Installation Guide
MX1
Fire Alarm System (NZ)
LT0360 ISSUE 2.43
29 NOVEMBER 2017
PAGE 18
Figure 28
– PIB Ring Network
PIB Wiring
The PIB and other network equipment are powered by the
MX1
via one of the
MX1
’s +VBF supplies. This supply
must not be used for any directly-connected field wiring. Alternatively, the PIB, Moxa switch, and Ethernet Extender
(if present) can be powered off the LOOP INTERFACE supply terminals J33, using a fused lead (e.g., a spare
LM0459 supplied with an
MX
Loop Card). The PIB’s J24 serial port is connected using loom LM0576 to whichever
serial port (0, 2, 3 or 4) is configured in the
MX1
for networking.
Figure 29
– PIB to
MX1
Wiring
To enable the PIB to be used to remotely access the
MX1
for programming, remote diagnostics or remote
operation
, then a null modem serial cable LM0076 must be fitted between the PIB’s RS232 Port J22 and the
MX1
’s
Diag/Prog port J22 as shown in Figure 29.
Copper or Fibre
Copper or Fibre
Copper or Fibre
LM0576
MX1 Controller Board
PIB Board
2
3
4
0
MX1
Serial
Ports
LM0076
DIAG/PROG
Port
J24
J22
J21
J22
0V
24V
