Portable Power Module for Güralp Certimus
Operation
4.1.4 Using a diagnostic cable (not supplied)
The PPM has an RS232 serial console which is available via pins on the Charge Input
connector. To access it, a diagnostic cable can be constructed. This cable should
connect the RS232 pins on the Charge Input connector (see section 6.2.1 on page 21)
to the appropriate pins of the serial port of a PC or laptop running terminal
emulation software such as PuTTY or Minicom. Configure the emulator for a line-
speed of 115,200 Baud.
Once connected, enter the command
bat ship 1
If the diagnostic cable is designed to also provide power, the PPM will continue to
function until the charge input voltage drops below 1 Volt.
4.2
Working with solar panels
4.2.1 Connections and polarities
Warning:
Never connect or disconnect either end of the charge cable
while the solar panel is illuminated. When making or breaking DC
circuits, an electrical arc may form which can tarnish or damage contact
materials, resulting in increased resistance. This can then cause a risk of
over-heating, leading to connector damage and, potentially, fire.
The industry standard connector for Solar Panels is the MC4, a single-pole, IP67
weather-proof (when assembled correctly with appropriate cables) connector which
is available in two mating forms.
9
Issue A - May 2021
