AT&T 610 User Manual page 71

User's Guide
AIIgust:
1985
This terminal is capable of operating with AT&T Printer
Models, 455, 458, 475, 5310, and 5320. Limitations to the use
of the 458 and 475 Printers are:
458 Printer -- Pins 10, 18, 19, and 21 (current loop
leads), pin 11 (reverse channel lead), and
pin 14 (secondary transmit data) of the
printer are not bridged through to the 610
BCT terminal main port.
475 Printer -- Pin 14 (fault indication) of the printer is
not bridged through to the 610 BCT terminal
main port.
Pin 4 (Clear To Send) reflects the status of pin 5 (Request
To Send) from the printer.
Flow control from the printer (DC1 for X-on, DC3 for X-off)
is recognized by the 610 BCT. The 610 BCT will stop sending
data to the printer when a DC3 is received. Data will again be
transmitted when a DC1 is received. If a DC3 from the printer
is not followed by a DC1 within 30 seconds, the "mc" or "pol"
ind'ica tor becomes reverse video blinking to indicate a possible
printer problem. Receiving a DC1 from the printer or dropping
Data Terminal Ready (OTR) on the AUX port clears .the error
condition.
If a received escape sequence is one that the terminal
recognizes, the sequence will be acted upon and the data (7 bits
with the 8th as space) sent to the printer if the screen-label
PRINT ON-LINE is on (an asterisk (* )present in the label).
I f
media copy is being used, the data is sent only to the printer.
Print
On-Line
Receiving the escape sequence ESC [?5i will cause the PRINT
ON-LINE screen-labeled key to be turned on; receiving the
sequence ESC [?4i will turn PRINT ON-LINE off. When the terminal
has Local Echo on, keyboarded data is sent to the printer during
PRINT ON-LINE. Print On-Line
is
terminated on entering Set-Up.
Operations
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