687U

USB TO SERIAL ADAPTER

Sealevel USB Devices  •  USB
687U USB to Serial Adapter
687U
687U - USB to 8 Port RS-232/485 (RJ45) Versacom Serial Adapter (SeaI/O-687U)
CE is a mandatory standard for products on the market in the European Economic Area. By CE marking a product, the manufacturer ensures that the item meets the essential safety requirements set out in the applicable CE directive.
This product fully adheres to the Restriction of Hazardous Substances Directive 2002/95/EC, RoHS for short.  The directive covers the restriction of use of certain hazardous substances in electrical and electronic equipment and was adopted in February 2003 by the European Union.
This product has a lifetime warranty against product failure (excludes user or enviromental damage).
The Federal Communications Commission (FCC) is an independent agency of the United States government that sets standards and governs the testing of conducted and radiated emissions such as EMI.
From
£333

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Version information
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687U-ROHS
USB to 8 Port RS-232/485 (RJ45) Versacom Serial Adapter
No stock
£333
Peripheral information
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1 off price**
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8 Optically Isolated Input/8 High-Current Form C Relay Output SeaI/O Expansion Module
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16 Optically Isolated Digital Input/8 Form C Relay Output SeaI/O Expansion Module
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96 Channel TTL (50-Pin) Digital Interface SeaI/O Expansion Module
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90-265V AC to 5V/12V DC 165W Power Supply - (Requires Power Cord)
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Terminal Block Kit - RJ45 to 9 Screw Terminals
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DB9 Male to RJ45 Modular Adapter
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Flush Mount Bracket Kit - for SeaI/O, Relio R1000 Systems
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DIN Rail Mounting Clips - for SeaI/O, R1100, 4103
No stock
£11
All prices exclude VAT at current rate.
Minimum order value - £50 (exc. VAT and delivery).
Free delivery of the 687U to UK Mainland on orders over £150 (exc. VAT and delivery) when purchasing online - excludes Northern Ireland, Isle of Man, Isle of Wight, Scottish Islands and the Channel Islands.

* Lead time is indicative and is subject to change at time of ordering. Next business day delivery on in-stock products only (when ordered before 3pm).
** Contact us for quantity or project pricing.
† Additional delivery charge may be incurred for certain postcodes (calculated at checkout)

687U overview

  • Compliant with RoHS and WEEE directives
  • Utilizes high speed UARTs with 128-byte Tx FIFOs and 384-byte Rx FIFOs
  • Provides 8 x RJ45 serial ports with Tx/Rx status LEDs
  • Integrates transmit and receive LED indicators on each port
  • VersaCom design allows RS-232 or two-wire RS-485 selection via cabling on each individual port
  • High-retention USB type B connector prevents accidental disconnection of USB cable
  • Input power via terminal block or barrel connector
  • Includes 72'' USB A to B cable (Item# CA179)
The SeaI/O-687U easily adds eight RS-232 or RS-485 serial ports to a Relio R1000, SeaPAC industrial touchscreen computer, stack of SeaI/O modules, or anywhere serial devices need to be connected via an available USB port.

With the unique VersaCom multi-interface connector design, both RS-232 and two-wire RS-485 signals are always present and active on the RJ45 serial connectors. Simply select the appropriate pin out for RS-232 or two-wire RS-485 on each individual port. There are no internal jumpers or switches to set, so field installation and service is easy.

The serial ports appear as standard COM ports to the host system enabling compatibility with legacy software. The SeaI/O-687U supports data rates to 921.6K bps and is designed with a state-machine architecture that greatly reduces the host CPU overhead when communicating over multiple ports simultaneously. Status LEDs display transmit and receive data activity.

The SeaI/O-687U is powered from your 9-30V DC source, or select from a variety of Sealevel power supply options. For conveniently powering serial peripherals, the supplied power is fused and connected to pin 5 on each of the RJ45 serial connectors. A high-retention USB type B connector helps to prevent accidental disconnection of the USB cable.

To further simplify connecting to Sealevel VersaCom RJ45 serial connectors, we offer a number of accessories including RJ45 modular adapters. With these helpful adapters you can easily connect to serial ports on virtually any PLC or peripheral regardless of the serial connector type or gender. For more information please browse our full line of adapters and converters.

An RS-485 pass-through connector on the side of the SeaI/O-687U provides additional I/O expansion using SeaI/O N-series expansion modules. Increase your I/O network with up to 246 additional SeaI/O expansion modules, available with Reed and Form C relays, optically isolated inputs, TTL interfaces, A/D and D/A functionality.
 
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