What is a BC01-R

[Noel Chiappa]

    > From: Chris Zach

    >> Anyone know what an M857 is? I guess it might be a DF11 async answer
    >> mode? 

    > No, it's a single width full height M series board from the early
    > 1970's.

Argh, digit swappping on my part.

The _M587_ is in the DN87 FMPS:

  http://www.bitsavers.org/pdf/dec/pdp10/periph/MP00068_DN87_Universal_Comm_System_Front_End_Jan76.pdf

(pg. 98); it's a dual-width card, an "Async answer modem" (the DF11-BB).

The BC01-R cable is in there (pg. 89), but I don't see the M857. (Web
searches don't turn it up either.)

	Noel