Installation Guide
MX1
Fire Alarm System (NZ)
LT0360 ISSUE 2.43
29 NOVEMBER 2017
PAGE 5
15U Cabinet
A dual switched GPO is supplied
with the MX1 and must be wired by
a suitably qualified technician. The
mains outlet is supplied with the
MX1
and must be wired by a
suitably qualified electrician to
comply with NZ electricity safety
regulations. A dedicated current-
limited supply must be used.
It is recommended the cable entry
knockout behind the mains block be
used for the mains cable entry.
Alternatively route the mains cable
as shown in Figure 4(b) to minimise
electrical interference between the
mains supply and the other circuits
connected to the electronics.
Terminate the incoming Mains earth
wire to the screw terminal block
beneath the GPO. Do not loosen or
remove the earth wire from the
terminal block to the GPO.
Figure 4(b) - 15U Cabinet Mains Wiring
Battery Wiring
The
MX1
Slimline cabinet has space for a pair of 12V
batteries up to 17Ah (or 24Ah mounted on their sides).
These will be sufficient for most brigade-connected
systems.
The
MX1
15U cabinet has space for a pair of 12V
batteries up to 40Ah.
Many non-brigade-connected systems will require up to
40Ah batteries to meet the 72 hour standby operation
requirements. These will not fit in the
MX1
Slimline
cabinet, and will require a separate cabinet which must
be located as near as practical to the
MX1
.
The wiring between the external battery cabinet and the
MX1
should use 4mm
2
cable to minimise voltage drop.
A 10A thermal cutout (e.g., SU0159) should be wired
into the positive battery lead inside the battery cabinet
(check maximum loading first). Refer Figure 5.
+
-
+
-
BATT-
M
X
1
C
O
N
T
R
O
L
L
E
R
10A thermal cutout when
using external battery cabinet
BATT+
Figure 5
– Battery wiring to
MX1
Controller
