Martin Exterior 1200 User Manual page 22

4. See Figure 9. Ensure that there is
a rubber seal B on the locking nut
end of the cable entry C, and
push this end through the hole
provided in the housing so that
the seal faces the outer surface
of the housing.
5. Screw the locking nut A onto the
cable entry from inside the
housing. Prevent the cable entry
from turning, and tighten the
locking nut until the seal makes a
water-resistant seal against the
outer surface of the housing. Do
not over-tighten, as this may
damage the seal or housing.
6. Thread the cable through the
compression nut F, washer E,
gland D, and cable entry C into
the housing.
7. Allow enough cable slack inside the housing to make connections. Prevent the cable
entry from turning and tighten the compression nut sufficiently to make a water-
resistant seal. Do not over-tighten, as this may damage the gland. Check that the
cable is firmly gripped in the rubber gland.
8. See Figure 10. The power terminals block has four spring-
loaded terminals labelled Ground, Neutral, Live 1 and
Live 2. Connect the power cable as follows:
• Connect the power cable's ground (earth) wire to the
terminal marked Ground.
• If using a single-phase system, connect the power
cable's neutral wire to the terminal marked Neutral and
connect the power cable's live wire to the terminal
marked Live 1. Important! Do not connect the live wire
to the terminal marked Live 2 as there is internal
continuity between this terminal and the Neutral
terminal via one of the main fuses.
• If using two phases of a three-phase system to obtain 200 - 240 V between two
phases, connect one phase to Live 1 and the other phase to Live 2. Do not connect
anything to the neutral terminal.
• If using a single-phase three-wire earthed mid-point system (used in certain regions
of the USA) to obtain 200 - 240 V between two live conductors, connect one live
wire to Live 1 and the other live wire to Live 2. Do not connect anything to the
neutral terminal.
22 Exterior 1200 Image Projector user manual
A
A – Locking nut
B – Seal
C – Cable entry
D – Gland
E – Washer
F – Compression nut
Figure 9: Cable gland assembly
SERVICE
- + - +
1 2 3 4 5 6
DMX DMX
OUT IN
B
C
D
E
Hz Setting
Figure 10: Power
terminals
F
Volt Setting