Watch-Dog 3388C Product Manual - page 6
6
Connecting the GPRS modem to the battery and solar panel
Before connecting the solar panel to the modem, temporarily cover the panel with cardboard to
prevent any current from being generated during the installation.
1. Feed the black cable from the solar panel through the strain relief on the bottom of the Modem
Enclosure.
2. Attach the black and red solar panel wires to the green circuit board as diagrammed below. The
red wire attaches to the fourth slot from the bottom. The black wire attaches to the third slot from the
bottom. The slot is opened for insertion by pushing straight down on the orange button with a small
screwdriver or ballpoint pen. Before pushing on the buttons, insert the tinned leads into the holes.
Next, simultaneously push down a button and push the wire into the slot. Repeat for the second wire.
Note that the orange buttons may or may not return to their upward position after the wires are
inserted. Give the wires a slight tug to ensure they are attached securely.
Note: Attaching the solar panel wires can be a little challenging. If you are having difficulty, try some
of the following techniques.
- Temporarily slide the modem (silver box on left side of enclosure) out of the slot on the side. This
gives more room for maneuvering the wires. When re-inserting the modem, be sure the connectors
are toward the bottom of the enclosure.
- Use a needle-nose pliers to help push the wires into the slots.
- Get a second person to push down the orange button while you insert the wires.