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Rear Panel Switches
The six-position rear panel switch is shown in the following figure.
FRAME
MODE
MAIN
AUX
ADDRESS
A4 .... AO
Figure 2-3. Rear Panel Switches
Address Switches
Address switches AO through A4 set the primary GPIB address. The address is set in binary, AO being the least significant
bit and A4 being the most significant bit. Figure 2-3 shows the factory-set address of''5" {binary 00101). Any address from
decimal 0 to decimal 30 is a valid GPIB address. Refer to the following diagram for switch settings.
Frame Mode Switch
The frame mode switch determines the IEEE 488 secondary addresses (also referred to as subaddresse-s) of the modules that
are installed in the mainframe. The frame mode switch must be set to MAIN when the mainframe is connected directly to
the GPIB, With the frame mode switch set to MAIN, modules are assigned secondary addresses of 0 to 7, which
corre.sponds to the slot locations indicated on the mainframe.
1
he frame mode switch must be set to AUX (auxiliary) when the mainframe is serially-linked to another mainframe that is
directly connected to the GPIB. This ahso applies when the mainframe is serially linked to an Agilent
602xA/664xA/665xAJ
667xA power supply that is directly connected to the GPIB.
In mainframes that have the frame mode switch set to AUX, modules are assigned secondary addresses of 8 to 15.
Secondary address 8 corresponds to slot location 0 on the mainframe and secondary address 15 corresponds to slot location
7 on the mainframe as shown in the following diagram.
16
Installation
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