[CA] [CA11] Block diagram Oregon fishing boat with Axiom

[Chuck - Raymarine - Moderator]

lukerabun,

Q1a. So when I connect the data master (axiom Pro16) to the backbone how will that effect the LEN balance or will it since it has it's own power supply.
A1b. MFDs are neither designed to to supply power to a backbone nor be powered via their NMEA 2000 communications interface. The correspondingly have a very low LEN.

Q1b. If it does effect it what would be the LEN for the AP16?
A1b. The LEN for MFDs, which was specified within the previously linked FAQ addressing LEN loading, is 1.

Q2. Does it matter if the Quantum2 is connected to the HS5 switch or to the data master?
A2. Negative. However, it would be considered to be a best installation practice to have the MFDs and compatible Ethernet peripherals to be interfaced to one another via a network switch. When so interfaced, the radar transducers will be available to the system's other MFD should the Axiom Pro MFD be switched OFF or suffer a failure.

Q3. Is there a list of the LEN #s for these products somewhere or must I sift through the manuals for this info? Seems that most of them are a 1?
A3. As indicated within the he previously linked FAQ addressing LEN loading, the LEN values for currently produced Raymarine products may be found within the Specifications section of each product's respective installation guide. That said, except for the autopilot control head, all of the items which will be interfaced to the backbone and are shown within your diagram each have a LEN of 1. The autopilot control head has a LEN of 3.