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SHIFT REG.
RECEIVE
FLAG
TO DATANET-30 REGISTERS
TRANSMIT
FLAG
DSS
Figure 16. Character Buffer Transmit and Receive
2-WIRE
4
...
HALF-
DUPLEX
{.:
~
WORD BUFFER CHANNEL (WBC).
The word buffer channel provides the interface with another
DATANET-30 via a half-duplex transmission line.
The WBC buffers a 20-bit word (plus start/
stop bits) at transmission speeds of 300, 600, 1200, 1800, 2000, or 2400 bits per second, depending
on system considerations.
The code level plug and the timing connector plug would be wired in
SHIFT
REG.
RECEIVE
FLAG
9
I
DATA REGISTERS
FROM/TO DATANET-30 REGISTERS
/
TRANSMIT
FLAG
/
DSS
Figure 17. Word Buffer Channel Transmit and Receive
[ID£1J£~~1J~ ~@------------
-25-
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