B&K Precision 866C Uživatelský manuál stáhnout pdf (Strana 44)

Remote operation

Communication cables

The DC Load has a DB9 connector on the rear panel that allows remote communication.

WARNING

Do not connect the DC Load's DB9 connector to a standard RS-232

instrument. Doing so may damage the instrument, as the instrument

requires TTL logic signals, not standard RS-232 voltages.

Two adapters are available to perform the correct level shifting.

RS232 to TTL serial converter cable IT-131 (standard)

Connect the INSTRUMENT side of the adapter to the DC load DB9 connector. Connect the

COMPUTER end to an RS-232 port on your computer.

PC Load

IT-E131 communication

cable

COMPUTER

INSTRUMENT

IT-E131 ISOLATED

COMMUNICATION CABLE

TTL(5V)RS232 ISOLATION

859666668889942311

The LEDs in the adapter will blink when information is sent through the adapter. This is a good way

to tell if your communication link is active.

USB to TTL serial converter cable IT-132 (option)

The IT-E132 adapter allows you to talk to the DC load via your Windows

computer's USB interface.

To use this interface, you must install the software driver that came with the IT-E132 adapter.

To install the driver, run the PL-2303 Driver Installer.exe file that comes on the CD. This will install

the driver . After installation, right click on My Computer and select Manage. Click on Device

Manager in the left-hand pane, then click on Ports in the right hand pane. You should see an entry

named Prolific USB-to-Serial Comm Port.

Once the driver software is installed on your system, it will appear as if you have a new COM port.

8500 DC Load Series Version: November 4, 2008 Page 44 of 76

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B&K Precision 866C Uživatelský manuál Strana 44