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GENERAL SPECIFICATIONS
Input Protocol:
IBM 3270 coax LU1 or LU3 protocol and Centronics
parallel protocol
Output Protocol:
Epson parallel, internal interface connection
Receive Data Rate:
Maximum burst: 2.3587 million bits/second
Data Buffering:
4K byte coax communication buffer
Language Support:
Standard IBM 3174 language sections (See
Appendix A, Command 8 for list of languages.)
Connectors:
Female BNC coax connector and mini-Centronics
parallel connector for alternate host (PC) sharing
Indicators:
One red LED
One green LED
Switches:
Two push buttons
Power Required:
+5V @ 240mA, supplied by the printer
LED SPECIFICATIONS
LED Indication
Green ON
Green OFF
Red ON
Red Blinks
Twice
Red Remains
on after turn on
status
The control unit (CU) is communicating with the interface card
(within past 30 seconds).
The CU is not communicating with the interface card.
The program attention (PA) manual option (see Appendix A,
command 35) is active and the printer received a request (from
the host software) for a PA button to be pressed by the user so
printing can continue.
The user pressed and released both buttons at the same time
(for less than 1 second) sending a cancel message to the host.
The interface encountered problems during its self test.
(The red LED goes off after a normal self test.)