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2.1 INSTALLING THE DUAL-RELAY OPTION BOARD
To install the
!CAUTION: The meter has no
!IMPORTANT: Disconnect the power from the unit before installing this option board.
1.Hold the board in a horizontal position, with the TB3 connector facing towards the rear of the meter.
2.Line up the 3 connectors located on the back side of the board with pin groups J3, J4 and J5 on the mother card.
3.Push connectors down to secure on relay board.
TB3/RELAY
1 2 3 4 5 6
NC1 N01 CM1 NC2 NO2 CM2
S5
AB
1 2 3
TB1
RELAY BD
TB3
4 5 6
MAIN BD
1 2 3
1TB2
2 3
4 5 | 6 |
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C | 4 | 5 |
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| LO |
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J5
2 1
J3
1
J4
2 1
10
Figure 2-1. Dual-Relay Option Board
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