and Documentation
SeaDAC Lite iPorthole and OEM modules do not include an internal USB cable. Order the appropriate
internal cable for your system from Sealevel, or use Molex connector p/n# 35507-0400 or
equivalent.
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.

©Sealevel Systems, Inc.
SL9181 5/2019 SeaDAC Lite Manual 4
OPTIONAL ITEMS
Depending upon your application, you are likely to find one or more of the following items useful for
interfacing SeaDAC Lite modules.
All items can be purchased from our website (http://www.sealevel.com) or by calling [phone]. For
applicable accessories, pin out diagrams are located on the website.
MOUNTING HARDWARE
STANDARD USB CABLES
USB Type A to Sealevel 2mm Molex Connectors (Item# CA342)
The CA342 is 24” in length and is compatible with
Sealevel iPorthole™, SeaDAC Lite OEM, and other Sealevel
USB devices with a 1x4 2mm embedded connector. This
allows you to connect these USB devices to a standard
USB port for testing, debugging and application
development.
USB 3 Meter Extension Cable (Item# CA214)
The CA214 is a fully rated USB extension cable that adds
three meters to any existing USB cable (maximum 5
meters). The CA214 has a Type A male connector on one
end and a Type A female connector on the other end.
DIN Rail Mounting Clips (Item# DR105)
If your device has flanges or mounting ears, you can use
the DR105 to make virtually any device DIN rail
compatible.

©Sealevel Systems, Inc.
SL9181 5/2019 SeaDAC Lite Manual 5
EMBEDDED USB CABLES
SEALATCH™ LOCKING USB CABLES
SeaLATCH™ Locking USB Cables
SeaLATCH locking USB cables provide a secure metal-to-
metal connection between a USB device and the cable,
preventing the most common point of failure –
accidental cable disconnection. SeaLATCH cables are
covered in a dedicated section of this manual.
Internal USB Cable for Sealevel 2mm Molex Connectors (Item# CA382)
The CA382 is 14” in length and is compatible with
Sealevel iPorthole™ and SeaDAC Lite OEM products. Both
ends have a 1x4 2mm Molex connector for internal
connections to Sealevel embedded USB products.
Internal USB Cable for 1x4 2mm Box Header Connectors (Item# CA383)
The CA383 is 14” in length and is compatible with
Sealevel iPorthole™ and SeaDAC Lite OEM products.
Perfect for adding Sealevel I/O modules to small
embedded systems.
USB Type A to USB Type B Device Cable (Item# CA179)
The CA179 is a standard six-foot device cable that
connects USB peripherals with a Type B connector to the
Type A connector on a host PC or hub.
USB Ty
Cable (Item# CA179)

©Sealevel Systems, Inc.
SL9181 5/2019 SeaDAC Lite Manual 6
USB HUBS
High Speed 4-Port USB 2.0 Hub (Item# HUB4PH)
The HUB4PH is a powered 4-port USB 2.0 hub with
SeaLATCH locking USB connectors. The hub is perfect for
expanding industrial computers with locking USB ports.
USB Cab
le
(Item# CA179)
High Speed 7-Port USB 2.0 Hub (Item# HUB7P)
The HUB7P is a powered 7-port USB 2.0 hub that is
perfect for adding high-speed USB ports to industrial
computers. A high retention Type B connector prevents
accidental cable disconnection.
Optically Isolated 7-Port USB Hub (Item# HUB7i)
The HUB7i is an optically isolated USB hub that connects
up to seven USB peripherals and protects the host
computer from voltages up to 5500 VAC. A high
retention Type B connector prevents accidental cable
disconnection.
iPortholes High Speed 4-Port USB 2.0 Hub (Item# HUB4PH-KT)
The HUB4PH-KT is an internally powered 4-port USB 2.0
hub with SeaLATCH locking USB connectors. Simply
design the 3.2” x 3.1” Porthole mounting footprint into
your enclosure and easily add four downstream locking
USB ports.
Embedded High Speed 4-Port USB 2.0 Hub (Item# HUB4PH-OEM)
The HUB4PH-OEM is an internally powered 4-port USB
2.0 hub. It includes a cable that sources +5V power from
a standard hard drive connector and is perfect for
adding up to four iPorthole modules to your embedded
application.
USB Cab
le (Item# CA179)

