Description
The FT11N-4 is a secure unidirectional RS-232 isolator diode designed to enforce one-way serial data flow between two devices. It physically prevents return communications using hardware-enforced optical isolation – eliminating the risk of data leakage from destination to origin. This product is intended for installations that require command or status data to travel only in a single direction across an air gap.
As a purpose-built isolator, the FT11N-4 supports point-to-point RS-232 signaling and transparent serial operation while preserving standard serial parameters. The device supports user-configurable serial parameters such as baud rate, parity, data bits and stop bits to match attached equipment. It operates at an aggregate bandwidth of 230,400 Kb/s to accommodate common SCADA and control workflows.
Physically the FT11N-4 measures 104 x 28 x 140 mm and weighs 0.3 kg. It uses an external 12V DC power input with a wall-mounted 90 to 240V AC power supply included and requires up to 1.5A. The unit is rated for operation from 0 to 40 C and storage between -20 to 60 C and is specified for 20 to 80 percent non-condensing humidity during operation.
Connectivity is straightforward and transparent to attached RS-232 devices so it can be deployed without changes to existing cabling or device settings beyond matching serial parameters. The isolator is supported across major host platforms for management and configuration including Windows, Linux and Mac. Its transparent behavior ensures compatibility with a wide range of serial equipment and control systems.
The FT11N-4 is suitable for protecting data flows in SCADA links, system synchronization channels, and other control command paths where preventing reverse data flow is critical. It is commonly used to protect classified or segmented networks and to reduce risk when sharing monitoring or control signals between separated domains. The device complements existing access controls by providing a hardware-enforced data diode.
Installation is simple and rack-ready options are available – HSL offers a 4U kit for up to 10 isolators and a 1U kit for up to 3 transmitter pairs, plus a 12-port 12V DC power junction box. The unit ships with a universal AC adapter for global operation and features a robust enclosure designed for industrial and control-room environments. Warranty coverage and a specified product life-cycle provide predictable support for integration projects.
Free Ground Shipping
We offer free ground shipping on every purchase of $300 and more for US and US territory. Please choose "Free Ground Shipping (UPS/USPS)" option at checkout.
UPS Ground
UPS provides up-to-date tracking information. Ground service takes anywhere from 2-7 working days for delivery depending on destinations. UPS Ground does not deliver on Saturdays, Sundays or Holidays.
USPS Priority Mail/USPS Express Mail
For all shipments shipped via USPS, we offer 'DELIVERY CONFIRMATION' number with each package. Difference between tracking number provided by UPS vs USPS Delivery Confirmation number is: Delivery Confirmation status is updated when the delivery has been made or when the package has made it through major USPS stations.
Air Shipment
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International Customers
We offer shipping via USPS/UPS for our international customers. You can find different shipping options during checkout.
Most items ordered from AVProSupply will be shipped out from our California Warehouse. Will-Calls are only allowed with Appointment Only - Please call Customer Service to set one up between the hours of 9am to 6pm PST.
We Offer A 30-Day Money Back Guarantee:
Our main goal is to ensure your complete satisfaction with our service and products. If, for any reason, you are not 100% satisfied with your purchase, you can return it within 30 days of the purchase date for a full refund. Our 30-day money back guarantee applies to all of the products we sell, except for: TVs and monitors 20" and larger, Special Order merchandise, or any item indicated as non-returnable. Shipping is not refundable. Prior to returning your purchase, a Return Merchandise Authorization (RMA) number will be provided to you.
Refunds:
Refunds on returned items will be issued in the same payment form as received from the customer at the time of purchase. Once we receive the product and it passes inspection, we will credit your account. Please allow 3 - 6 business days for a credit to appear on your account.
Exchanges:
If the item was sent back to us for an exchange, please allow 3 - 5 business days for the replacement to be processed.
No Returns/Exchanges on the following:
- TVs and monitors 20" and larger
- Special Order merchandise
- Any item indicated on the website as non-returnable
For more information see our official Return Policy
