Siemens SINUMERIK 840D sl Manuale dell'apparecchiatura - Pagina 27

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Connecting

5.1

The pins of the component interfaces are assigned as specified in the tables below. Any

deviations are indicated at the relevant point.

Signal type:

USB interface

The USB interface is implemented as socket and complies with the generally applicable standard.

The USB interface has the following features:

• Integrated power supply up to 500 mA for each socket.

• Maximum cable length 3 m (Length including the supply cable to the hub and the connected

terminal device; only 1 hub at maximum is permitted. It should be noted that some keyboards

already have a hub.)

• Hot-plugging-capable devices are connected during operation and are identified

automatically.

Note

Correct identification is only guaranteed for USB I/Os that comply to 100% with the USB

specification.

Operator panel front: OP 010S

Equipment Manual, 12/2022, A5E50751046B AA

Input

Output

Bidirectional (inputs/outputs)

Power supply

Input voltage

Output voltage

Ground (reference potential) or N.C. (not connected)

NOTICE

Cables that are too long can cause the screen to freeze

Observe the following restrictions for the USB front interface for connecting operator

panels to the keyboard, mouse or USB FlashDrive:

• Maximum cable length: 1.8 m

• Extension cables are not permissible