Z2094B Datasheet, PDF (6/8 Pages) Keysight Technologies – Solar Array Simulator System

06 | Keysight | Solar Array Simulator System - Technical Overview
SAS System Chassis – Z2091B-197
The Z2091B-197 SAS Chassis provides output disconnect relays
and digital signal routing, conditioning and expansion for systems
using Keysight’s E4360A Solar Array Simulator (SAS) Mainframes
and E4360 series Power Supply Modules. The chassis implements
a parallel signal propagation scheme that is well suited to a
system employing many E4360A mainframes.
In a multiple-rack system, the Z2091B-197 chassis are
daisy-chained (see figure below). The triggers from the master
mainframe in the primary rack are transmitted to the chassis
in the secondary rack, then the tertiary rack, then back to the
primary rack. Inter-rack propagation delays are on the order
of nanoseconds. Within each rack, triggers are propagated in
parallel to the mainframes in that rack.
Key features
–– Fault Output signals from the SAS mainframe’s frame will
assert its digital port fault output signal which can be
configured to shut down the entire system.
–– Output Inhibit manual push-button on the rack
–– “Expansion system” signals to coordinate multiple racks
as a single system up to 100 strings (50 mainframes) are
supported
–– External switch can be used to inhibit the SAS outputs
–– Programmatic inhibit signal - system software can inhibit the
SAS outputs
–– Optically isolated TTL level signal - the SAS outputs can be
inhibited by a TTL input signal, which can be made active high
or active low, level sensitive
Figure 4. The block diagram above shows the interconnects between the UUT (Satellite), three SAS racks and the external LAN site and external inhibit control.