Protocol converter from pelco-d and pelco-p to

Protocol converter from pelco-d and pelco-p to
CONV5-C version 1
Simple protocol converter from Pelco-D and Pelco-P to Sensormatic
MANUAL INSTRUCTION
The protocol converter is microprocessor device designed to control the Sensormatic PTZ cameras by using
keyboards (or DVRs), which work in Pelco-D or Pelco-P protocols. It allows for integration the cameras of
Sensormatic company with other cameras system or digital recorders. The CONV-5C is economic device, which
supports only motion control (without support of PRESET, PATTERN, TOUR, ect. Functions), but it allows to
control multiple cameras.
To use all functions of Sensormatic cameras, you should use the CONV-5B, which have 2-way
communication and it built-in memory to support PRESET, PATTERN i TOUR functions. The CONV5-B is
designed only to one camera.
1. Connecting structure
The protocol converter is connected between keyboard and PTZ cameras and need 9~24V DC or AC power
supply.
Connecting structure of CONV5-C converter
2. Description of connecting clamps
LED1 – signaling transmission of Sensormatic
LED2 – signaling transmission of Pelco-D
1
10
Power supply: Connect 9~24V DC / AC power supply
Keyboard
RS-485 A/B: Connect to keyboard with Pelco-D or Pelco-P protocol
Term1: The clamp to connect 120Ω internal resistor for RS-485 interface of
keyboard.
Sensormatic camera
RS-485 A/B: Connect cable to RS-422 clamp in Sensormatic camera: RS485A+ do RS-422 RX+, RS485-B- do RS-422 RXTerm2: The clamp to connect 120Ω internal resistor for RS-485 interface of
Sensormatic camera
GND: It’s clamps to connect shield of RS-485 cables.
Ewimar Sp. z o.o.
www.ewimar.pl
export@ewimar.pl
CONV5-C rev 1.0
For longer cables of bus, both RS-485 interface and Biphase,
should be included to terminating resistor. This will prevent
wave reflections in cables, which are cause of transmission
errors. Terminating resistors should be connected only in
devices, which are of ends of the bus. Larger number of resistors
will cause an excessive burden of transmission.
Switching resistors in converter, consists in making wire
connection terminal of TERM with A+ .
3. Description of connecting
OFF
(up)
ON
(down)
All connections and configurations of switches should be performed at disconnect power supply of the
converter.
Description of switches:
Transmission rate
2400baud
4800baud
9600baud
19200baud
of keyboard
DIP 1
OFF
ON
OFF
ON
DIP 2
OFF
OFF
ON
ON
Recommended baud rate is 4800baud or less. Baud rate 9600 is accepted, but when keyboard send packets too often, control can be
unstable.
Transmission rate
2400baud
4800baud
9600baud
19200baud
of camera
DIP 3
OFF
ON
OFF
ON
DIP 4
OFF
OFF
ON
ON
Interface to camera provide independent setting of baud rate but Sensormatic camera usually accept rate 4800baud and this baud rate should
be set.
Chose protocol
Pelco-D
Pelco-P
of keyboard
DIP 5
OFF
ON
It’s for chose protocol, which will be use in PTZ keyboard. For Pelco-P may be necessary to include function of increasing address, because
in this protocol address start not 0 rather than 1.
Increase address
DIP 5
It’s to increasing address in Pelco-P protocol.
Disabled
OFF
Enabled
ON
4. Start-up
Please pay attention to correct polarity of RS-485 interface.
Correct working of converter can be determined by LED observing. If device is correct configured and connected,
at the time of trying to control from desktop, both LEDs should blink.
Ewimar Sp. z o.o.
www.ewimar.pl
export@ewimar.pl
CONV5-C rev 1.0
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