AMETEK MX Series Installation Manual - Manual (Page 30)

Installation Manual - Rev D California Instruments
MX Series 26
2.8 Multiple Cabinet System Configurations
Multi-cabinet MX models consist of two or three autonomous or Auxiliary MX45-3Pi units.
Auxiliary units do not have their own controller and are identified easily by their blank front panel
(except for status indicator LEDs). Master units each have their own controller but can be
configured as auxiliary units by disconnecting the ribbon cable marked J17 between the controller
and the system interface board (P/N 7003-700-1). This disables the controller and allows the
MX45 to operate as an Auxiliary unit. (Requires removal of the top cover)
When used as a multi-cabinet system for higher power applications, the controllers in the unit(s)
acting as the auxiliary to the master are either disabled or not present.
In addition to disabling the controller if present (as described above), the DIP switch (S1) located
on the GPIB / RS232C / IO assembly in the auxiliary cabinets. (Requires removal of the top
cover). The correct switch settings are shown below. (shown set for Master cabinet). Note that all
units must be powered down before reconfiguring. Also, the output wiring must be changed to
accommodate the new configuration.
Note: If the units being re-configured for multi-cabinet operation were not factory
configured this way, it may be necessary to balance the amplifiers by adjusting
their gain. Refer to MX Series User Manual (P/N 7003-960) for details on Amplifier
balancing.
When used as a multi-cabinet system, the system interface cables must be connected between
the master and the auxiliary cabinets.
MODE
MASTER
AUX
SINGLE-CAB
MULTI-CAB
1 2 3 4
S1
Top View
from back of MX
Interface Board
Detail
view
DIP S1
chassis
Figure 2-15: Multi-Cabinet DIP Switch Location and Setting