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NetDog 82 BW Back Panel
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Fig. 7.1 - Pinouts and connectors on the NetDog's back panel.
Power Connection
7.1
The NetDog has one screw terminal barrier plug power connector, located in the middle of the back panel. (See
Fig. 7.1)
Before you connect a power supply to the NetDog, test the voltage of your power supply:
·
Connect the black common lead of a voltmeter to the ground terminal of the battery, and connect the red
lead of the voltmeter to the battery's –48 VDC terminal. The voltmeter should read between –43 and –
53 VDC. If the reading is outside this range, test the power supply.
To connect the NetDog to a power supply, follow these steps:
1. Remove the fuse from the back panel of the NetDog. Do not reinsert the fuse until all connections to
the unit have been made.
2. Remove the power connector plug from the Power Connector. Note that the plug can be inserted into the
power connector only one way — this ensures that the barrier plug can only be reinserted with the
correct polarity. Note that the –48V terminal is on the left and the GND terminal is on the right.
3. Use the grounding lug to properly ground the unit.
4. Insert a battery ground into the power connector plug's right terminal and tighten the screw; then
insert a –48 VDC line to the plug's left terminal and tighten its screw.
5. Push the power connector plug firmly back into the power connector. If the power feed is connected
correctly, the Power LED on the front of the unit will light GREEN. If the polarity of the power feed is
reversed, the Power LED will not light.
6. Reinsert the fuse to power the NetDog. The front panel LEDs will flash RED and GREEN.
Summary of Contents for NetDog 82 BW
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