Raymarine A06064 SeaTalkNG 5-Way Connector Block

Raymarine A06064 – SeaTalkNG 5-Way Connector Block

The A06064 is Raymarine’s SeaTalkNG 5-way connector block — a central junction point for the SeaTalkNG backbone that provides two backbone pass-through ports and three spur ports in a single compact housing. It allows up to three devices to tap off the backbone at one location, making it the preferred alternative to chaining multiple T-pieces in areas where several instruments or sensors are mounted close together, such as a helm station or nav desk.

Product Details

• Part Number: A06064
• Brand: Raymarine
• Type: SeaTalkNG 5-Way Connector Block
• Backbone Ports: 2 (pass-through, blue SeaTalkNG backbone connectors)
• Spur Ports: 3 (white SeaTalkNG spur connectors)
• Total Ports: 5
• System: SeaTalkNG / NMEA 2000-compatible network backbone
• SKU: 152-A06064

Compatible Applications

• Any SeaTalkNG backbone installation where three or more devices need to connect at a single backbone location
• Helm stations and nav desks with multiple Raymarine instruments, MFDs, autopilot heads, or sensors in close proximity
• Installations where chaining multiple T-piece connectors (A06028) would create unnecessarily long backbone segments between closely spaced devices
• Providing a power cable connection point on the backbone while still leaving two or more spur ports free for devices
• Engine room or below-deck junction points where multiple sensors connect to the backbone at one location

5-Way Block vs. T-Piece — Which Should You Use?

The A06028 T-piece connector provides one backbone pass-through and one spur port — ideal for single device drop-offs along the backbone. The A06064 5-way block provides two backbone pass-throughs and three spur ports — the right choice when multiple devices cluster at one location. Using a 5-way block keeps the backbone run shorter and the installation tidier than chaining three separate T-pieces.

Installation Notes

• The two blue backbone ports pass the backbone trunk through the block — connect your incoming and outgoing backbone cables here
• The three white spur ports connect to individual devices via spur cables
• Port type is labelled on the connector body — do not connect a spur cable to a backbone port or vice versa
• Cap any unused spur ports with SeaTalkNG blanking caps to maintain weatherproofing
• No terminator is needed at this block — terminators belong only at the two open ends of the full backbone
• Mount in an accessible location, protected from direct water spray where possible

Parts Desk Insights

Best Use Case: The A06064 is the right pick any time three or more devices need to connect at a single point on the backbone. It’s particularly efficient at a helm cluster where an MFD, autopilot head, instrument display, and the backbone power cable all terminate in the same area — one 5-way block handles all of them cleanly instead of requiring three T-pieces daisy-chained together.

Common Issues: The most frequent installation mistake is confusing the backbone ports (blue) with the spur ports (white). Connecting a spur cable to a backbone port — or routing the backbone trunk through a spur port — will cause the network to behave erratically or fail to initialise. Also note that unused spur ports must be capped; an open spur port on a SeaTalkNG network can cause intermittent connectivity issues. If you are connecting non-Raymarine NMEA 2000 devices to this block, see the adaptor options listed in Related Products below.

Related Products & Accessories

• Raymarine A06028 SeaTalkNG T-Piece Connector — Single-spur backbone junction for individual device connections
• Raymarine A06031 SeaTalkNG Backbone Terminator — Required at both open ends of the backbone
• Raymarine A06049 SeaTalkNG Power Cable — Backbone power feed; connects to any available spur port on this block
• Raymarine A06039 SeaTalkNG Spur Cable – 1M — Short device spur cable
• Raymarine A06040 SeaTalkNG Spur Cable – 3M — Mid-length device spur cable
• Raymarine A06041 SeaTalkNG Spur Cable – 5M — Long device spur cable
• Raymarine A06035 SeaTalkNG Backbone Cable – 3M — Backbone trunk cable
• Raymarine A06036 SeaTalkNG Backbone Cable – 5M — Longer backbone trunk cable
• Raymarine E22158 SeaTalkNG Backbone Kit — Complete backbone hardware kit
• Raymarine T70134 SeaTalkNG Starter Kit — Entry-level network kit
• Raymarine A06076 SeaTalkNG to DeviceNet Adaptor Cable – 1M — NMEA 2000 DeviceNet adaptor
• Raymarine A06045 NMEA 2000 DeviceNet to SeaTalkNG Spur Adaptor Cable – 400mm — NMEA 2000 DeviceNet adaptor

Technical FAQ

How many devices can connect to this block?
Three devices via the three spur ports. If you also use one spur port for the backbone power cable, two ports remain for devices. Add additional T-pieces or 5-way blocks along the backbone for more connection points.

Can I use the 5-way block at the end of the backbone?
Yes — if the block is at one end of the backbone, one backbone port connects to the backbone trunk and the other gets a terminator (A06031). The three spur ports remain available for devices.

Do I need to terminate this block?
No — terminators go only at the two physical ends of the backbone, not at intermediate junction points. If this block is at an end of the backbone, fit a terminator to the unused backbone port.

What are blanking caps and do I need them?
Blanking caps seal unused spur ports to keep moisture and debris out of the connector. They are recommended for any unused port, especially in exposed installations. Check if they are included with your block or source them from Raymarine’s accessories range.