NM
‐
IP1100M
11
5.1.Connectors
9
pin
terminal
block
RS
‐
485
The
RS
‐
485
serial
port
consists
of
TRX+(RX+)
and
TRX
‐
(RX
‐
)
as
following
the
following
image.
RS
‐
485
Connection
Sensor
(DI)
connection
The
camera
provides
1
channel
D/I.
It
can
be
connected
to
either
a
voltage
type
sensor
or
a
relay
type
sensor
as
the
following
figures.
It
can
be
selected
by
software.
Input
voltage
range:
0
VDC
minimum
to
24
VDC
maximum
Input
voltage
threshold:
1
V
Caution
!
Do
not
exceed
the
maximum
input
voltage
or
relay
rate.
ETHERN
ET
Micro SD
RESE
T
RS-485 DO DI
AUDI
O
- +
C 1 C 1
O
ut
In
TRX+(RX+)
<RS-485 Application>
+
-
TRX-(RX-)
TX+
TX-
PTZ Device
485
Devices
