Emerson Liebert NX 50 and 60 Hz - Manual (Page 23)

Single Module UPS Installation
11
1.7 Control Cables and Communication
1.7.1 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 2 Monitoring board (U2) auxiliary terminal block detail
Intellislot 2
Intellislot 1
Intellislot 3
J1 J3
J22
J23
J12
J9
X4
J15
J16
J17
J24
J10 J30 J26 J4 J28 J25 J21 J13
Dry In MBC BCB BFP INV ACF EPO
X1 X2 X3
J2
LCD
J8
X7
X6
X5
X4
PWR
Modem
SNMP Card
The black square ( )
on each slot indicates Pin 1.