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AR-B1474 User¡¦s Guide
5-1
5. SOLID STATE DISK
The section describes the various type SSDs’ installation steps as follows. This chapter describes the procedure of
the installation. The following topics are covered:
l Overview
l Switch Setting
l Jumper Setting
l ROM Disk Installation
5.1 OVERVIEW
The AR-B1474 provides three 32-pin JEDEC DIP sockets which may be populated with up to 3MB of EPROM or
1.5MB of FLASH or 1.5MB of SRAM disk. It is ideal for diskless system, high reliability and/or high-speed access
applications, controller for industrial or line test instruments, etc.
FLASH disk function allows you to directly program the ROM disk without having to purchase any additional
programming equipment. If small page (less or equal 512 bytes per page) 5V FLASHs were used, you could
format FLASH disk and copy files onto FLASH disk just like using a normal floppy disk. You could use all of the
related DOS command (such as COPY, DEL, …etc.) to update files on the 5V FLASH disk.
The write protect function allows you to prevent your data on small page 5V FLASH or SRAM disk from accidental
deletion or overwrite.
Data retention of SRAM is ensured by an on-board Lithium battery or an external battery pack that could be
connected to the AR-B1474.
5.2 SWITCH SETTING
We will show the locations of the AR-B1474 switch, and the factory-default setting.
CAUTION: The switch setting needs to adjust with the jumpers setting, make sure the jumper settings and the
switch setting are correct.
CN6
JP15
JP1
JP14
JP8
JP9
JP10
U17
U26
H16
JP3
H5
JP7
SW1
J5
P10
P8
P6
JP2
JP6
U13
J4J3
P9
P7
P5
JP11
JP5
JP4
JP13
JP12
J2J1
J6
J7
LED1 LED2
H19H18
H4
J8
U18
U12
U8
CN3
DB2
CN1 CN2
H15
H7
H6
H14
CN5
U20
U27
CN4
1
SIMM1 DB1
U7
BUS1 BUS2
CN6
Figure 5-1 Switch & SSD Type Jumper Location