12
1:
Alarm
output
circuit
inside
the
device
2:
Any
positive
terminal
on
ALARM
OUT
interface
3:
Boolean
alarm
output
device
4:
AC
power
5:
Any
negative
terminal
on
ALARM
OUT
interface,
corresponding
to
2
Connecting
to
a
Third
‐
Party
Device
The
device
supports
two
types
of
RS485
interface:
RJ45
and
Phoenix
connector
for
connection
with
third
‐
party
devices.
RS485
Serial
Cables
Twisted
pair
is
recommended.
22
‐
28AWG
insulating
core
wire,
preferably
24AWG
or
26AWG
can
be
used.
Refer
to
the
table
below
for
the
maximum
length
of
RS485
serial
cables
with
different
baud
rates.
Table
4
‐
1
Maximum
length
of
RS485
serial
cables
with
different
baud
rates
Baud
rate
(bps)
Maximum
length
(m)
1200,
2400,
4800,
9600,
19200
900
38400
850
57600
550
115200
250
