Pelco PV130 RS-422 Switch User Manual


 
C1919M-C (11/00)
PV130 RS-232/422 Converter Kit
Installation Instructions
®
DESCRIPTION
The PV130 RS-232/422 Converter Kit provides a bi-directional electrical interface between RS-232
and RS-422 data ports.
The plug-in power supply, included in this package, allows the PV130 to communicate serial port
data over wire pairs for distances up to 4,000 feet (1,219 m) on the RS-422 side.
User must supply all necessary cable between converter and receivers.
Contents of this package:
Qty Description Part number
1 RS-232/422 Converter EE03-1235-5430
1 12 VDC power supply, 1.2W PS04-1000-0112
INSTALLATION
Refer to Figure 1 during the installation instructions that follow.
Control Connections
1. Attach the 9-pin side of the converter to the computer’s serial port or to the COM 2 port on
the PelcoVision Transmitter.
2. Wire the receiver’s RX- and RX+ terminals to the converter’s TX- and TX+ terminals. If neces-
sary, use a 120-ohm resistor to terminate the line at the receiver’s RX- and RX+ terminals.
NOTE:
Proper operation of an RS-422 circuit requires that the active devices at both ends
of the communications facility be referenced to a common ground, such as earth. If the
ground is established through a metallic conductor, it is recommended that 100-ohm resis-
tors be placed in series with the ground connection at each end (refer to Figure 2). This will
limit any currents that may be caused by other ground paths.
Connecting the Power Supply (See Figure 1)
1. Connect the black/white stripe wire to the converter’s +12 VDC terminal and the solid black
wire to the GND terminal.
2. Plug the power supply into a 115 VAC wall socket or power strip.
Figure 1. Connection Diagram
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Clovis, CA 93612-5699
USA
In North America & Canada:
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DataFAX (800) 289-9108
International Customers:
Tel +1(559) 292-1981
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DataFAX +1(559) 292-0435
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Dillenburg Center
Dillenburgstraat 5F
5652 AM Eindhoven
The Netherlands
Tel +31(40) 251-9870
FAX +31(40) 251-9835
Pelco Online
www.pelco.com
*12 VDC POWER SUPPLY
*IF NECESSARY
GND
+12 VDC
PV130 CONVERTER
TO RECEIVER(S)
RX +
RX -
TX-
TX+
RX-
RX+
GND
+12 VDC
FEMALE DB9 TO
TRANSMITTER
COM 2 PORT