13
Connecting
to
a
PTZ
via
RS485
interface
The
RJ45
connector
should
be
connected
with
the
PTZ
control
cable
as
follows:
z
The
RJ45’s
RS485+
terminal
is
connected
to
the
PTZ;
RJ45’s
RS485
‐
terminal
is
connected
to
the
PTZ,
as
shown
in
the
following
figure.
z
If
the
PTZ
is
grounded,
the
PTZ
control
cable's
G
terminal
is
connected
to
the
RJ45
connector's
Terminal
G
(No.5).
z
For
connection
with
several
PTZs,
connect
the
control
cables
of
the
PTZs
and
follow
the
figure
below
for
further
connection.
1:
PTZ’s
RS485
control
cable
2:
PTZ’s
RS485+
terminal
3:
RJ45’s
RS485+
terminal
4:
PTZ’s
RS485
‐
terminal
5:
RJ45’s
RS485
‐
terminal
6:
Twisted
pair
Connecting
to
a
third
‐
party
device
via
RS485
interface
A
third
‐
party
device
control
cable
must
be
an
RS485
cable
that
meets
the
following
requirements:
z
The
RJ45’s
RS485+
terminal
is
connected
to
the
RS485+’s
third
‐
party
device;
RJ45’s
RS485
‐
terminal
is
connected
to
the
RJ45
connector’s
RS485
‐
terminal,
as
shown
in
the
following
figure.
z
If
the
third
‐
party
device
is
grounded,
the
third
‐
party
device
control
cable's
Terminal
G
is
connected
to
the
RJ45
connector's
Terminal
G
(No.5)
Содержание DVR200 series
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