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Communicate with the SeaI/O-420U using the Sealevel SeaMAX API software libraries or use any Modbus RTU compliant device. Sealevel's SeaMAX software drivers and utilities make installation and operation easy using Windows 2000, XP and Vista operating systems.
Expand your I/O network with SeaI/O N series products. SeaI/O modules are available with Reed and Form C relays, optically isolated inputs, TTL interfaces, A/D and D/A functionality. Up to 246 additional expansion modules can be added using convenient pass-through connectors.
The SeaI/O-420U integrates a patent-pending SeaLATCH USB port, which is fully compatible with standard USB cables. When used with the included USB cable with a SeaLATCH USB type B connector, the metal thumbscrew provides a secure connection to the device and prevents accidental cable disconnection.
Get a jumpstart on your digital I/O development with The Digital I/O Handbook that will provide helpful information that you will use again and again. Check out Chapter 1 for an overview of logic principles.
| Host Interface | USB |
|---|---|
| # of Ports | 16/8 |
| Brand/Family | SeaI/O |
| Digital I/O | Isolated Inputs, Form C Relay Outputs |
| RoHS | Yes |
| Number of Inputs/Outputs | 16 Inputs / 8 Outputs |
| USB Specification | 1.1 Compliant 2.0 Compatible |
| Input Isolation | 300V |
| Input Range | 5-30 VDC |
| Contact Voltage | 60VDC max. |
| Contact Current | 2A max. |
| Contact Operate Time | 2ms max. |
| Contact Bounce Time | 7ms max. |
| Contact Release Time | 1ms max. |
| Power Requirement | 9-30 VDC @ 2.2W |
| Operating Temperature | 0 - +70C |
| Extended Temperature | Call for Options |
| Storage Temperature | -50 - +105C |
| Humidity Range | 10 - 90% Relative Humidity, Non-Condensing |
| Dimensions | 7.5 (L) x 5.1 (W) x 1.3 (H) |
• 8 SPDT Form C relays
• Removable screw terminals simplify field wiring
• Input power via terminal block or modular connector
• Patent-pending SeaLATCH USB port provides locking connection with SeaLATCH USB cables via metal thumbscrews
• DIN rail or table mount
• Sealevel software supports Windows 2000/XP/Vista operating systems
• Includes 6' USB type A to SeaLATCH USB type B device cable (Item# CA356)
 Part#REF101 The Digital I/O Handbook
$19.95
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 Part#REF102 The Digital I/O Handbook (*Free)
$0.00
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 Part#HUB4 USB Hub
$39.95
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 Part#TR112 Wall Mount Power Supply
$10.95
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 Part#KT125 Universal Mounting Bracket
$69.95
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 Part#KT122 SeaI/O Expansion
$8.95
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 Part#410N SeaI/O-410N
$269.00
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 Part#420N SeaI/O-420N
$259.00
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 Part#KT123 Flush Mount Bracket
$17.95
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 Part#TR109 Wall Mount Power Supply
$14.95
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 Part#HUB7 USB Hub
$49.95
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 Part#CA239 SeaI/O RS-485 Interconnect
$2.95
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 Part#PS105 165 Watt Power Supply
$229.00
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 Part#DR104 DIN Rail Mounting Clips
$9.95
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 Part#430N SeaI/O-430N
$269.00
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 Part#440N SeaI/O-440N
$319.00
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 Part#RK1U 1U 19 In. Rack Tray
$39.95
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 Part#RK2U 2U 19 In. Rack Tray
$59.95
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 Part#450N SeaI/O-450N
$279.00
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 Part#RK-CLAMP Rackmount Clamp
$19.95
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 Part#462N SeaI/O-462N
$239.00
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 Part#463N SeaI/O-463N
$249.00
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 Part#470N SeaI/O-470N
$429.00
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 Part#520N SeaI/O-520N
$239.00
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 Part#CA332 SeaLATCH Locking USB Device Cable
$9.95
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 Part#CA355 SeaLATCH Locking USB Device Cable
$9.95
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 Part#TB-SP9-KT Spring Clamp Terminal Block Kit
$29.95
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 Part#TB-SC9-KT Screw Terminal Block Kit
$29.95
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 Part#KT130 Side Mount Bracket
$32.95
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