Emerson NetSure 721NPBB User Instructions page 39

NetSure ™ -48V DC Power System
User Instructions, UM582127000 (Issue AD, January 20, 2014)
17. Enable the external alarms, or notify appropriate personnel that this procedure is finished.
18. Ensure that there are no local or remote alarms active on the system.
Figure 20. System Interface Circuit Card Connector Locations
RS485 Connection
TB2 1A: RS485+
TB2 2A: RS485-
RS232 Connection
TB2 1B: CGND
TB2 2B: TXD232
TB2 3B:RXD232
1
TB1-1: Battery Tray FA
TB1-2: External Battery FA
TB1-3: External System FA
TB1-4: External Battery Monitoring (-)
TB1-5: External Battery Monitoring (+)
TB1
TB1-2, TB1-3, TB1-4, TB1-5 Main Bay Only.
Wire Size Capacity: 22-12 AWG.
Recommended Torque: 3.0 in-lbs.
FA Signals: Battery applied to the terminal
Spec. No: 582127000
Model No: 721
NPBB
1B 2B 3B
TB2
1A 2A 3A
J10
J8
TB1
5
TP1 TP2 TP3
TP1 (+) and TP2 (-)
Bay Voltage
Monitoring
turns in an alarm.
J1, J2, J3, J4
Distribution Panels FA Inputs
J8 (Main Bay Only)
Selects to power Controller
J1
from "Battery Power" or not.
J2
J3
Shorting Jumper
J4
J10 (Main Bay Only)
Battery Monitoring External / Internal
(see TB1-4 and TB1-5 for
external monitoring points)
J5
TP4
J5
CAN
TP3 (+) and TP4 (-)
Bay Load
Shunt Monitoring
[31]
No
Battery Battery
Pwr Pwr
1
2
3
J8
External Internal
1
2
3
Shorting Jumper J10
Code: UM582127000
Issue AD, January 20, 2014
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8
9