<s>
The	O
IBM	B-Device
1711	I-Device
Data	O
Converter	O
was	O
part	O
of	O
the	O
IBM	B-Device
1710	I-Device
process	O
control	O
computer	O
.	O
</s>
<s>
The	O
1711	O
contained	O
an	O
analog-to-digital	O
converter	O
that	O
accepted	O
signals	O
from	O
the	O
IBM	B-Device
1712	I-Device
Multiplexer	O
and	O
Terminal	O
Unit	O
that	O
were	O
between	O
-50	O
millivolts	O
and	O
+50	O
millivolts	O
and	O
converted	O
them	O
into	O
signed	O
,	O
four	O
decimal	O
digit	O
numbers	O
that	O
were	O
stored	O
in	O
the	O
1710s	O
core	B-General_Concept
memory	I-General_Concept
.	O
</s>
<s>
The	O
1711	O
also	O
contained	O
address	O
circuitry	O
for	O
the	O
IBM	B-Device
1712	I-Device
Multiplexer	O
.	O
</s>
<s>
Optional	O
1711	O
features	O
included	O
contact	O
sense	O
,	O
contact	O
operate	O
,	O
analog	O
output	O
,	O
interrupt	B-Application
,	O
and	O
process	O
branch	O
indicators	O
.	O
</s>
<s>
While	O
all	O
this	O
and	O
more	O
would	O
fit	O
comfortably	O
on	O
a	O
single	O
IC	O
today	O
,	O
the	O
IBM	B-Device
1711	I-Device
occupied	O
a	O
three	O
section	O
rack	O
cabinet	O
.	O
</s>