©Sealevel Systems, Inc.
SL9181 5/2019 SeaDAC Lite Manual 7
Introduction
SeaDAC Lite™ USB digital I/O modules provide a low I/O count solution in a small, rugged enclosure.
Models are available with optically isolated inputs, Reed or Form C relay and TTL outputs. SeaDAC Lite
modules are powered by the USB port, eliminating external power supplies.
SeaDAC Lite modules integrate a SeaLATCH™ USB port that provides a secure metal-to-metal connection
and prevents accidental cable disconnection. SeaLATCH connectors are fully compatible with standard USB
cables.
For easy software integration, application programs or 3rd party software can use Sealevel’s SeaMAX library
that includes a variety of helpful diagnostic utilities and sample programs. SeaDAC Lite modules are
supported under Windows and Linux operating systems.
For embedded system solutions, SeaDAC Lite modules are available in iPorthole™ versions with the
“Intelligent Porthole” family of USB digital I/O products. Simply design the 3.2” x 3.1” Porthole mounting
footprint into your enclosure to mix and match iPorthole USB I/O modules for maximum configurability.
The Porthole footprint offers a standard method for interfacing real-world I/O connections.
SeaDAC Lite modules are USB 2.0 compatible, USB 1.1 compliant, and are powered by the USB port,
eliminating external power supplies. OEM versions without enclosures or Porthole mounting plates are also
available.

©Sealevel Systems, Inc.
SL9181 5/2019 SeaDAC Lite Manual 8
This manual covers the installation & operation of these SeaDAC Lite modules:
SeaDAC Lite DIO-8 4 Isolated Inputs / 4 Reed Relay Outputs
SeaDAC Lite Module P/N 8111
iPorthole Module P/N 8111-KT
OEM Module P/N 8111-OEM
SeaDAC Lite PLC-8 4 Isolated Inputs / 4 Form C Relay Outputs
SeaDAC Lite Module P/N 8112
iPorthole Module P/N 8112-KT
OEM Module P/N 8112-OEM
SeaDAC Lite ISO-4 4 Optically Isolated Inputs
SeaDAC Lite Module P/N 8113
iPorthole Module P/N 8113-KT
OEM Module P/N 8113-OEM
SeaDAC Lite REL-4 4 Reed Relay Outputs
SeaDAC Lite Module P/N 8114
iPorthole Module P/N 8114-KT
OEM Module P/N 8114-OEM
SeaDAC Lite REL-4C 4 Form C Relay Outputs
SeaDAC Lite Module P/N 8115
iPorthole Module P/N 8115-KT
OEM Module P/N 8115-OEM
SeaDAC Lite PIO-32 32 Channel TTL
SeaDAC Lite Module P/N 8126
iPorthole Module P/N 8126-KT
OEM Module P/N 8126-OEM
Please call for pricing on extended temperature versions and for other available modifications.

©Sealevel Systems, Inc.
SL9181 5/2019 SeaDAC Lite Manual 9
OVERVIEW
Sealevel SeaDAC Lite modules are available in various I/O configurations, each designed for maximum
flexibility and easy field wiring. SeaDAC Lite modules offer system designers a compact, low-cost alternative
for interfacing any USB equipped computer with real world signals. SeaDAC Lite modules are designed to
work with third party applications via the Sealevel SeaMAX API. For maximum reliability, all SeaDAC Lite
modules include Sealevel’s innovative SeaLATCH locking USB connector design that prevents accidental
cable disconnection.
INDUSTRY SEGMENTS
SeaDAC modules are perfect for a wide variety of applications and environments including:
•Process Control
•Data Acquisition
•Broadcast Automation
•Security
•Facility Management
FEATURES
•Models Offering Choice of:
•Optically Isolated Inputs
•Reed Relay Outputs
•Form C Relay Outputs
•TTL Interface
•SeaLATCH Locking USB Connector Prevents Cable Disconnection
•Powered by USB Connection
•Status Indicator LEDs for I/O Activity and USB Connection
•Field Removable Terminal Block Connectors
•Optional Spring-Clamp Terminal Blocks Available
•Industry standard 50-pin relay rack connector
•Wide Operating Temperature (0°C to +70°C)
•Extended Temperature Available (-40°C to +85°C)
•Housed in Rugged, Attractive Plastic Enclosure
•Compact Size with Versatile Mounting Capabilities
•Available in iPorthole and OEM versions

