User Instructions UM582127000
Spec. No. 582127000 (Model 721NPBB) Issue AC, January 2, 2013
Chapter 4. Troubleshooting and Repair Page 47
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Figure 4-13
SM-DU+ and Shunt Interface Assembly Connector Locations
TB1 - TB2
WireS ize Capacity: 16-26AWG.
RecommendedTorque: 2.2 in-lbs.
SM-DU+a nd
Shunt Interface Board
power can RS485 RS485
SHUNT SHUNT FUSE RS232
SW1 SW2
J1 J7 J8 J6 J3 J4 J4A J5
ON
OFF1 234 5 6 7 8 12 3 4 5 6 7 8
RedIndicator
YellowIndicator
GreenIndicator
Shunt Interface BoardSM-DU+
1A
1B TB1 TB2
J2J1