MPL MS-MCDISK-D Series Manuale utente

MS-MCDISK-D Rev. B

USER'S MANUAL

High-Tech Made in Switzerland

MEH-10000-005 Rev. B

PCMCIA/JEIDA CARD READER/WRITER WITH SCSI INTERFACE

The MCDISK-D (Memory Card Disk) is a card reader/writer for PCMCIA/JEIDA compatible memory cards. MCDISK-D can

handle a wide variety of cards of any size: SRAM, ROM, OTP, E(E)PROM, FLASH and PC-ATA disks (mechanical/silicon) as

well as user specific I/O cards. To interface those cards to the host equipment MCDISK-D has an SCSI interface. The SCSI

interface is widely used for connecting mass storage devices like hard disks to microcomputers.

MCDISK-D comes in a compact desktop case. One MCDISK-D model offers a double card slot which allows for simultaneous

use of two memory cards. Memory cards and disks up to Type IV (14.2 mm thickness) can be used.

However, although the reader/writer device is economically priced, no concessions have been made in its performance. It

provides a fully professional yet highly economic solution to individual demands for data transfer and storage. This makes the

MCDISK-D ideal for use in many industrial, business and home applications with SCSI data input and/or output.

TECHNICAL FEATURES

• Desktop case with compact dimensions: 158x199x41 mm

• Interfaces PCMCIA/JEIDA Memory Cards to any system

with an SCSI interface

• Double card slot version available

• Separate SCSI ID for dual-slot versions can be configured

• SRAM, ROM, OTP, E(E)PROM, FLASH, I/O card and PC-

ATA disk support

• Card sizes 512 Byte up to 64 MByte (PC-ATA: 4 GByte)

• Memory card types I, II, III and IV are supported

• Supports direct access to entire memory card (raw access)

• Built-in socket- and card services feature transparent ac-

cess to card data for PCMCIA-unaware host systems

• High data security through block check capability

• Local 68HC11 processor

• SCSI interface with 33C93 SCSI controller

• Standard SCSI command set

• Two SCSI-2 connectors allow for SCSI bus chaining

• Switchable active SCSI termination

• UL listed

• FCC Class B compliance

• Low power consumption, typ. 150 mA (no card inserted)

• Needs external power unit, 9VAC/600mA min.

References :

MS-MCDISK-D-1 Rev. B: PCMCIA/JEIDA Reader/Writer, double PCMCIA/JEIDA (type I…IV) card slot

MS-MCDISK-D-2 Rev. B: PCMCIA/JEIDA Reader/Writer, single PCMCIA/JEIDA (type I…IV) card slot

MS-MCDISK-D-3 Rev. B: PCMCIA/JEIDA Reader/Writer, single PCMCIA/JEIDA (type I/II slot) card slot (ON REQUEST)

High-Tech Made in Switzerland

MS-MCDISK-D Rev. B

TABLE OF CONTENTS

INTRODUCTION ................................................................................................................................................................... 3

I. ABOUT THIS MANUAL ........................................................................................................................................... 3

II. SAFETY PRECAUTIONS AND HANDLING........................................................................................................... 3

III. RADIO AND TELEVISION INTERFERENCE........................................................................................................ 3

IV. EQUIPMENT SAFETY .......................................................................................................................................... 3

1. SPECIFICATIONS AND COMPATIBILITY ........................................................................................................................ 4

1.1 SPECIFICATIONS ................................................................................................................................................ 4

1.2 COMPATIBILITY .................................................................................................................................................. 4

1.3. PRODUCTION VERSIONS OF MCDISK-D ........................................................................................................ 4

2. SETTING UP ..................................................................................................................................................................... 5

2.1 SET-UP OVERVIEW ............................................................................................................................................ 5

2.2 REAR PANEL VIEW ............................................................................................................................................. 5

2.3 SCSI ID ................................................................................................................................................................. 5

2.4 DUAL SCSI ID FEATURE (MCDISK-D-1 ONLY) ................................................................................................. 6

2.5 TERMINATION ..................................................................................................................................................... 7

2.5.1 SCSI BUS TERMINATION ..................................................................................................................... 7

2.5.2 TERMINATOR POWER (TERMPWR) ................................................................................................... 7

2.6. PARITY ................................................................................................................................................................ 7

3. SCSI BUS AND POWER CONNECTION .......................................................................................................................... 8

3.1 SCSI BUS CONNECTION .................................................................................................................................... 8

3.2 POWER CONNECTION ....................................................................................................................................... 8

