AMT Datasouth documax 3300 User Manual page 145

SIGNAL P/N
DTR 20 When the printer is ready to
11
a. Print buffer is nearly full
b. Paper out condition exists.
c. Carriage jam condition
d. Printer is off line.
RTS 4
CTS 5
DSR 6
DCD 8
NO MODEM CONTROL
accept data, this line will be high
(+EIA LEVEL). This line will go
low (-EIA LEVEL) when:
(within 512 bytes)
detected.
This signal will always be held
high
CTS is always assumed high
DSR is always assumed high
Same as DSR
MODEM CONTROL
When the printer is ready to
accept data, this line will be high
(+EIA LEVEL). This line will go
low (-EIA LEVEL) when:
a. Print buffer is nearly full
(within 512 bytes)
b. Paper out condition exists.
c. Carriage jam condition
detected.
d. Printer is off line.
RTS will be held high when the
interface is ready to transmit data.
The interface will monitor the
CTS signal generated by the host
in response to RTS. When this
signal goes on (high), the host is
ready to receive data.
If DSR is low, the interface will
ignore all data received on the
serial port. This signal must hold
high for the interface to receive
and transmit data.
Same as DSR
Interface Specifications B-9
User's Guide