User Manual of the PTZKB835 Keyboard
5
Chapter 2
Device Appearance
2.1
Rear Panel Description
Figure 2-1 The Rear Panel of PTZKB835 Keyboard
Notes
：
The green end with a
G
identifier on the rear panel is for grounding.
Number
Physical Interfaces
Description
1
Grounding
The pillar for grounding.
2
PTZ-CON
(PTZ Control Signal Output)
As main keyboard: Connect the dome camera or the RS485 of the PTZ:
TA
connects
to
RS485+
, and
TB
connects to
RS485-.
As auxiliary keyboard: Connect the PTZ-AUX interface of the upper level keyboard:
TA
connects to
RA
and
TB
connects to
RB
.
3
DVR/MATRIX-CON1
(DVR Control Signal
Output)
As main keyboard: Connect the DVR KB interface;
TA
connects
D+
，
TB
connects
D-
;
When connecting the RS-485 of the VMS: TA connects to the 6
th
pin and TB
connects to 5
th
pin. When using the RS-485-to-RS-232 interface:
TA
connects to 4
th
pin and
TB
connects to 3
rd
pin.
As auxiliary keyboard: Connect the AUX2 interface of the upper level keyboard.
TA
connects to
RA
and
TB
connects to
RB.
4
DVR/MATRIX-CON2
(Control Signal Output)
Output the RS-485 signal received by the 9
th
interface identified in the figure above
(AUX 1 interface).
5
RS232 Serial Interface
For the keyboard firmware upgrading and the control interface for the analog
matrix.
6
Power Supply
12VDC
7
Power Switch
Power on/ off
8
PTZ-AUX
(Auxiliary keyboard PTZ
control signal input)
Connect to the lower level PTZ-CON interface;
RA
connects to
TA
and
RB
connects
to
TB.
9
DVR/MATRIX-AUX1
(Auxiliary keyboard DVR
control signal input)
Connect a RS-485 signal source to receive the RS-485 signal.
10
DVR/MATRIX-AUX2
(Auxiliary keyboard control
signal input)
Connect to the DVR/MATRIX-CON interface of the lower level keyboard:
RA
connects to
TA
,
RB
connects to
TB.
We name the keyboard directly connecting the main keyboard
upper level keyboard
and we call the keyboard connecting to the
upper level keyboard the
lower level keyboard
. For detailed information, see Chapter 2.4 for typical wiring methods.
