P 190
10
2.3 CONNECTIONS
Power supply
With regard to power supply, the P 190 printer has a standard AMPMODU1 4-pin male (J3) type connector.
The power supply connector pins are marked as follows:
1 GND
2 GND
3 +VT: 5 Vcc ± 15% (printer needle power supply)
4 +VCC: 5 Vcc ± 7% (logic card power supply)
Connecting with the power supply connector (J5) can be avoided by using the flat 20-pin connector (J1)
of the logic or by replacing the latter, by special request at the order stage, with a similar 26-pin one,
thus connecting the power supply and the printer signals with a single cable. In this case, however, the
maximum length of the flat cable must not exceed 30 cm for the 20-pin version and 70 cm for the 26-pin
version. The reason for this is that current running along inside narrow wires can lead to power failures
which could interfere with the correct functioning of the printer.
If the printer has the RS232 or CENTRONICS options, it must be supplied by means of the J5 connector.
For the pin pattern required for supplying power through the logic flat cable, please refer to the following
paragraph.
LOGIC
In the J1 20-pin connector, the signals are arranged as follows:
1 +VT 2 +VT
3 +VCC 4 +VCC
5 GND 6 GND
7 TD 8 D6
9 D5 10 D4
11 D3 12 D2
13 D1 14 D0
15 D7 * 16 RESET
17 S-EN 18 READY/RTS
19 FEED 20 STB/RD
INSTALLATION and USE
TO PRINTING MECHANISM
POWER SUPPLY
CONNECTO
EXTERNAL REWINDER
CONNECTO
TO PRINT KEY
TO FEED KE
SELECTION JUMPER
SETTING THROUGH
JUMPER FOR ENABLING
FRONT KEYS
CONNECTO
USER
EXTERNAL PRINT
KEY CONNECTOR
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