3.2.1 AC POWER UNIT .................................................................................................................................. 8

3.2.2 CONNECTING THE POWER UNIT ....................................................................................................... 9

3.2.3 ELECTRONIC FUSE .............................................................................................................................. 9

4. OPERATION .................................................................................................................................................................... 10

4.1 PCMCIA CARD TYPES ...................................................................................................................................... 10

4.2 CARD POWER CONSUMPTION ....................................................................................................................... 10

4.3 CARD HANDLING .............................................................................................................................................. 11

4.3.1 INSERTING A CARD ........................................................................................................................... 11

4.3.2 EJECTING A CARD ............................................................................................................................. 11

4.4 LED INDICATORS.............................................................................................................................................. 12

4.4.1 BASIC INDICATIONS .......................................................................................................................... 12

4.4.2 ERROR SIGNALLING .......................................................................................................................... 12

4.5 DRIVER SOFTWARE ......................................................................................................................................... 13

4.6 BATTERY REPLACEMENT ............................................................................................................................... 13

5. PHYSICAL DIMENSIONS ............................................................................................................................................... 13

DISCLAIMER ....................................................................................................................................................................... 16

High-Tech Made in Switzerland

MS-MCDISK-D Rev. B

INTRODUCTION

I. ABOUT THIS MANUAL

This manual assists the installation procedure by providing all

the information necessary to handle and configure the

MCDISK-D reader/writer as well as connect it to a host

system.

The MCDISK-D reader/writer is designed to work with most

host systems which are fitted with an SCSI interface. It is a

simple procedure to set up the unit, nevertheless, before

attempting any installation, please read through all applicable

sections of this manual and follow the instructions herein.

For those involved in writing drivers or special applications

that directly interface to the MCDISK-D, a Technical Refer-

ence Manual provides information required to drive the

MCDISK-D on the SCSI command level. Related closely to

this product are three more publications that supply informa-

tion about PCMCIA and SCSI interface as well as application

and card usage with the MCDISK.

• MCDISK Technical Reference Manual (supplied by MPL

AG or your local MCDISK supplier)

• MCDISK Application Note (supplied by MPL AG or your

local MCDISK supplier)

• PCMCIA PC Card Standard (July 1993, Release 2.1)

• ANSI SCSI-2 Standard (X3.131-199x, Revision 10h)

II. SAFETY PRECAUTIONS AND HANDLING

For personal safety and safe operation of the MCDISK-D,

follow all safety procedures described here and in other

sections of the manual.

WARNING: Electrical equipment may be hazard-

ous if misused.

• Handle the unit carefully, i.e. dropping or mishandling the

read/write unit can cause damage to internal assemblies.

• Keep the unit away from all sources of liquids, such as

coffee cups, drinking glasses, washing facilities etc.

• Do not expose the unit to moisture (damp, wet weather

etc.).

• For the purpose of heat dissipation, allow adequate venti-

lation to the unit by not covering it with paper or other

material.

• Use the unit always in the temperature range from

5 °C…40°C.

• Use only a power supply as defined in section 3.2.1.

• Keep this manual available for reference.

WARNING: There are no user-serviceable compo-

nents inside the MCDISK-D!

For your protection and that of your MCDISK-D disconnect the

power input immediately if any of the following conditions

exists:

• Something has been spilt onto the case.

• The unit has been damaged in any way, e.g. through

dropping.

• The unit has been exposed to excess moisture or rain.

• You suspect that the unit requires servicing or repair.

• The power input cable has been damaged.

WARNING: To disconnect power, pull the power

connector from the back of the unit (ensure that you

pull the connector, not the cord!). For this reason,

always ensure that the power input connector is

easily accessible!

III. RADIO AND TELEVISION INTERFERENCE

This equipment has been tested and found to comply with the

limits for a Class B digital device, pursuant to Part 15 of the

FCC rules. These limits are designed to provide reasonable

protection against harmful interference in a residential instal-

lation. This equipment generates, uses and can radiate radio

frequency energy and, if not installed and used in accordance

with the instructions, may cause harmful interference to radio

communications.However, there isnoguarantee that interfer-

ence will not occur in a particular installation. If this equipment

does cause harmful interference to radio or television recep-

tion, which can be determined by turning the equipment off

andon, the user isencouragedtotry to correct theinterference

by one or more of the following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and re-

ceiver.

• Connect the equipment into an outlet on a circuit different

from that which the receiver is connected.

