Johnson Controls S300 Series Hardware Installation Manual page 9

S300-DIN-L
 To verify DC ground:
1. Verify the wire connection between the power supply and COM on the
DIN-mounted device.
2. Verify the wire connection between the power supply and its standoff.
 To verify chassis ground:
1. Verify the wire connection between the DIN-mounted device earth and the
backplate.
2. Verify the wire connection between the primary building ground and the
backplate.
3. Verify the wire connection between the DC and one of the power supply's
mounting holes.
Power Supply (S300-DIN-L-PS)
S300-DIN-L-PS is the power supply to be used with S300-DIN-L. It is shipped
already mounted on the backplate. S300-DIN-L-PS is equipped with three
indicators: AC power, DC power, and a trouble indicator (green on normal
operation). A battery charger is included with the power supply package.
This power supply has no replaceable fuses.
AC LED
indicator
Trouble
indicator
Battery
connector
 To replace the S300-DIN-L-PS power supply:
1. Disconnect the AC power source.
2. Disconnect the BLU and BRN wires from the terminal block on the power
supply.
3. Disconnect the battery cable.
4. Disconnect the two DC power wires.
24-10239-340 Rev. B
This document contains confidential and proprietary information of Johnson Controls
© 2017 Johnson Control
Figure 1: S300-DIN-L-PS
Hardware Installation
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