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B–4
Host I/O Interfaces
Dataproducts Parallel Interface
This interface allows the printer to operate with controllers designed for
Dataproducts printers. The interface is capable of transferring up to 500,000
characters per second. The maximum cable length from the controller (host
computer) to the printer is 40 feet.
NOTE: Optional adapter cable (p/n 703316–001) and termination resistors
RP1 330Ω (p/n 101381–331) and RP2 220Ω (p/n 101381–002) are
required.
Dataproducts Interface Connector Pin Assignments
The printer provides a 36–pin D–shell connector on the rear panel for connection
of a parallel interface cable. This 36–pin connector requires a cable adapter to
convert it to a 50–pin AMP connector for Dataproducts compatibility. Contact the
factory for the adapter (p/n 703316–001). Table B–2 lists the pin assignments of
the Dataproducts cable adapter.
Table B–2. Dataproducts Parallel Interface Pin Assignments (Cable Adapter)
Input Signals Output Signals
Signal Pin Signal Pin
DATA LINE 1 19
Return 3
READY/FAULT 22
Return 6
DATA LINE 2 20
Return 4
ON LINE/SELECT 21
Return 5
DATA LINE 3 1
Return 2
DATA REQUEST/ACK 23
Return 7
DATA LINE 5 34
Return 18
Interface Verif.
45, 46
DATA LINE 6 43
Return 42
PAPER INST 30
Return 14
DATA LINE 7 36
Return 35
DATA LINE 8 28
Return 44
DATA STROBE 38
Return 37