30 Aug
2004
30 Aug
'04
6:32 p.m.
On Aug 30 2004, 23:15, Tony Duell wrote:
the
> But something was nagging at me and I went and
looked at the
prints.
>
> The DEC DLV11-J, a 4 port unbuffered SLU had a clock I/O pin on
it's Berg
> connector.
> It could output the 16x internal baud clock on that pin to drive a
terminal,
or accept a
16x external clock from a terminal, for each UART.
That pin was commonly used with a DEC current loop converter module, number of which I forget (DLV11-K ???). That box
plugged into the
DLV11-J
at one side and had an 8 pin Mate-n-lock on the other
to connect to a
standard DEC current loop cable. It also included a 110 baud (1760Hz)
generator, since the DLV11 couldn't do 110 baud as standard and the
most
common reason for wanting a current loop interface was
to connect to
an
ASR33.
Yes, it's a DLV11-K, and is also why the DLV11-J has 12V supplied on
one of the connector pins. I've got one here.
--
Pete Peter Turnbull
Network Manager
University of York