I used a harness. Pin 1 is on the foward engineers side of locomotive. You need the harness that allows you to put the decoder back near the cab. A 1" harness should do. Dont know if it is the reversed harness or not.
I put the MC2 in my HH-660. I dont remember if I hardwired or used an 8pin plug. I will crack it open this evening and check. You may need a reversed plug.
It MIGHT be too tall, especially if the pins don't go all the way down, though it is not as tall as the MC2, it is probably taller than the 8 pin plug on the MC2. But I'd think those connectors would be the bigger problem. You can measure the space around the 8 pin to see.
Still wish they'd make an HH900 so I could buy one....
--Randy
Modeling the Reading Railroad in the 1950's
Visit my web site at www.readingeastpenn.com for construction updates, DCC Info, and more.
Thanks, Randy. That confirms my own suspicions from the pic.
Tom
https://tstage9.wixsite.com/nyc-modeling
Time...It marches on...without ever turning around to see if anyone is even keeping in step.
Looking at the pictures of the MC2 install, I think the DP2 would interfere with the connectors located around the 8 pin socket.
Greetings -
Just picked up a Atlas B&A HH660 for a pretty good price. I don't have too many B&A items for my NYC layout so this will be a nice addition.
Anyhow, on the TCS website they recommend a MC2 decoder. I was wondering if a DP2X might work instead because it would plug right into the NMRA socket. However, I'm wondering whether the DP2X would bump into the onboard sockets and not seat completely...or not have enough overhead room for the shell to seat properly...or both.
I e-mailed TCS to ask them but haven't received a reply yet. Wondered if anyone else had tried it or another decoder and found out it fit. The DP2X measures 0.462" x 0.687" x 0.12".