User manual

REI2
User manual
Doc: R2U_2_1079_002_E
Version: 1.07.9
Page
53 of 64
point in the procedure), connect the start line with all the GREEN banana jacks and give a
common START.
Note: LinkGate Encoder automatically synchronizes itself to the time 00:00:00.000; it is not
possible to set other times.
3.10. Downloading data onto REI2
LinkGate Encoder memorises the last 256 events and the last 256 speeds (if acquired) on an
internal permanent memory and so makes possible retrieval after an interval of time of any
impulses lost as a result of radio malfunction or for any other reason. To be able to transfer the
contents of LinkGate Encoder’s memory onto the REI2 stopwatch, it is necessary to use the
dedicated cable (CAB9), which should be connected to LinkGate Encoder’s 5 pole connector at
one end, and at the other to the ‘Computer B’ 5 pole connector (Fig. 15) on REI2. Once the
correct menu has been selected on REI2’s stopwatch (see manuals for the individual programs),
you can proceed with data downloading by pressing the 2ND key and then by pressing and
releasing the ‘MODEM’ (SERIAL) key. The start of downloading is signaled by the two tones
BOOP-BEEP; then within 2 seconds two counters will appear on REI2’s display to indicate the
number of times and speeds actually downloaded. At the end of data downloading, the two tones
BEEP-BOOP indicate that the procedure has terminated correctly.
Attention: if you download data immediately after performing a memory RESET (2ND +
REPEAT (RESET)) and without transmitting any impulses, LinkGate Encoder will download
the entire contents of the memory (256 times + 256 speeds).
IMPORTANT: During data downloading onto REI2, disconnect the LinkGate Decoder
from the stopwatch. Also disconnect the data download cable during timing via radio.
3.11. Modem function
LinkGate Encoder can also be used as a modem transmitter. Contrary to what happens when
transmission is generated during an event, however, the signal at the input does not take the form
of sets of data with error correction codes, but is simply transformed into a signal compatible for
radio transmission. Data reliability is left entirely to the efficiency of the radio system.
In this function mode, LinkGate Encoder accepts as input a Serial signal with a maximum speed
of 1200 Baud and generates a FSK modulation between 1200 Hz (logic signal 0) and 1800 Hz
(logic signal 1).
The digital input signal (level RS 232, RS 485 or TTL) is connected to the blue banana jack and
the black banana jack.
The MODEM function can be activated by pressing the ‘MODEM’ key 3 times consecutively
and rhythmically. At the first two presses, you will hear a BEEP tone. At the third, the tones
BOOP-BEEP will signal entrance into MODEM function. If the key is not pressed with the
correct rhythm, the system will refuse to enter this mode. The reason for this complicated
procedure for activating this function is that the MODEM function quickly uses up the battery.
In this way you can avoid the danger of rapidly running down the battery by accidentally
touching the MODEM key.
To terminate the transmission session you need only press the MODEM key once. The system
will emit the tones BEEP-BOOP to signal correct termination of the procedure.