©Sealevel Systems, Inc.
SL9181 5/2019 SeaDAC Lite Manual 10
Hardware Description
SEADAC LITE CONFIGURATIONS & SPECIFICATIONS
8111 – 4 OPTICALLY ISOLATED INPUTS/4 REED RELAY OUTPUTS
SeaDAC Lite 8111 modules provide 4 optically isolated inputs and 4 dry-contact Reed relay outputs. Inputs
can range from 5-30VDC and provide 2500VAC RMS / 3500VDC isolation to ground, while the Reed relays
provide long life switch closures that are well suited for low current applications. Each Reed relay has a
discrete common and each pair of inputs share a common. Status LEDs display I/O activity and field wiring
is simplified via removable 3.5mm terminal blocks compatible with 16-30 AWG wiring.
Inputs
Type 4 non-polarized optically isolated inputs
Voltage Range 5-30VDC
Isolation 2500VAC RMS / 3500VDC
Input Resistance 6.2K Ohms in series
Response Time 4μs
Outputs
Type 4 SPST Form A Reed relays
Power 10VA max.
Contact Voltage 60VDC max.
Contact Current 500mA max.
Operate Time 0.5ms max.
Bounce Time 0.5ms max.
Release Time 0.2ms max.
8111-KT iPorthole
8111-OEM

©Sealevel Systems, Inc.
SL9181 5/2019 SeaDAC Lite Manual 11
8112 – 4 OPTICALLY ISOLATED INPUTS/4 FORM C OUTPUTS
The SeaDAC Lite 8112 provides 4 optically isolated inputs and 4 SPDT Form C relay outputs. Inputs can
range from 5-30VDC and provide 2500VAC RMS / 3500VDC isolation to ground, while the Form C relays
switch up to 60VDC @ 5A or 250VAC @ 6A. Each Form C relay has a discrete common and includes
normally-open and normally-closed contact connections. Each pair of inputs shares a common. Status LEDs
display I/O activity and field wiring is simplified via 3.5mm field removable terminal blocks compatible with
16-30 AWG wiring.
Inputs
Type 4 non-polarized optically isolated inputs
Voltage Range 5-30VDC
Isolation 2500VAC RMS / 3500VDC
Input Resistance 6.2K Ohms in series
Response Time 4μs
Outputs
Type 4 SPDT Form C relays
Power DC 240W / AC 1200 VA
Contact Voltage 60VDC / 250VAC max.
(5VDC min.)
Contact Current (DC) <30 VDC @ 5A max.
>30 VDC @ 700mA max.
(100mA min.)
Contact Current (AC) 6A max.
Operate Time 10ms max.
Release Time 5ms max.
8112-KT iPorthole
8112-OEM

©Sealevel Systems, Inc.
SL9181 5/2019 SeaDAC Lite Manual 12
8113 – 4 OPTICALLY ISOLATED INPUTS
SeaDAC Lite 8113 modules provide 4 optically isolated inputs with 2500VAC RMS / 3500VDC external
isolation. Ideal for low voltage monitoring applications, inputs can range from 5-30VDC. Status LEDs display
I/O activity and connection to real world signals is made via 3.5mm field removable screw terminal
connectors compatible with 16-30 AWG wiring.
Inputs
Type 4 non-polarized optically isolated inputs
Voltage Range 5-30VDC
Isolation 2500VAC RMS / 3500VDC
Input Resistance 6.2K Ohms in series
Response Time 4μs
8113-KT iPorthole
8113-OEM

