Printronix L1524 - Manual (Page 122)

B–6 Host I/O Interfaces
Dataproducts Parallel Interface Configuration
The printer is configured for the Dataproducts interface via the “Host Interface”
menu as described in Chapter 3, “Configuring the Printer”. The following interface
configuration parameters may be modified to meet specific application
requirements:
Data Bit 8 Enable
P I Ignored Enable
Data Polarity Standard
Resp. Polarity Standard
Latch On Data Middle
Prime Signal Disable
TOF Action Reset
Buffer Size In K 64
* = Factory default setting
Termination Resistors
For parallel interface configurations, the printer is equipped with 470/1K ohm
pullup/pulldown terminating resistors located on the printer motherboard.
Generally, these terminating resistors are suitable for most applications. If,
however, the standard terminating resistor pack is not compatible with the
particular interface driver requirements of your host computer, other values or
combinations of pullup/pulldown resistors may be necessary.
If you are experiencing communication problems between the printer and host;
such as double characters, incorrect characters, or loss of data, the cause may
be the value of the termination resistors on the motherboard. Contact your
authorized service representative for instructions on replacing the termination
resistors.
Table B–3. Dataproducts Parallel Interface Termination Resistors
Part Number Description Main Controller Location
101381–331 330
Ω
Pull Up Resistor RP1
101381–002 220
Ω
Pull Down Resistor RP2