Bentel Security B3G-220, Installation Manual

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220 Series 21
USB connector functions
The communicator has a USB A connector to enable it to work as a device, to connect it to a PC, or as host, to handle a USB key
(see “Description of jumpers” on page 8).
To connect the communicator to a PC, you need a USB cable with A connectors at each end (hub cable).
The USB interface has the following characteristics.
 Conformity: USB 2.0.
 Full speed data: 12 Mbit/s.
 Max. length of cable: 5 m.
 Max. current in host mode: 500 mA.

Vout in Host mode: 5 V nominal.

USB key file system: FAT32.
USB device
The USB interface will be an alternative to communications with the RS232 port (PC-Link). It will have the same functions as the
RS232 and will be used with the Console to:

update the firmware (level 4 installer only);

upload/download communicator options and audio files (installer only; the normal user can only upload);

upload the communicator's events buffer (installer and normal user only);

check the communicator's status in real time (all users).
USB Host
Allows you to use a USB key for the following operations:
 firmware updates;
 upload/download settings and audio files;
 export the events buffer;
 export the communicator's debug buffer (technical service only).
These functions are available only if the EN50136 option is disabled.