Installation and Operation, cont’d
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POWER |
| LAN |
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12V |
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| COM3 | COM4 COM5 | COM6 | |
.5A MAX |
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| TX RX | TX RX TX RX | TX RX |
1 | 2 | 3 | 4 | 5 | 7 |
Figure 2-7 — IPL T S6 interface back panel
Power
aPower connection — Plug the unit’s external 12 VDC power supply into this connector. The power supply is provided with the unit.
CWhen you are connecting the power supply, voltage polarity is extremely important. Applying power with incorrect voltage polarity could damage the power supply and the interface. Identify the power cord negative lead by the ridges on the side of the cord.
Smooth 
Ridges
A | A |
SECTION A–A
3/16"
Power Supply(5 mm) Max. Output Cord
Orange Captive
Screw Connector
Ground 
+12 VDC
Power Supply
Output Cord
External
Power Supply
(12 VDC, 1 A )
AC Power Cord
Figure 2-8 — Power connector wiring
NDo not tin the stripped power supply leads before installing the captive screw connector. Tinned wires are not as secure in the captive screw connectors and could pull out.
CThe two power cord wires must be kept separate while the power supply is plugged in. Remove power before continuing.
To verify the polarity before connection, plug in the power supply with no load and check the output with a voltmeter.