30 Aug
2004
30 Aug
'04
10:15 a.m.
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, the
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.
-tony