©Sealevel Systems, Inc.
SL9181 5/2019 SeaDAC Lite Manual 13
8114 – 4 REED RELAY OUTPUTS
The SeaDAC Lite 8114 provides 4 SPST Form A dry-contact Reed relays. Reed relays offer long life
performance, fast response time, and are well suited to low current devices. Each relay output has a
discrete common. Status LEDs display I/O activity and field wiring is simplified via field removable 3.5mm
screw terminal blocks compatible with 16-30 AWG wiring.
Outputs
Type 4 SPST Form A Reed relays
Power DC 30W / AC 10VA Max.
Contact Voltage 60VDC max.
Contact Current 500mA max.
Operate Time 0.5ms max.
Bounce Time 0.5ms max.
Release Time 0.2ms max.
8114-KT iPorthole
8114-OEM

©Sealevel Systems, Inc.
SL9181 5/2019 SeaDAC Lite Manual 14
8115 – 4 FORM C RELAY OUTPUTS
Control and monitor a variety of devices with the SeaDAC Lite 8115. The module’s 4 channels of highly-
reliable SPDT Form C relay outputs are rated for up to 60VDC @ 5A or 250VAC @ 6A. Each Form C relay has
a discrete common and includes normally-open and normally-closed contact connections. Status LEDs
display I/O activity and field wiring is simplified via 3.5mm field removable terminal blocks compatible with
16-30 AWG wiring.
Outputs
Type 4 SPDT Form C relays
Power DC 210W / AC 1200 VA Max.
Contact Voltage 60VDC / 250VAC max.
(5VDC min.)
Contact Current (DC) <30 VDC @ 5A max.
>30 VDC @ 700mA max.
(100mA min.)
Contact Current (AC) 6A max.
Operate Time 10ms max.
Release Time 5ms max.
8115-OEM
8115-KT iPorthole
8115-OEM

©Sealevel Systems, Inc.
SL9181 5/2019 SeaDAC Lite Manual 15
8126 – 32 CHANNEL TTL
The SeaDAC Lite 8126 provides 32 channels of buffered drive digital I/O. The module addresses the 32
channels of I/O as four eight-bit ports, each programmable as input or output. Use a standard 50-pin IDC
ribbon cable to connect an industry standard relay rack for PC based control and automation of equipment
including sensors, switches, security control systems, and other industrial automation systems. A status
LED lights when the 8126 is successfully communicating with a USB port.
Power Requirements
Max Output Power +5VDC @ 350mA
Inputs
Logic High Min 2VDC
Logic Low Max 0.8VDC
Outputs *
Logic Low Max 0.5VDC @ 64mA
Logic High Min 2VDC @ 32mA
8126-KT iPorthole
8126-OEM

©Sealevel Systems, Inc.
SL9181 5/2019 SeaDAC Lite Manual 16
8126 – OPTIONAL ITEMS
Depending upon your application, you are likely to find one or more of the following items useful for
interfacing the 8126 to real-world signals. All items can be purchased from our website
(http://www.sealevel.com) or by calling [phone].
TTL APPLICATIONS
Terminal Block Kit (Item# KT107)
Kit includes the TB07 screw terminal block and CA167
ribbon cable for connecting the 8126’s 50-pin header
connector to your I/O. 6” Snap track and DIN rail clips
are included for DIN rail mounting.
USB (Item
#
CA179)
Terminal Block – 50-Pin Header to 40 Screw Terminals (Item# TB07)
The TB07 allows you to break out digital TTL signals, +5
volts, and ground to screw terminals for easy field
connection of switches, discrete solid state relays,
sensors, etc. Two four-position screw terminals
interface +5V and Ground.
IDC 50 to IDC 50 Pin 40" Ribbon Cable (Item# CA167)
Interfaces the 8126’s 50-pin header connector
Simulation/Debug Module (Item# TA01)
Module allows monitoring status of output pins and
controlling state of input pins. An LED corresponding to
each port bit illuminates to indicate state. Eight position
DIP-switches are used to generate input status changes.

