Wincor Nixdorf BEETLE /i8A-3, Руководство пользователя

Страница: 37 / 48

COM6*, COM7*- Interfaces (optional)
The standard system is configured with four COM* interfaces. In addition
expansions are possible via a com board.
Scanners, customer and operator displays without power supply of their own
are connected to these serial interfaces. The interface connection is a 9-pin
D-sub jack. Power (5V or 12V) is supplied via this jack.
Make sure that the connector for the customer display is screwed firmly to
the socket to prevent possible malfunctioning.
NOTE
Expansion cards with electrostatically sensitive devices (ESD) can be
marked with this sticker.
When you handle boards fitted with ESDs (electronical components), you
must observe the following aspects under all circumstances:
n
You must always discharge yourself (e. g. by touching a grounded object)
before working with boards containing ESDs.
n
The equipment and tools you use must be free of static charges.
n
Pull out the power plug before inserting or pulling out boards containing
ESDs.
n
Always hold boards with ESDs by their edges.
Never touch pins or conductors on boards fitted with ESDs.
BEETLE /i8A-3 37