Mike Or how about hand soldering dozens of resistors to terminate an S100 backplane. It was a major advance when the buss engineers learned to stop worrying and love reactance. (with apologies to Dr. Strangelove)
Steve ----- Original Message ----- From: Hoyt, Mike via CnC-List To: cnc-list@cnc-list.com Cc: Hoyt, Mike Sent: Friday, September 11, 2015 08:26 Subject: Re: Stus-List NMEA 2000 cabling Fred This reminds me of early Ethernet and Arcnet computer network cabling. I was hoping the days or requiring a terminator were in the far distant past. Do you recall if the i50/i60 style networks also require a terminator? It seems to me I had to buy a couple of items that look like that is what they are Mike From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Frederick G Street via CnC-List Sent: Thursday, September 10, 2015 4:48 PM To: cnc-list@cnc-list.com Cc: Frederick G Street Subject: Re: Stus-List NMEA 2000 cabling Jim — is the backbone properly terminated after your addition? There needs to be a terminator at either end of the backbone, after the final “T” for equipment spurs. Hopefully the “network” line you cut into is the backbone cable, not a spur. In this instance, you’d have been far better to use all the same type of cable/connectors as the existing backbone, then use an adapter cable to go to the VHF as needed. If the existing NMEA2k network was Maretron, for example, disconnect the backbone at the location closest to the VHF, put in a Maretron “T” and another backbone cable to where you broke it; then a Simrad to NMEA2k adapter spur to the VHF. Fred Street -- Minneapolis S/V Oceanis (1979 C&C Landfall 38) -- Bayfield, WI On Sep 10, 2015, at 2:36 PM, Jim Reinardy via CnC-List <cnc-list@cnc-list.com> wrote: Joel, Thanks for the reply. With the NMEA 2000 cable connected, I only have the NMEA 0183 source available on that menu. That is how I drew the conclusion that the radio does not see the 2000 network. Jim Sent from Mail for Windows 10 From: Joel Aronson via CnC-List Sent: Thursday, September 10, 2015 2:32 PM To: cnc-list@cnc-list.com Cc: Joel Aronson Subject: Re: Stus-List NMEA 2000 cabling Manual says: This radio can use either NMEA 0183 or NMEA 2000 protocol to receive GPS data from a compatible GPS unit. Note: NMEA 2000 SOURCE options will appear (up to 4 sources showing the actual source name) only if an NMEA 2000 network is connected to the radio and is operational. RADIO SETUP WX ALERT ▲ COM PORT ►GPS SOURCE FAV CH SETU GPS SOURCE ►NMEA0183 LGC3000 LCX113CHD 1. Select RADIO SETUP then GPS SOURCE. (If there is only one NMEA protocol available on your vessel, only that will be shown). 2. Select the desired NMEA source then press ENT. On Thu, Sep 10, 2015 at 3:22 PM, Jim Reinardy via CnC-List <cnc-list@cnc-list.com> wrote: Hello All, Helping a friend add a Simrad RS-35 VHF radio with AIS receiver to his existing B&G instrument system. That currently has 2 Triton displays, a Zeus Touch 7 MFD plus wind and speed/depth transducers. Everything is connected via NMEA 2000, there is no 0183 on the boat. There was no convenient place to tap into an existing T connector, but there was an existing network line running close to the radio. We bought 2 Maretron micro-c field installable connectors, a premade Maretron cable and a Lowrance T connector. I could not find Lowrance/B&G connectors anywhere. I cut the network wire and wired the new connectors according to the color code on the connectors. The color code on the connectors matched the colors in the B&G wire, so I figured I was good to go. When I hook things back up, the existing instruments work fine, but the new radio is not seen by the Zeus, nor does the radio see the network. Since the existing stuff all works fine, I am assuming that the wires are connected in the same positions on the connectors. When I unplug it, I lose all the transducers. I am currently thinking that either the new premade cable is bad, or Simrad B&G uses a different pinout for their connectors than the one specified by NMEA, which Maretron follows. I plan to test the cable using one from my boat, but can anyone confirm the pinout on a B&G system for me? Any other ideas about what to check? Thanks, Jim Reinardy C&C 30-2 “Firewater” Milwaukee, WI ------------------------------------------------------------------------------ _______________________________________________ Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com
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