Compaq 5532 - Manual (Page 139)

Terminating Resistor Configurations
139
The shipping kit for this printer includes 220 ohm pull-up and 330 ohm
pull-down alternate terminating resistors. If you install the 220 ohm pull-
up resistor, you must also install the 330 ohm pull-down resistor.
Table
5 lists the three terminating resistor configurations you can install:
Removal and Installation
The procedure for removing and installing terminating resistors is
provided in your
Maintenance Manual.
IMPORTANT This is an involved maintenance procedure; only a trained
technician should perform this procedure.
Table 5. Terminating Resistor Configurations
Configuration Pull-Up (RP1) Pull-Down (RP2)
Factory Default 470 ohm 1K ohm
Alternate 1 220 ohm 330 ohm
Alternate 2 1K ohm none