| Which connections do
I need on the serial cable?
serial cable standard pinning
2 <--> 3 4 <--> 5 6 <--> 20 20 <--> 6 3 <--> 2 5 <--> 4 7 <--> 7
see design
manual page 8-5 Which data format do I have to set for the
serial port?
DATA-FORMAT: Baudrate, 8-Databit, 1-Stopbit, no
parity
115200 Baud are preselected on all MEMO units with serial interface.
see design manual page 8-4 Is it possible to store
data direct on the Drive Min?
It isnīt possible to store the
data without using a protocol on the serial DRIVE MIN. We designed a special solution
for such applications - it consists of the serial DATALOGGER Interface in combination
with our MEMO DRIVE PAR. All data, coming over the serial port is stored on the
inserted MEMO CARD without a protocol automatically.
see datasheet "serial
DATALOGGER INTERFACE" I want to use a 9-pin Sub D connector
with the Drive Min?
Drive-Connector cable PC-connetor-sub-D-9-pol
CTS(8) ------- RTS(7)
DTR(10) --+--- CTS(8)
+--- DSR(6)
TXD(16) ------- RXD(2)
RXD(18) ------- TXD(3)
GND(1) --+----
GND(5)
GND(4) --+
GND(12) --+
Gnd(24) --+---- GND power-supply
VCC(6) ----+-- 5V/400mA power-supply
VCC(22) ----+
see datasheet
"MEMO DRIVEs" and manual (page (2-9) Which lines do
I need for correct Drive Min operation?
Communicating without
handshakelines is not specified. On the Drive MIN dtr(PIN 10) is the outgoing
handshake. If you are sending bytes while dtr stops the communication, an communication
error occurs. Cts is the incoming handshake. Itīs up to you using the cts. If
you donīt use cts you must connect it to a +12V RS232 level. We have another type
of drive: drive B PAR S. Combined with our interface MAX RS232 you can build a
very flexible "drive min". Because of the internal RAM-Buffer on the interface
MAX RS232 the handshakelines won't be busy. So it is possible to use this interface
without the handshakelines.
see manual (serial buffered interface) (8-15).
I want to use a 9-pin Sub D connector with the Drive
Min?
Drive-Connector cable PC-connetor-sub-D-9-pol
CTS(8)
------- RTS(7)
DTR(10) --+--- CTS(8)
+--- DSR(6)
TXD(16) ------- RXD(2)
RXD(18) ------- TXD(3)
GND(1) --+----
GND(5)
GND(4) --+
GND(12) --+
Gnd(24) --+---- GND power-supply
VCC(6) ----+-- 5V/400mA power-supply
VCC(22) ----+
see datasheet
"MEMO DRIVEs" and manual (page (2-9) How can I mount
the MEMO DRIVE with this silly frame in the front plate of my 19" rack?
Use the additinal front plate, available under order nbr. 010728
see datasheet "MEMO DRIVEs" page (4) MEMO CARDs are
waterproofed but what shall I do with the MEMO DRIVE in my outdoor equipment?
Use the additinal AQUA FRAME which is available for DRIVE MIN under order
nbr. 010720
see datasheet "MEMO DRIVEs" page (4) How
long is the write time for MEMO CARDs?
The answere to this question
is not a simple term. The write time depends on the internal memories, the speed
of the terminal system, if you use the buffer RAM or the direct write mode, ...
Details are specified in the manual on page 2-2 and 2-3but a figure out of the
pactice: 4 seconds for 32 KBytes ! How is the structure
of the memory range?
MEMO CARDs give you a fully available memory
without segments or sectors or other limitations. The only exemption is the erase
mode on FLASH memories - there is a page segmentation within the erase cycle has
to be performed !
see design manual page 7-22 I
want to run a data storage system with battery power, how big is the energy consumption
of a MEMO CARD?
The MEMO CARD itselve has no power consumption
at all. It is supplied with energy by the MEMO DRIVE when it is inserted fully
and only when a card operation is executed! So the DRIVE needs max 450mA/5V for
the time of card operations. You can run this system with three C-size batteries
and read or write about 80 pcs. of 1MB MEMO CARDs!
see design manual
page 3-2 | 
