18 PRODIGIT
2-9 Connection to the load Input Terminal on the Rear Panel
Connection procedure of the load input terminal on the rear panel
2.9.1. Turn off POWER switch.
2.9.2. Check that the output of the equipment under test is off.
2.9.3. Connect the load wire to the load input terminal on the rear panel.
2.9.4. Check the polarity of the connection and connect the load wire to the output
Terminal of the equipment under test.
Note: Avoid equipment damaged, don’t input the DC voltage standard output to the DC
Load input terminal, if calibration voltage meter required, please input the DC voltage
standard to the Vsense input.
2-10 GPIB & RS232 connection option
2.10.1. GPIB + RS232 connector is on the rear panel of 3270 Series Mainframe for
application GPIB or RS232 .
2.10.2. GPIB and RS232 interface can only be used at the same time, to Change the
interface must reboot unit.
2.10.3. GPIB connection with three important limitations as Described below:
2.10.3.1 The maximum number of devices including the controller is no More
than 15.
2.10.3.2 The maximum length of all cable is no more than 2 meters times The
Number of devices connected together, up to 20 meters Maximum.
2.10.3.3 RS232 Female Block connections on the back panel, the Connecting
Device and the computer RS232 port to one-way Connection.
(Note: Not 2-wire connection, the detail as 4-2).
2.10.4. Fig 2-2 shows the RS232 connector (Female) on the rear panel Connects 3270
Series Mainframe to RS232 port of computer in one By one Configuration .The
RS232 BAUD-RATE can be set in the front Panel, it Will be lit the GPIB Address
when press the “SYSTEM” button. Press it again, it will be lit the BAUD-RATE.
Fig 2-3 3270 Series GPIB & RS232 Connection
2-11 RS232 Connection option
Fig 2-3 shows the RS232 connector (Female) on the rear panel connects 3270 Series
mainframe to RS232 port of computer in one by one configuration .The RS232 BAUD-
RATE can be set in the front panel, it will be lit the GPIB address when press the
“SYSTEM” button. Press it again, it will be lit the BAUD-RATE.
Fig 2-4 3270 Series RS232 Rear panel
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