• Consult the dealer or an experienced radio/TV technician

for help.

Shielded cables and I/O cords must be used for this equip-

ment to comply with the relevant FCC regulations.

Changes or modifications not expressly approved in writing by

MPL AG may void the user's authority to operate this equip-

ment.

IV. EQUIPMENT SAFETY

Great care is taken by MPL that all it's products are thoroughly

and rigorously tested before leaving the factory to ensure that

they are fully operational and conform to specification. How-

ever, no matter how reliable a product, there is always the

remote possibility that a defect may occur. The occurrence of

a defect on this device may, under certain conditions, cause

a defect to occur in adjoining and/or connected equipment. It

is the users responsibility to ensure that adequate protection

for such equipment is incorporated when installing this device.

MPL accepts no responsibility whatsoever for such kind of

defects, however caused.

High-Tech Made in Switzerland

MS-MCDISK-D Rev. B

1. SPECIFICATIONS AND COMPATIBILITY

This chapter summarises the unit specifications, provides a

reference regarding compatibility to host systems and a table

of the various MCDISK-D models.

1.1 SPECIFICATIONS

Three MCDISK-D models are available (see table 1.3), iden-

tified by an extension: D-1, D-2 or D-3. In the table below,

model differences are indicated by this extension in parenthe-

sis.

Performance:

Transfer rate 2.5 MByte/sec

Average throughput

with SRAM card 0.9 MByte/sec

Latency 0 ms

Interfaces:

SCSI standard SCSI-2

SCSI bus connectors High density 50-pin/female

SCSI bus configuration 8-bit/single-ended

PCMCIA standard Release 2.1

PCMCIA card slots 2 (D-1)

1 (D-2, D-3)

PCMCIA card types Type I - IV (D-1, D-2)

Type I / II (D-3)

Power Requirements (without card):

9 VAC (+/- 5%) 150 mA

Requires external power unit , see section 3.2

Memory Card Current Consumption:

One card 450mA max.

Total two cards 700mA max.

Total peak 800mA, 1.5sec

Operating Environment:

Temperature 5°C ... 40°C

Relative humidity

(non-condensing) 10% ... 90%

Physical:

Height 41 mm (1.6")

Width 158 mm (6.2")

Length 199 mm (7.85")

Weight 0.60 kg (1.32 lbs)

1.2 COMPATIBILITY

MCDISK-D operates with various system platforms using

standard driver software. Some host systems do not fully

support MCDISK-D and require special driver software. MPL

AG provides a "MCDISK Application Note" where two major

subjects are reflected:

•The actual status of software and hardware support for

different host systems, including a description of the cat-

egories of use (file system, binary image transfer, SCSI

level access).

•A list of MCDISK-compatible PCMCIA cards and ATA-

disks, tested by MPL AG or MCDISK users.

1.3. PRODUCTION VERSIONS OF MCDISK-D

MCDISK- D-1 D-2 D-32

SCSI-2

connectors 2 2 2

PCMCIA

connectors 2 1 1

Read SRAM SRAM SRAM

ROM ROM ROM

FLASH FLASH FLASH

EEPROM EEPROM EEPROM

OTP OTP OTP

ATA-Disks ATA-Disks

Write SRAM SRAM SRAM

FLASH FLASH EEPROM1

EEPROM1EEPROM1

OTP1OTP1

ATA-Disks ATA-Disks

I/O access yes yes yes

Card types I, II, III, IV I, II, III, IV I, II

Table 1.3: MCDISK-D models

1Depends on card used

2This model is on request only. No support for +12V FLASH

cards

High-Tech Made in Switzerland

MS-MCDISK-D Rev. B

2.2 REAR PANEL VIEW

SCSI ID switch (push wheel), termination/parity switch, SCSI

connectors and AC power plug are located on the rear panel

of MCDISK-D (all models). Part descriptions in this and the

next chapter relate to these rear panel items.

Fig. 2.2: Rear panel MCDISK-D

2.3 SCSI ID

Each device on the SCSI bus must have a unique SCSI ID

number. The numbers range from 0 .. 7 which allows for a

maximum of eight SCSI devices on the bus. Before setting the

SCSI ID for MCDISK-D, an ID must be chosen that is not yet

used by other SCSI devices. Most host computer systems

already use SCSI ID 0 for the internal SCSI hard disk drive. In

principle, SCSI ID 7 is used by the host computer itself. Check

the documentation of the host computer and the attached

peripheral SCSI devices to verify the available SCSI ID

numbers.