©Sealevel Systems, Inc.
SL9181 5/2019 SeaDAC Lite Manual 17
HIGH-CURRENT, HIGH-VOLTAGE APPLICATIONS
Discrete 8-Position Relay Rack (Item# PB8HS)
The PB8HS relay rack can be used with up to eight discrete
I/O modules, including input modules, output relays,
override relays, watchdog timers, and mechanical relays.
Discrete 16-Position Relay Rack (Item# PB16HS)
The PB16HS relay rack can be used with up to sixteen
discrete I/O modules, including input modules, output
relays, override relays, watchdog timers, and mechanical
relays.
Discrete 24-Position Relay Rack (Item# PB24HS)
The A24H relay rack can be used with up to twenty-four
discrete I/O modules, including input modules, output
relays, override relays, watchdog timers, and mechanical
relays.
IDC 50 to IDC 50 Pin Ribbon Cable (Item# CA167)
40” cable connects the 8126 to solid-state relay racks
equipped with a 50-pin header interface.
IDC 50 to IDC 50 Pin Ribbon Cable (Item# CA135)
40” cable connects the 8126 to solid-state relay racks
equipped with a 50-pin edge connector.
Solid-State Relay Racks: Quad six position relay rack (Item# PB24HQ)
Relay rack can accept up to six QSSRs for a total of 24
channels. Features a 50-pin header connector for easy
interface via 50-conductor ribbon cables.

©Sealevel Systems, Inc.
SL9181 5/2019 SeaDAC Lite Manual 18
FOR HIGH-CURRENT, HIGH-VOLTAGE APPLICATIONS, CONTINUED
Solid-State Relay Racks: Quad four position relay rack (Item# PB16HQ)
Relay rack can accept up to four QSSRs for a total of 16
channels. Features a 50-pin header connector for easy
interface via 50-conductor ribbon cables.
Quad Solid-State Relay Modules: AC Input (Item# IA5Q)
Provides 4 channels of discrete I/O interface to monitor AC
inputs up to 140V @ 10mA.
Quad Solid-State Relay Modules: DC Input (Item# IB5Q)
Provides 4 channels of discrete I/O interface to monitor DC
inputs from 3.3V to 32V.
Quad Solid-State Relay Modules: DC Input (Item# OA5Q)
AC Output (Item# OA5Q) –Provides 4 channels of discrete
I/O interface to control AC outputs up to 140V @ 3A.
Quad Solid-State Relay Modules: DC Output (Item# OB5Q)
Provides 4 channels of discrete I/O interface to control DC
outputs up to 60V @ 3A.

©Sealevel Systems, Inc.
SL9181 5/2019 SeaDAC Lite Manual 19
SeaDAC Lite 8126 connected to Terminal Block (TB07)
SeaDAC Lite 8126 connected to Discrete Relay Rack (PB16HS)
SeaDAC Lite 8126 connected to Solid State Relay Rack (PB24HQ)

©Sealevel Systems, Inc.
SL9181 5/2019 SeaDAC Lite Manual 20
SEADAC LITE POWER REQUIREMENTS
Sealevel SeaDAC Lite modules are powered by the USB host interface and require 5VDC @ 500mA to be
available on the USB port. Most computers and powered USB hubs are capable of meeting this requirement,
while passive USB hubs and some laptops running on batteries may not. Check the product manual that
shipped with your system or hub if you are uncertain. Sealevel technical support may also be able to help.
The maximum power requirements for each SeaDAC Lite device are shown below.
Item#
Description
mA
8111
4 Isolated Inputs / 4 Reed Relay Outputs
300
8112
4 Isolated Inputs / 4 Form C Relay Outputs
500
8113
4 Optically Isolated Inputs
100
8114
4 Reed Relay
Outputs 200
8115
4 Form C Relay Outputs
400
8126
32 TTL Channels
500