NEC POWERMATE V Service Manual page 189

Quad-Speed CD-ROM Reader Specifications and Jumper Settings
T
IDE connector — connects the reader to the secondary PCI/IDE connector on the
system board via an I/O cable.
T
Power connector — connects the reader to the power supply via a power supply
cable.
There are two jumper blocks on the back of the CD-ROM reader. Jumpers on the block
next to the IDE connector configures the reader as a master (factory set) or slave. Jumpers
on the second block enables or disables the eject function of the reader and sets test modes
(factory use only). Descriptions of the jumpers are as follows:
T
CS (cable select) — enables/disables the cable select feature. Factory set at
disabled (pins not jumpered).
T
SL (slave) — enables/disables the slave feature. Factory set at disabled (pins not
jumpered)
T
MA (master) — enables/disables the master feature. Factory set at enabled (pins
jumpered)
T
T0 (test mode), Toshiba model only — used at the factory for hard drive tests.
Factory set at disabled (pins not jumpered)
T
T1 (test mode), Toshiba model only — used at the factory for hard drive tests.
Factory set at disabled (pins not jumpered)
T
PRV/AlW (prevent/allow), Toshiba model only — disables or enables the CD-
ROM disc tray eject function. Factory set at allow (pins jumpered).
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