On the MCDISK-D, the desired SCSI ID number can be

adjusted by simply pressing the push wheels +/-buttons. SCSI

ID 7 cannot be selected (host computer's own ID).

WARNING: Ensure that each SCSI device has a

unique SCSI ID number. If not, serious corruption of

data and/or failure of the host computer may result!

2. SETTING UP

This chapter (and the next one) provides all the information

required to configure the MCDISK-D reader/writer. It de-

scribes the setting of the SCSI ID, the SCSI termination

characteristics and the connection of the SCSI bus cable and

the AC power unit.

If you have any doubts on configuration, contact your

MCDISK-D supplier or an authorised dealer of your host

computer.

WARNING: Before you commence, review and

observe the safety precautions described at the

beginning of this manual to avoid personal injury or

damage to equipment.

2.1 SET-UP OVERVIEW

Set-up of MCDISK-D is a step by step procedure:

1. Remove the MCDISK-D from its cover.

2. Set the unit’s SCSI ID.

3. Terminate the SCSI bus if required. Match the SCSI parity

configuration.

4. Connect the SCSI bus cable to the unit (see chapter 3)

5. Connect the external AC power unit (see chapter 3).

6. Before starting to work with MCDISK-D, make sure that

adequate ventilation to the unit is guaranteed.

SCSI ID

Pushwheel

Config. Switches:

ParityTermination

AC power plug

SCSI-2 High Density Connectors

High-Tech Made in Switzerland

MS-MCDISK-D Rev. B

2.4 DUAL SCSI ID FEATURE (MCDISK-D-1 ONLY)

The Dual SCSI ID feature allows to use a separate SCSI ID for

each slot on the double-slot MCDISK-D-1. This allows stand-

ard driver software (without SCSI LUN support) to be used to

access both slots. In Dual SCSI ID mode, the MCDISK-D-1

appears like two separate SCSI devices on the bus, and can

thus be handled by the host drivers as if two single-slot

MCDISKs were connected.

The Dual SCSI ID feature is disabled by default and can only

be enabled for units with firmware version V3.3 or newer. To

enable this feature, an internal jumper must be set as follows:

1. Make sure you have firmware V3.3 in your MCDISK unit. If

not, DO NOT TRY to set the jumper. Dual SCSI ID feature

will not work!

2. Use a suitable screwdriver to gently slide the four gray

plastic tabs on the top cover of the MCDISK-D-1 case

outwards.

3. Use a suitable Philips screwdriver to open the four screws.

4. Remove the top half of the MCDISK case gently. Be careful

to lift only the case, and leave the front and rear metal panel

inserted in the bottom half of the case.

5. Insert (or remove, if you want to disable the Dual SCSI ID

feature) a jumper at the position indicated by Figure 2.4

6. Make sure that you have set the right jumper.

7. Replace the top half of the case. Note that it only fits

correctly one way around.

8. Replace the screws

9. Slide the gray plastic cover tabs back until they snap in

place.

With the Dual SCSI ID feature enabled, the MCDISK-D-1 uses

two SCSI IDs on the bus: To access the lower slot, the SCSI

ID configured as described in paragraph 2.3 is used. To

access the upper slot, a second SCSI ID which is one number

higher than the SCSI ID configured is available.

The Dual SCSI ID feature is disabled when the SCSI ID is set

to 6.

For example:

•If the SCSI ID is configured as 3 and Dual SCSI ID feature

is enabled, the MCDISK-D-1 appears under SCSI ID 3 and

4 on the bus.

•If the SCSI ID is configured as 6, even if Dual SCSI ID

feature is enabled, the MCDISK-D-1 appears only under

SCSI ID 6 (as SCSI ID 7 is reserved for the host computer).

This can be used to disable the Dual SCSI ID feature

without opening the case again.

Note: The Dual SCSI ID feature works only if SCSI timeout

are strictly held as defined in the SCSI-II standard.

Some host adaptors have features like “Fast SCSI

scan”that violate the SCSI timeout periods, because

this is not relevant for many SCSI devices (including

the MCDISK with Dual SCSI ID feature disabled). If

you have SCSI problems, try disabling those “Fast

SCSI scan”features.

Note: Please refer to the MCDISK TECHNICAL REFER-

ENCE MANUAL for details about the Dual SCSI ID

feature.

