6243/44 DC Voltage Current Source/Monitor Operation Manual
5.2.2 GPIB Setup
5-5
The precautions for the GPIB interface connection are as follows:
•
The total length of the GPIB cables used in one bus system must not exceed 20 meters and must
not be longer than 2 m
the number of the connected devices. The GPIB controller itself is also
counted as one device.
•
The maximum number of devices that can be connected on one bus is 15.
•
No restrictions are applied for cable connections. However, do not connect 4 or more GPIB con-
nectors on one device. Putting 4 or more connectors on one device will exercise a force upon the
mounting section of the connector that could damage the section.
Example:
The total cable length that can be used in a system made up of 5 devices is 10 meters or
less. (5 devices
2 m/device = 10 m)
Within the range in which the total cable length does not exceed the allowable length, the
cables can be arranged freely. However, when connecting 10 or more devices, cables
shorter than 2 meters must be used for some devices because the total cable length must
not exceed 20 meters.
•
Connection and removal of GPIB cables must be performed with the power turned OFF, and with
the chassis commonly grounded for all the devices connected and to be connected.
•
If an ATN request interruption occurs during transfer of messages between devices, the ATN will
have priority. The previous conditions are cleared.
•
When using the system in the talk-only mode, do not connect the controller.
•
Retain the REN line at LOW for 5 ms or longer following the transmission of program codes.
GPIB connector
