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User Instructions UM582127000
Spec. No. 582127000 (Model 721NPBB) Issue AC, January 2, 2013
Chapter 4. Troubleshooting and Repair Page 47
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Systems, North America, Inc. Any copying, use, or disclosure of it without the written permission of Emerson Network Power, Energy Systems, North America, Inc. is strictly prohibited.
Figure 4-13
SM-DU+ and Shunt Interface Assembly Connector Locations
TB1 - TB2
Wire Size Capacity: 16-26 AWG.
Recommended Torque: 2.2 in-lbs.
SM-DU+ and
Shunt Interface Board
power
can RS485 RS485
SHUNT SHUNT FUSE
RS232
SW1 SW2
J1
J7 J8 J6
J3 J4 J4A
J5
ON
OFF
1 2 3 45 6 7 8 1 2 3 4 5 6 7 8
Red Indicator
Yellow Indicator
Green Indicator
Shunt Interface BoardSM-DU+
1A
1B
TB1 TB2
J2J1