What is the Delta R-bus? (& lesser known delta cards)

[supernova777]

manual: www.m-audio.ca/images/global/manuals/DeltaR-BUS_Manual.pdf
compatible with win95, winME, win98, win2000, winNT, macOS, macOSX

Minimum System Requirements
For the PC
-Windows 95, 98,NT, 2000 or ME
-UDMA EIDE ATA 33/66 Harddrive
-96kHz Operation
-Pentium III 500Mhz
-128 MB of PC100 RAM (256 recommended)
-48kHz Operation
-Pentium II 400
-64 MB of SDRAM (128 recommended)
For the Mac
-OS 8.6 or higher
-G4, G3 or G3 accelerator
-128 MB RAM - (96kHz operation)
-64 MB RAM - (48kHz operation)

http://www.macworld.com/article/1020055/rbus.html

somewhat rare version of the delta series cards that had a different interface

The Delta R-Bus features 24-bit 8-channel output that is used to transfer digital audio and MIDI control information to and from R-BUS equipped products.

Such devices include:
-Roland's VM-7000 series, http://www.roland.com/products/en/VM-7000_Series/


-VM-3100Pro V-Mixers, http://www.rolandus.com/products/details/419

http://www.soundonsound.com/sos/jul99/articles/rolandvm3100.htm

-VS-2480 24-track Digital Studio Workstation, http://www.rolandus.com/products/details/338


-VSR-880 Digital Studio Recorder, http://www.rolandus.com/products/details/421


-VX-5080 128-Voice Synthesizer/Sample Playback module, http://www.roland.com/products/en/XV-5080/

someone on a forum claimed this card is identical to the
delta tdif
http://virtechonline.com/ftp/music/Software/m-audio/delta_1010-1010LT/Disk%201/ZZ%20PRESS/IMAGES/M_AUDIO/DELTATDIF/tdif.jpg

Delta R-BUS PCI Audio Card:
1. Delta R-BUS Audio Card: This is the PCI “host card” that installs into your computer’s PCI slot.
2. 15-pin D-sub connector: This 15-pin D-sub connector attaches to the supplied breakout cable, which provides additional I/O connectors. This breakout cable is a proprietary cable, manufactured by M Audio.
3. R-BUS I/O on 25-pin D-sub connector: This 25-pin D-sub connector attaches via R-BUS cable to an R-BUS capable device.
4. R-BUS “Out” Sync Connector: Using the supplied internal sync cable, connect this Out jack to the In jack of a second, or “slave” R-BUS card and, with the proper Delta panel hardware settings, synchronize the master clocks of up to four Delta R-BUS PCI Audio Cards.
5. R-BUS “In” Sync Connector: Using the supplied internal sync cable, connect this In jack to the Out jack of the primary R-BUS card and, with the proper Delta panel hardware settings,  synchronize the master clocks of up to four Delta R-BUS PCI Audio Cards.

Delta R-BUS PCI Breakout Cable:
1. Word Clock Out: This female BNC connector outputs a word clock signal that is in-sync with the present sample rate clock of the Delta R-BUS./
The output circuitry is designed to drive a word clock signal across 75-ohm coaxial cables and into a device with 75-ohm termination.
2. Analog Out “Left” RCA jack: This jack outputs analog audio to a variety of external target devices. This jack is RCA female and is compatible with RCA male audio cables.
3. Analog Out “Right” RCA jack: This jack outputs analog audio to a variety of external target devices. This jack is RCA female and is compatible with RCA male audio cables.
4. Analog In “Left” RCA jack: This jack inputs analog audio from a variety of external sources. This jack is RCA female and is compatible with RCA male audio cables.
5. Analog In “Right” RCA jack: This jack inputs analog audio from a variety of external sources. This jack is RCA female and is compatible with RCA male audio cables.
6. S/PDIF Out RCA jack: This jack outputs digital audio to a variety of external sources. This jack is RCA female and is compatible with coaxial digital cables.
7. S/PDIF In RCA jack: This jack inputs digital audio from a variety of external sources. This jack is RCA female and is compatible with coaxial digital cables.

[supernova777]

i think the rpc-1 is also r-bus
http://www.oldschooldaw.com/forums/index.php?topic=478.0