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The PTZ630 range adopts the following RS485 convention:
WHITE = RS485 + or A
GREEN = RS485 – or B
NOTE THAT A YELLOW CABLE IS EARTH. DO NOT CONNECT THIS.
You should initially be wiring the dome to the keyboard or DVR on your workshop
bench or at least your kitchen table to prove you know how to get everything to work.
Once you have done this, it is just a job of extending the cables and physically
installing the domes on site. You must obviously take note of the RS485 wiring
techniques mentioned at the beginning of these instructions and get the 120ohm
resistors correct in the “End of line” domes. Generally speaking you will always be
extending the RS485 signal from either the keypad or the dome using a CAT5 or
similar cable.
If you use cores from two different pairs in the CAT5 cable you will not get the benefit of the
shielding effect of the cable twists and the dome will function erratically. You must always
use a core from a PAIR, not two cores from two different pairs!!
Connecting the video out of the PTZ
The PTZ630 has a short BNC lead attached to it, this is the lead that carries the video
signal from the built-in camera. You need to extend this lead to the “VIDEO-IN” of
the DVR or monitor. Use a good quality RG59 coax cable or similar to do this.
TIP – If you can’t get a picture at the remote end you could always take your test
monitor to your PTZ and check the picture quality on its own short BNC lead.
Rear of PTZ730
The PTZ730 is one of the keypads that can be used
with the PTZ630 range. On the rear of the keypad
you will see the RS485 connections. Ensure they are
connected correctly i.e the RS485 + A line and the
RS485 – B line.
It is recommended to set the keypad on the PELCO-
D protocol with 2400 baud rate as the PTZ camera
will auto detect the settings.
PTZ730
keypad
RS485 connections
IF USING THE RJ45 CONNECTION LEAD, THE
FOLLOWING CABLES ARE USED:
RED = RS485 +
BLACK = RS485 -
GREEN = GROUND
YELLOW = RS232 OUT
- + - +