Electrical Connections
14
2.2 Control Cables
2.2.1 Monitor Board Features
Based on your site’s specific needs, the UPS may require auxiliary connections to manage the battery
system (external battery circuit breaker, battery temperature sensor), communicate with a personal
computer or provide alarm signaling to external devices or for Remote Emergency Power Off (REPO).
The monitor board, arranged for this purpose, is located on the rear of the operator access door. The
main features are:
• Input and Output dry contacts signal (one pair of contacts of relay)
• Emergency Power Off control (EPO)
• Environmental parameter input interface
• User communication (for data setting and user background monitor)
• Intellislot™ interface
• Modem interface
• Temperature detect interface
Figure 6 shows the relationship and connection between the monitoring (U2) board and other boards
in the UPS.
Figure 6 Monitor board U2
Figure 7 Auxiliary terminal block detail
X1
User Interface
Board
U1
DSP Control
K1
Key & LED Board
U2
Monitor Board
M3
Parallel Logic
Board
M5
Auxiliary Power
NOTE: The black square (!)
on each slot indicates Pin 1.
J3
J1
J13 J21 J25 J28 J4 J26 J30 J10
J22
J23
J12
J9
J15
J17
J24
X4
X4
J16
X4
X2
X3
Intellislot 2
Intellislot 1
Intellislot 3
J8
J2
LCD
BFP INV ACF EPO Dry in MBC BCB
X5
X6
X7
PWR
MODEM
SNMP CARD
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