![NEC MT-2550-24874C Скачать руководство пользователя страница 206](http://html.mh-extra.com/html/nec/mt-2550-24874c/mt-2550-24874c_service-manual_248534206.webp)
CD-ROM Reader Specifications and Jumper Settings
D-3
Figure D-1 CD-ROM Connector and Jumper Locations
To the left of the standard 40-pin IDE connector on the back of the CD-ROM reader are
two 6-pin jumper blocks. The block to the extreme left (jumper A) is factory-set with the
pins unshorted (see Table D-2).
Table D-2 Jumper A Settings
Pin
Setting
Signal
1
Disabled (unshorted)
–
2
Disabled (unshorted)
Factory use only
3
Disabled (unshorted)
Factory use only
The jumper block immediately adjacent to the IDE connector (jumper B) sets the following
functions using pin 1 - pin 3 as read from left to right: CSEL, SL, and MA (see Table D-3).
The following is a summary of the jumper settings:
CSEL. (cable select) — enables/disables the host interface cable select
configuration feature. Factory set at disabled (pin not jumpered).
SL (slave) — enables/disables the slave feature. Factory-set at disabled (pin not
jumpered).
MA (master) — enables/disables the master feature. Factory-set at enabled (pin
jumpered).
IDE Connector
Power Connector
Jumper B
(Cable Select/Master/Slave)
Audio Connector
Jumper A
Pin 1 (+12V)
Pin 4 (+5V)
Содержание MT-2550-24874C
Страница 13: ...xiv Contents ...
Страница 203: ...C 4 Hard Disk Drive Specifications ...