J21 Pin 1-6 enables the Dual SCSI Feature

Fig. 2.4.: Dual SCSI Feature jumper J21

High-Tech Made in Switzerland

MS-MCDISK-D Rev. B

MCDISK

(not terminated)

Host computer

Internal SCSI device

(terminated)

External SCSI device

(terminated)

External SCSI device

(not terminated)

2.5 TERMINATION

2.5.1 SCSI BUS TERMINATION

Both ends of the SCSI bus cable must be terminated. Gener-

ally, one end is already terminated at the host computer. The

other end must be terminated by the last SCSI device on the

SCSI bus.

WARNING: Ensure that no more than two devices

on the SCSI bus are terminated. Otherwise serious

corruption of data and/or damage to the SCSI bus

devices may result!

When the MCDISK-D is the last device on the SCSI bus, it

must be terminated by setting the termination configuration

switch to the ON position (Switch No. 2). In all other cases, this

switch must be set to the OFF position!

The figure below shows an SCSI chain configuration where

the MCDISK-D is in a middle position (and therefore not

terminated).

Fig. 2.5.1: SCSI bus configuration

2.5.2 TERMINATOR POWER (TERMPWR)

Generally, the host computer is the only device on the SCSI

bus required to provide TERMPWR for the bus. Since the

MCDISK-D is a peripheral SCSI device, power for the termi-

nator networks must be supplied from the SCSI bus cable

(TERMPWR line).

The MCDISK-D contains internal components to provide

switchable Active Termination of the SCSI bus. Compared to

Passive Termination, Active Termination is far less sensitive

to TERMPWR voltage variations, which, amongst other

things, increases data security.

Figure 2.5.2 shows the terminator circuit as used on the

MCDISK-D:

Fig. 2.5.2: Active termination

Voltage

regulator

2.85V Output

110Ω

18 SCSI - bus lines

TERMPWR

4.00 É5.5 V Termination

power switch

2.6. PARITY

The SCSI parity configuration of the MCDISK-D should match

that of the host computer. Check the host computer documen-

tation to verify its setting. On delivery, the MCDISK-D’s parity

is disabled (Switch No. 1 to OFF) which should be correct for

most system integrations. The parity can be enabled by

setting the parity configuration switch to the ON position.

High-Tech Made in Switzerland

MS-MCDISK-D Rev. B

3. SCSI BUS AND POWER CONNECTION

This paragraph provides directions for connecting the SCSI

bus cable and the power unit to the MCDISK-D.

WARNING: Before you begin, review and observe

the safety precautions described at the beginning of

this manual to avoid personal injury or damage to

equipment.

3.1 SCSI BUS CONNECTION

Two SCSI bus connectors are located at the rear of the unit.

Inside the MCDISK-D, the connectors are pin-for-pin con-

nected together and therefore allow for a simple SCSI bus

chaining.

The connectors are of the “high-density”type as described in

the SCSI-2 standard. Therefore, the MCDISK-D accepts

cables only where one cable end has a connector of the

following type: D-Sub high-density, 50-pin male (also called

DB50M mini).

Generally, the cable is not included with the MCDISK-D as the

connector at the other end of the cable is fully dependant on

the type of connector fitted on your host system or nearest

peripheral in the SCSI chain. The most commonly used

connectors for connecting to the host system are:

•Centronics 50-pin male, standard (various SCSI hosts/

peripherals)

•Centronics 50-pin male, high-density / mini (newer SCSI

hosts/peripherals)

•D-Sub 50-pin male, high-density / mini (like MCDISK-D)

•D-Sub 25-pin male, standard (all Macintosh models)

To obtain the right cable for your needs, contact your local

MCDISK dealer or an authorised dealer of your host compu-

ter.

When connecting the SCSI bus cable(s) to the MCDISK-D,

carefully align the connectors to avoid bending or damaging

the connector pins.

WARNING: The total SCSI cable length must not

exceed 6 meters (20 feet). Shielded cables and I/O

cords must be used for this equipment to comply

with the relevant FCC regulations.

3.2 POWER CONNECTION

3.2.1 AC POWER UNIT

The MCDISK-D requires an external direct plug-in AC trans-

former unit.

The input rating of this unit must correspond to the rating of

your local mains supply (e.g. 120VAC/60 Hz for USA;

230VAC/50 Hz for Europe).

The output rating of the power unit is defined by the input rating

of the MCDISK-D and must be 9VAC / 1000mA (minimum

600mA). In each case, the power unit output must be specified

to be within 9VAC ±5% at 600mA.

