User's Manual
Table Of Contents
- 1. FUNCTIONS AND PERFORMANCE 4
- FUNCTIONS AND PERFORMANCE
- TECHNICAL CHARACTERISTICS
- THE POWER SUPPLY
- VERIFICATION OF THE READER
- INSTALLATION
- EXTERNAL CONNECTIONS
- INSTALLATION AND CONNECTION PROCEDURES FOR THE ASYNCHRONOUS LINKS
- OPEN COLLECTOR INTERFACE
- THE OUTPUTS (JR3)
- THE INPUTS (JR4)
- OPERATING FREQUENCY CHANNEL
- ADJUSTMENT OF THE READING RANGE
- ORIENTATION OF THE ANTENNA
- FCC Notice
- CE Notice
REFERENCE DU DOCUMENT / DOCUMENT REFERENCE
Langue/ Language Numéro / Number Code Doc. / Doc. Code Indice / Revision Index Pages
FR 13053 108 B
12/27
CE DOCUMENT EST LA PROPRIÉTÉ DE BALOGH IL NE PEUT ETRE COMMUNIQUÉ À DES TIERS SANS AUTORISATION ECRTITE PRÉALABLE.
THIS DOCUMENT IS BALOGH PROPERTY.IT CANNOT BE DISCLOSED TO ANY PARTY WITHOUT PREVIOUS WRITTEN AUTHORIZATION.
Simplex wiring diagram:
L
R
R : line-matching resistor,
added if needed
Half-duplex wiring diagram:
L
RR
R : line-matching resistors,
added if needed
The length of the derivation should be as short as possible (< 30 cm).
The maximum length allowed can be calculated from the cable characteristics using the equation
below.
L < 1300 / (Z
0
x C
L
) L in metres, Z
O
in ohms and C
L
in pF
7.4.2. Line biasing
For RS-485, line biasing may prove necessary and must be done externally and only at one point on
the line.
The line “+” is connected to +5V via a 4K7 resistor.
The line “-” is connected to 0V via a 4K7 resistor.