Xtreme Power Conversion Corporaon
M90U-80 & 140 User’s Manual
Page 9
Uninterrupble Power Supply
2.5 Types of UPS Cabinet
There are two types of UPS cabinets. The M90U-80 has slots for (4) power modules amd (16) baery modules. The
M90U-140 has slots for (8) power modules (baeries are contained in a separate cabinet.
M90U-80 M90U-140
Cabinet
Cabinet Height 42U 42U
Switch Unit / MBS (1) 1 1
STS (2) 1 1
Max. Power Module (3) 4 8
Baery Module (4) 16 N/A
2.6 Exterior
In the front of the UPS, there are control interface (LCD Panel) and door lock.
The casters at the boom of the UPS cabinet can be used to move over short distances. There are four leveling feet
to x and stabilize the UPS cabinet on the ground. Refer to Figure 2-7.
Inside the cabinet, there are input, output and maintenace bypass breakers, STS Module, Power Module slots and
Baery module slots (Baery module for M90U-80 only). All wiring terminal blocks are located in the rear and top
of cabinet.