D
IGITAL
C
ONTROL
I
NCORPORATED
6
DigiTrak MFCB Operator’s Manual
For a
freestanding
remote display, use the power cable with the same round four-hole
connector at both ends (shown in the preceding images at left). For a
panel-mounted
remote
display, use the cable with the rectangular orange four-hole connector shown at right. Both
cables are included with the MFCB.
Powering the MFCB
The power ports on the cable box and freestanding remote display (FSD) are keyed for
proper alignment. To connect the power cable to the cable box, align the key marks in the
connector with the key slots in the power port, then push in and rotate the cable connector
clockwise until it locks into place with a snapping sound.
Connect the other end of the power cable to the DC power source. When using the cable with
the bare wires at one end (recommended), connect the white wire to the positive terminal and
the black wire to the negative terminal. Otherwise, plug the DC cable connector directly into
the drill rig’s DC power port.
For the best results, power the cable box directly from a standard 12-28 VDC battery or
power source, not
the drill rig’s battery. For bores shorter than 1000 ft (305 m), one 12-volt
battery will suffice. If the bore length exceeds 1000 ft, use an additional battery in series as
shown in the following diagram.
–
+
–
+
–
+
4
3
2
1
Wiring Batteries In Series
12
–28 VDC
12V Battery
12V Battery
Connect
batteries in the
order shown:
1,2,3,4.
Disconnect
batteries in the
opposite order.