Pelco PV130 RS-422 installation instructions Description, Installation, Connection Diagram

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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.

FEMALE DB9 TO TRANSMITTER COM 2 PORT

+12 VDC

*12 VDC POWER SUPPLY

GND

*IF NECESSARY

PV130 CONVERTER

RX +

RX -

TO RECEIVER(S)

TX- TX+ RX- RX+ GND +12 VDC

Figure 1. Connection Diagram