Electrical Connections
16
2.3.2 Maintenance Bypass Cabinet Interface
J26 and J30 are the MBC interface.
2.3.3 BCB Box Interface
J10 is the BCB box interface.
Figure 9
Jumper connection for BCB interface
Table 2
Maintenance bypass cabinet interface
Position
Name
Description
J26.1
T_IT
1
Input transformer over temperature (N.C.)
J26.2
AUX_I
Reserved
J26.3
+12V
+12V Power
J26.4
GND
Power Ground
J30.1
FUSE
Reserved
J30.2
F_FAN
Fan Fail Alarm (N.C.)
J30.3
T_OT
1
Output Transformer Overtemperature (N.C.)
J30.4
AUX_O
Reserved
1 - Must be configured by software before becoming active
NOTE
All auxiliary cables of terminal must be double-insulated. Wire should be 20-16AWG stranded
for maximum runs between 82 and 164 feet (25-50m), respectively.
Table 3
BCB box interface
Position
Name
Description
J10.1
DRV
BCB Driver Signal - Reserved
J10.2
FB
BCB Contact State
J10.3
GND
Power Ground
J10.4
OL
BCB On-Line - Input - This pin will become active when
BCB interface is connected. (N.O.)
NOTE
All auxiliary cables of terminal must be double-insulated. Wire should be 20-16AWG stranded
for maximum runs between 82 and 164 feet (25-50m), respectively.
NOTE
If BCB interface is connected, a jumper needs to added between Pin 3 and Pin 4.
UPS Monitoring Board
J10
OL
DR
V
GN
D
FB
Battery Circuit Breaker
OL
Aux – N.O.
Aux – N.O.