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NMEA 0183 PC OPTO-Isolator Cable, RS232 DB9 Female, Shielded (Isolated to PC)
Add isolation to an RS232 port to protect against ground loops. The OPTO-4 provides a safe and low cost way of connecting an RS422 (NMEA 0183) system to an RS232 (PC COM port) system, or any other device with a standard RS232 9-pin port.
The OPTO-4 provides comprehensive galvanic OPTO-isolation to protect the PC input/receiver, plus important spike suppression to improve the PC output/transmitter protection. Initially designed for systems wishing to receive NMEA 0183 data without the risk of ground loop damage, the flexible OPTO-4 can be used to interface any RS422 and standard RS232 connection, whilst powering itself from the RS232 port, making installation simple and very quick.
The Actisense opto isolator design integrates an over-molded case for excellent water resistance and a small footprint for installation into tight spaces.
Features:
- One RS422 OPTO-isolated input
- One RS422 (NMEA 0183) output
- Up to 115200 baud
- Port powered
- Shielded cable and case
- Protects PC input/receiver from damage
- Water resistant cable.
- Ruggedized over-molded case suitable for harsh environment
- Quick and easy to install
Technical Specifications:
Electrical
- NMEA Listener / Input Isolation - 2kV Opto-Isolation between Red / Black NMEA Input Pair and all other Connections
- NMEA Listener / Input Voltage - +/-15V Continuous Maximum, +/-35V Max < 1 Second
- NMEA Listener / Input Signal Thresholds - Logic ‘0’ +2V to +15V, Logic ‘1’-15V to 0V
- NMEA Talker / Output Voltage & Current - Dependent on Host RS232 Interface. Typically +/-5V to +/-15V @ 10mA Max
- RS232 Voltage on Host - +/-7V to +/-15V
- RS232 Port Total Current Consumption - 2mA to 5mA depending on RS232 Voltage
- Speed / Baud Rate - 4800 to 115200 Baud
Mechanical
- Housing Material - PVC Black
- Thumb Screw Material - PVC Orange
- Screw - Steel, Nickel Plated, M2.8 Thread
- DB9 Connector - 9 Pin Female
- Cable Length - 1.5m
- Cable Wire - 22AWG (17/34AWG) Tinned Stranded Copper
- Cable Jacket - PVC
- Shield - Internal Copper Foil Shield
- Cable Outer Diameter - 5.5mm
Approvals and Certifications
- Operating Temperature - -20°C to +70°C
- Electrical Specification - Meets IEC 61162-2
- Weight - 100g
- Guarantee - 3 Years
- UL Certification - Cable E137250
Specifications:
- Connection Gender: Female
- Data Interface: NMEA 0183
- Cable Length (Meters): 1.5m
- Box Dimensions: 2"H x 4"W x 5"L WT: 0.25 lbs
- UPC: 5060998710430
Quick Guide (pdf)
Brochure (pdf)
FAQs
Product & Usage
1. Is your gear authentic and warranty-backed?
Yes — we are an authorized US dealer for 300+ marine electronics brands. Every order ships with the manufacturer’s full warranty.
2. Are these products beginner-friendly?
Yes. Our products are designed for both seasoned boaters and first-time owners. Each unit ships with a manufacturer manual, and we’re happy to answer setup questions over email.
3. Are these products built for marine conditions?
Yes. Marine electronics are engineered for saltwater spray, vibration, and weather. Check the product specs for IPX waterproof rating and saltwater certifications.
Maintenance & Accessories
1. What maintenance does marine electronics require?
Rinse with fresh water after saltwater exposure, store in a dry place, and follow your manufacturer’s cleaning and storage instructions.
2. Can I buy replacement parts and accessories separately?
Yes — we carry replacement parts, mounts, transducers, cables, and accessories for the brands we stock.
3. Do you provide product manuals or installation guides?
Every product ships with the original manufacturer’s manual. Digital copies and detailed installation guides are typically available on the brand’s website.
Warranty & Guarantee
1. Does my purchase include a warranty?
Yes — every order includes the full manufacturer warranty. Coverage length varies by brand (typically 1–3 years for Garmin, Lowrance, Raymarine, Simrad, Humminbird, Furuno, and others).
2. How do I register for warranty coverage?
Register directly with the manufacturer using your unit’s serial number. Manufacturer registration is the fastest path to warranty support if you ever need it.
3. What does the manufacturer warranty cover?
Defects in materials and workmanship under normal use. Damage from impact, improper installation, or saltwater corrosion (without protection) may be excluded. Check brand-specific terms in your unit’s documentation.
4. Can I extend the warranty?
Some manufacturers offer extended-coverage programs through their registration portals. We don’t sell third-party warranty programs.
Purchasing & Support
1. How fast does my order ship?
Orders placed before 4pm EST Monday–Friday ship the same business day via UPS from our NJ or FL warehouses. Continental US delivery typically takes 3–7 business days for Economy.
2. Do you offer bulk or fleet pricing?
Yes — we offer volume pricing for fleet operators, marinas, dealers, and commercial customers. Email support@marineelectronicsdepot.com with your needs.
3. How can I contact support?
Email support@marineelectronicsdepot.com or call during business hours (Mon–Fri 9am–5pm ET). We’re happy to help with pre-purchase questions, order status, or post-sale support.
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