Humminbird HRS1, Installation Manual, Page: 13 / 16

13
Wiring
CAUTION : The Serial Cable (RS-232) has both a black and a dark-grey wire. Be
sure to correctly identify them.
1. Make the connections using the supplied butt connectors. See Table 1 on the
next page and insert the end of the first colored wire from the Serial Cable (RS-
232) into one of the holes in a butt connector (see Figure 6).
Do not remove the
colored insulation .
NOTE : There are two extra butt connectors supplied.
2. Continue to follow the wire order shown in Table 1, and insert the proper
colored wire from the Sensor Cable into the neighboring hole in the butt
connector.
3. With the wires pushed tightly against the far inside wall of the connector, use
slip-joint pliers to squeeze the red button until it depresses. Gently tug on each
wire to ensure that it is securely fastened.
4. Repeat this process until all the wires are connected with the exception of the
blue and brown wires in the Sensor Cable and the red wire in the Serial Cable
(RS-232).
NOTE : The butt connectors have three holes to accommodate up to three
wires. Two of the connectors will contain three wires. One of the connectors will
hold three black wires. One of the connectors will hold two bare wires and a
DARK-GREY wire.
white
Figure 6. Using the butt connectors
butt
Serial Sensor Power
connector
blue and brown wires
green
with heat-shrink tubing
heat-shrink
tubing
NOTE : Serial Cable (RS-232)
has both a black and
a dark-grey wire
Cable Cable Cable
Do not connect.
red wire with
heat-shrink tubing
Do not connect
(RS-232)