-Load Thermal Printer GPT-4352
During installation:
Always disconnect the power !!
Serial interface:
Interface cable GKA-406, included in sets 1 and 2, is connected to the connector J2. For RS232 versions,
this cable can be directly connected to a PC. A cable with 5 single wires and one open end is available as
an option.
Parallel interface:
The printer GPT-4352-LV-82-SPI-EVAL can be connected to the Centronics interface adapter GPT-4382-
10 using the cable GKA-407.
Infrared interface:
The printer GPT-4352-LV-82-IR-EVAL has an internal IR-tranceiver directly under the red foil window of the
control panel. If the infrared interface adapter GCT-4382-20 is connected using the cable GKA-408, the in-
ternal tranceiver will automatically turn off.
TTL Interface:
On the GPT-4352-LV-82-TTL(4,5V)-EVAL, the RS232 interface driver is not integrated, but the TTL signals of the
UART are directly ground through to J2. This enables the connection of opto isolated interface adapters for
RS232, RS422/485, and TTY.
AA
AAtt
tttt
ttee
eenn
nntt
ttiiiioo
oonn
nn:::: In power down mode, the printer will
sleep after power has been applied.
Connecting the battery charger:
EVAL printers have a standard charging circuit for
4 Ni-MH cells. An operation with 3 or 5 cells is also
possible. The charging is performed by the uncon-
trolled plug-in power supply GNG-6V-0,5A-U that
has a special internal resistance. It is connected
through the cable GKA-416 to the connector J1.
The charging time for a 1200 mA/h battery will be
about 5 hours.During the charging process, the
LED on the control panel will display different pul-
ses that show, whether the fast or trickle charging
mode is active.
Connecting the power supply:
The printer can be supplied with fixed voltage from a power supply or a battery. Battery or power
supply are plugged into the same connector. Through the voltage supply connection, the printer can
be supplied with voltages between 3.5 V (for printers with Centronics adapters with 4.5V) and 7.2 V. The
supply for the logic chip is produced on the board. The power cable GKA-410, included in sets 1 and 3, is con-
nected to the connector J4 ( 3 red wires for + 3.5 -7.2 VDC , 3 black grounding wires, and one white cable for
an NTC 6.8 KOhm of a Ni-MH baterry). For simple power connections, the white wire remains unconnected.
We recommend keeping the length of the line as short as possible. The longer the line, the higher the line resi-
stance, causing bad print quality or even printer failure.
Attention: Avoid confusing the connecttion poles, because it can cause immediate damage to the
printer. Carefully check the power supply connection before you turn on the printer.
Power down: As a standard, the printer is
delivered with the power down mode
turned off.
The power down mode can be activated
by removing the jumper J3 (PWDN). It can also be
carried out externally through J8 with PIN 3 and
PIN4.on the control panel will display different pul-
ses that show, whether the fast or trickle charging
mode is active.
1
3
2
4
5
6
ATTENTION !
Never use a fixed-voltage power supply for charging the batteries. The charging circuit is a "simple -
switch control", meaning that the current limitation is not done in the charge control of the printer, but
in the plug-in power supply.
Please use the suitable GeBE power supply GNG-6.0V-0,5A-U.
2
4
5
6
4
1
3
