Manual

Introduction
DVR User Manual
6
RS485 Connection
There are two types of RS485 interfaces:
Type 1 Type 2
Type 1: The P/Z interfaces are used to connect speed dome. K/B interfaces are used to connect
keyboard.
Type 2: The RS485 interfaces are not only used to connect speed dome but also to connect
keyboard.
The way to connect speed dome to the DVR:
Type 1: Disconnect pluggable block from the RS485 terminal block and then loosen the screws
from the pluggable block, insert signal cables into Y and Z port separately (Y is TX+; Z is TX-)
and tighten the screws. Next, c
onnect pluggable block back into terminal block. Finally,
connect the video cable of the speed dome to the video input interface of the DVR.
Type 2: Disconnect pluggable block from the RS485 terminal block and then loosen the screws
from the pluggable block, insert signal cables into A and B port separately (A is TX+; B is TX-)
and tighten the screws. Next, connect pluggable block back into terminal block. Finally,
connect the video cable of the speed dome to the video input interface of the DVR.
Note:
The pluggable block of some models may not be connected into the terminal block and you shall obtain it
from the accessories package.
Introduction
DVR User Manual
6
RS485 Connection
There are two types of RS485 interfaces:
Type 1 Type 2
Type 1: The P/Z interfaces are used to connect speed dome. K/B interfaces are used to connect
keyboard.
Type 2: The RS485 interfaces are not only used to connect speed dome but also to connect
keyboard.
The way to connect speed dome to the DVR:
Type 1: Disconnect pluggable block from the RS485 terminal block and then loosen the screws
from the pluggable block, insert signal cables into Y and Z port separately (Y is TX+; Z is TX-)
and tighten the screws. Next,
connect pluggable block back into terminal block. Finally,
connect the video cable of the speed dome to the video input interface of the DVR.
Type 2: Disconnect pluggable block from the RS485 terminal block and then loosen the screws
from the pluggable block, insert signal cables into A and B port separately (A is TX+; B is TX-)
and tighten the screws. Next, connect pluggable block back into terminal block. Finally,
connect the video cable of the speed dome to the video input interface of the DVR.
Note:
The pluggable block of some models may not be connected into the terminal block and you shall obtain it
from the accessories package.