NOTE: This product is intended to be supplied by a

Listed Direct Plug-In Transformer Unit marked

"Class2" with output rated9V AC, minimum600 mA.

WARNING:Only a power unit with the above speci-

fications must be used. The use of any other type of

power unit may seriously damage your MCDISK!

The use of an incorrect power unit with your

MCDISK will render the warranty void!

The physical dimensions of the power connector needed for

the MCDISK-D are shown below.

Fig. 3.2.1: Physical dimensions of the power connector

The power unit is not included with the MCDISK-D due to the

wide variety of power supply ratings and AC mains connector

pin types. A power unit can be obtained from your local

MCDISK supplier or a local electronics distribution outlet.

5.5mm

2.1mm

9.5É12mm

max.

9.5mm

High-Tech Made in Switzerland

MS-MCDISK-D Rev. B

3.2.2 CONNECTING THE POWER UNIT

Connect the input side of your direct plug-in transformer unit

to an AC outlet. Since there is no power switch on any models

of the MCDISK-D, power is applied by inserting the power

connector of the AC power unit (output side) into the AC power

plug on the rear of the MCDISK-D.

The green LED on the front panel will light indicating that

power is applied to the MCDISK-D. The red LED will also light

indicating that there is no PCMCIA card inserted in the unit.

If the unit fails to switch on (i.e. the green LED doesn’t light)

then immediately remove the power cord! The cause could be

an internal malfunction. Refer to the next section.

3.2.3 ELECTRONIC FUSE

The MCDISK-D is protected by an electronic fuse. The fuse

protects the MCDISK-D in case of malfunction by disconnect-

ing the power input from the internal circuit. If this happens, the

green power LED will go off and will stay off as long as the fault

condition is present.

If you suspect that the fuse has opened, unplug the power

cord. Once the power source is disconnected the fuse will

connect the power input to the internal circuit again (electronic

fuse!). Wait for one minute. Then plug in the power cord again

while watching for the green power LED. If the LED just blinks

once or does not light at all, immediately unplug the power

cord and check through the procedures in the “Setting Up”

section.

If, after repeating these procedures the MCDISK-D still fails to

operate then remove the power cord and contact your local

MCDISK supplier.

The fuse does NOT need to be replaced following operation.

WARNING: There are no user serviceable parts

inside the MCDISK-D!

High-Tech Made in Switzerland

MS-MCDISK-D Rev. B

4. OPERATION

This chapter provides information about the use of the

PCMCIA cards and the LED indicators.

The illustration below identifies the items visible on the front

panel of the three MCDISK-D models (D-1, D-2 and D-3).

Fig. 4.1 Front panel of MCDISK-D-1

Fig. 4.2 Front panel of MCDISK-D-2

Fig. 4.3 Front panel of MCDISK-D-3

4.1 PCMCIA CARD TYPES

The MCDISK-D models have been designed to accept up to

four different PCMCIA card types:

•Type I: Thickness 3.3 mm, no raised substrate area

•Type II: Thickness 5.0 mm, 48 mm wide raised substrate

area

•Type III: Thickness 10.5 mm, 51 mm wide raised

substrate area

•Type IV: Thickness 14.2 mm, 51 mm wide raised

substrate area

Dependant on the MCDISK-D model, the usable card types

are:

MCDISK-D-1:

The lower card slot accepts all four types of cards. Due to the

front panel cut-out, the upper card slot only accepts type I - III

cards.

Type I and II cards in the lower and type I - III cards in the upper

slot can be inserted simultaneously. Type IV cards must be

inserted in the lower slot, fully occupying the space of both

slots.

MCDISK-D-2:

This single slot model accepts type I - IV cards.

MCDISK-D-3:

Only type I and II cards can be used.

4.2 CARD POWER CONSUMPTION

For heat dissipation purpose the PCMCIA card current con-

sumption has to be considered.

The current consumption of a single card must never exceed

450mA. This corresponds to a maximum power consumption

of 2.25 W with 5V technology cards.

If two cards are used simultaneously, then the total current

consumption must never exceed 700mA (e.g. 450mA for the

first card, 250mA for the second card).

The total peak current must not exceed 800mA for a maximum

period of 1.5sec, independent of one or two cards being used.

When providing power for the

WARNING: Never exceed the current ratings indi-

cated above. If exceeded, serious damage and/or

failure of the MCDISK-D may result! Note also the

specifications of your AC direct plug-in transformer

unit.

Power Status InUse

CDISK

Power Status InUse

CDISK

Power Status InUse

CDISK

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