[CA] [CA11] STLK Fail Lightning Issue

[Chuck - Raymarine - Moderator]

General comment: No make/model has been specified for the AIS receiver / transceiver. Per my earlier response, it the AIS receiver/transceiver features a SeaTalkng / NMEA 2000 communications interface, then it should be interfaced as a spur to the system's powered and properly terminated SeaTalkng / NMEA 2000 backbone rather than to the MFD's NMEA 0183 communications interface.

Q1. Should the Autohelm control display be daisy-chained with the Tridata and Wind?
A1. If the autopilot control head, Wind, and Tridata are closely located to backbone's spur socket (permitting the total length of Spur Cable within the daisy chain to be no greater than 6m), then autopilot control head, Wind, and Tridata may be daisy chained to one another. Although this is not considered to be a best installation practice, it is permissible to daisy chain these products.

Q2. Do we need a Network Switch and if so, where does that go?
A2. Given the equipment shown within your diagram, no HS5 RayNet Network Switch would be required. However, should you plan on installing a compatible Raymarine product having an Ethernet communications interface in the future, then a HS5 RayNet Network Switch would be required. It is considered to be best installation practice to install a HS5 RayNet Network Switch within new systems to permit easy expansion of such systems.