Q about an OLD MIDI Timepiece

[RiffWraith]

Howdy - I have an old Parallel MIDI Timepiece - can anyone please tell me if they have had success with this unit (not the new USB unit) with converting incoming MTC to LTC? I will be sending MTC from Cubase to the MOTU. I see an round 8-pin RS-422 on the back of the MOTU, and need to go to 9-pin RS-422. I found an adapter cable, and If the cable is wired internally correctly, there theoretically should not be a problem there.

Anyone have any success/failure stories?

Thanks in advance.

[1nput0utput]

I don't think the 8-pin mini-DIN ports do anything when the MTP-AV is in the standalone mode, and I doubt they would work to transmit Sony 9-pin machine control to a deck. (I'm assuming that that is what you want to do.) If you want to chase incoming MTC and you need to output LTC, why not simply use the MTP-AV's LTC output? The LTC output will produce a signal whenever the MTP-AV is rolling (including when it is chasing timecode from another source).

[RiffWraith]

"I don't think the 8-pin mini-DIN ports do anything when the MTP-AV is in the standalone mode, and I doubt they would work to transmit Sony 9-pin machine control to a deck."

Yeah - that's actually one of the questions I have. The 8-pin RS-422 ports are labeled "Net" and "Mac" - terms I am unfamiliar with when it comes to sync signals and TC. Those ports are for what, then? Control? That wouldn't make sense...

"why not simply use the MTP-AV's LTC output? "

Because it is a 1/4" connector - and I need to go to a 9-pin RS-422 connector. I can't seem to find an adapter cable for that.

Assuming I did - if the MTP-AV sees incoming MIDI TC, then the LTC 1/4" output will output LTC based on that MIDI TC?

Thanks for the response.

[1nput0utput]

I misspoke a bit in my last message: The Net port is active when the interface is in the standalone mode: It is used for expanding an MTP-AV with another MTP-AV or older MTP model. The two interfaces work together as one big interface. The Mac port is for connecting to a serial port on an older Apple computer. Neither of these ports can be used for Sony 9-pin machine control. (Again, I'm assuming that's what you want to do with a 9-pin D-sub RS-422 connection, but you haven't actually explained that part yet.)

If you need to control a deck with Sony 9-pin, you should look at the Digital Timepiece (a legacy MOTU product). However, I think the DTP would need to be the timecode master, which means that it wouldn't be resolved to your MTC source. You could probably make that other device chase MTC from the DTP. Configuration is much less complicated when the DTP is the master timecode source.