On Wed, 27 Apr 2005, Douglas A. Gwyn wrote:

> Frank Arnold wrote:
> > William Korvine schrieb:
> Since the DLV11-J (aka DLVJ1-M) doesn't provide flow
> control signals (RI, DSR, CTS as seen at the PC) you
> need to disable the "hardware handshaking" for the port
> on the PC (usually done as options in the terminal
> emulator program, e.g. HyperTerminal).

Minor nitpick: that isn't flow control signals, it's modem control
signals. People have only perverted them into flow control... DEC never
did that, and was actually right on that detail... (Actually, DEC was
doing serial communication exactly by the standard, something very few
companies can claim, and the reason why we have all the confusion and
almost working connections...)

> > > 4. The front pannel has what appears to be a 3-pin power connector on the
> > > back. I've not seen anything that plugs into it. What goes there and do I
> > > need it?
> > Could be the power-control bus, to remoteley switch other boxes, peripherals
> > and racks.
>
> Yes, it's for a so-called "remote sense cable", used
> so that the front-panel power switch can control a
> power distribution box that is normally used in
> cabinets as the place into which all power cords
> (except the power districution box's!) are plugged.

It's also used by emergency shutdown. Overheating in the computer room for
example. :-)

> You don't have to use this; just plug in and use the
> power switch on the rear of the BA11-N box.

Correct. The power bus is enabled only if you want to. The distribution
box have a small tree-way switch, where you select off/on/powerbus.

Johnny

Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: bqt@update.uu.se || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol
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