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V6 controller board, Removal and installation – Printronix H-SERIES P7000 User Manual

Page 118

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118

Chapter

5

IEEE 1284 Parallel Interface

V6 Controller Board

For parallel interface configurations, the printer is equipped with 470 Ohm and
and 1K Ohm terminating resistors on the controller board. These are suitable
for most applications. See Figure 25.

If the standard terminating resistor pack is not compatible with the particular
interface driver requirements of the host computer, other RP1 and RP2 values
may be required. 220 Ohm and 330 Ohm alternate terminating resistors are
provided with the printer. If you install the 220 Ohm resistor, you must also
install the 330 Ohm resistor. Possible terminating resistor combinations are
shown below.

Figure 25. Terminating Resistors, V6 Controller

Removal And Installation

The procedure for removing and installing terminating resistors is provided in
your

Maintenance Manual.

CAUTION

This is an involved maintenance procedure. To avoid damage to the
equipment, only a trained technician should perform this procedure.

Configuration

RP1

RP2

Factory Default

470 Ohm

1K Ohm

Alternate

220 Ohm

330 Ohm

7ht
er

m

rs

Default: 470/1K Ohm
Alt: 220/330 Ohm

RP1 and RP2