APC PS9-DTE

Overview

The APC PS9-DTE is a surge protector designed specifically for RS232 serial lines, providing essential protection for communication circuits against voltage spikes. It installs directly into a DB-9 port and safeguards one to nine data lines by reacting within 1 nanosecond to divert surge currents up to 0.2 kiloampere. This compact device is ideal for environments where serial connections remain critical, such as laboratories, industrial control systems, and point-of-sale terminals.

Key features

• Protects RS232 serial communication lines by blocking voltage surges that could damage connected equipment
• Supports up to nine data lines, ensuring comprehensive coverage for standard DB-9 serial connections
• Ultra-fast response time of 1 nanosecond minimizes the risk of transient damage
• Handles peak surge currents up to 0.2 kiloampere, effectively diverting harmful spikes to ground
• Includes both male and female DB-9 connectors for seamless inline installation without additional adapters
• Compact and lightweight housing fits easily into tight spaces, including workstations and service carts
• Meets UL 497B safety standards, providing compliance assurance for regulated facilities
• Requires no external power or rack mounting, simplifying deployment in various settings
• Operates reliably across a wide temperature range from 5 to 113 degrees Fahrenheit
• Backed by a limited lifetime warranty and accompanied by a user manual for straightforward setup

Key specs

• Supported data lines: 1 to 9
• Surge response time: 1 nanosecond
• Peak surge current capacity: 0.2 kiloampere
• Connector type: DB-9 male and female
• Dimensions: 2.99 x 1.42 x 0.59 inches
• Operating temperature range: 5 to 113 °F
• Compliance: UL 497B surge protection standard
• Power requirements: none (passive device)

Connectivity and compatibility

This surge protector is designed to fit directly into standard DB-9 serial ports, making it compatible with a wide range of devices that use RS232 communication. It works well with laboratory instruments, building automation controllers, point-of-sale systems, and legacy industrial equipment that rely on serial data transmission. The included male and female connectors allow it to be inserted inline without modifying existing cables or setups.

Installation and setup

Installation is straightforward and requires no external power source or rack mounting. The compact size and lightweight design allow it to be placed at a workstation, inside a service cart, or in the field without disrupting current cabling arrangements. The user manual provides clear instructions to ensure proper connection and optimal protection.

Ideal uses and environments

This surge protector is well suited to environments where RS232 serial communication remains essential and equipment protection is critical. It fits naturally in laboratory settings, industrial automation, retail point-of-sale terminals, and any location where legacy serial devices are still in operation. Its fast response and compliance with safety standards make it a reliable choice for protecting sensitive hardware from electrical surges.

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Shipping costs are calculated at checkout based on destination, total weight, and selected speed. Free shipping applies to carts over $100 (excluding heavyweight items). All available options and final pricing are clearly shown before payment so you can choose the service that best fits your needs.

Deliveries are handled by major carriers such as USPS, UPS, and FedEx. Estimated delivery times are displayed at checkout and may vary depending on service level and location. Please note that these are estimates and can be affected by weather, holidays, or carrier volume. Once your order ships, you’ll receive a tracking number for real-time updates from pickup to final delivery.

Providing an accurate shipping address helps prevent delays, and changes may be limited once the order has been dispatched. P.O. boxes are supported only when permitted by the selected carrier. Packaging and handoff are optimized to protect items during transit, though oversized or high-weight products may require special handling. All shipping methods and any related constraints are clearly shown during checkout.

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Returns are accepted within 30 days of delivery. Items must be unused, in the same condition received, with tags, manuals, accessories, and original, unaltered packaging. Any item kept will be deducted from the refund. Start a return by sending us an email. Items sent back without approval may be refused or returned to the sender.

Some items are not returnable: opened TVs/combos/monitors 37″+, opened computers or software, electronic downloads, opened consumables (film, paper, bulbs, media, ink), custom or modified computers, special-order or “nonreturnable” items, submerged underwater gear, and opened educational media.

After inspection, refunds are issued to the original payment method; allow 5–7 business days for the credit to post. Shipping, handling, customs duties, and import taxes are nonrefundable. If an item is used, incomplete, or not in original condition, a 30% restocking fee may apply. Direct exchanges are not offered; purchase the replacement and return the original for a refund.

We act solely as a reseller. Any product warranty is provided and administered by the manufacturer, not by our store. That means eligibility, coverage, and outcomes are determined by the manufacturer’s policy for each brand and model. Before purchasing, we recommend reviewing the warranty terms on the manufacturer’s website or in the product documentation to confirm what is covered and for how long.

If you need warranty service, please file the claim directly with the manufacturer. They may require proof of purchase, the product serial number, original packaging, photos, or basic troubleshooting. Some brands ask you to register the product or obtain a case number before shipping it for repair or replacement. We don’t submit or approve claims, but we can point you to the correct support links and contact details.

Keep your invoice and packaging in a safe place, and report any functional issues to the manufacturer as soon as they appear. If you’re unsure whether a problem is covered, the manufacturer’s support team can confirm next steps and timelines. While we cannot intervene in decisions or outcomes, we’re happy to provide purchase documentation or guidance so you can move through the warranty process smoothly.

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