Hirschmann 943 893-321, Manual

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7
1 Introduction
Version 1.0 03/06
1 Introduction
The RS 485 Fiberoptic Repeater OZD 485 G12 BAS is
intended for use in optical RS 485 fieldbus networks
such as PROFIBUS, BITBUS and company-specific
busses.
It enables you to convert electrical RS 485 signals to
optical ones, and the reverse.
With the OZD 485 G12 BAS Repeaters, you can construct
universal half (2-wire) duplex transmission systems with
RS 485 interfaces.
You can integrate the Repeaters into existing electrical
RS 485 fieldbus networks. You can also build up a
complete optical RS 485 fieldbus network in line or star
topoligies with OZD 485 G12 BAS Repeaters.
The housing consists of two plastic sections and a front
panel made of metal. It can be mounted on a DIN rail.
Ports
The Repeater has three independent ports, which in turn
consist of a transmitter and a receiver component.
Port 1 is a 6-pin screw terminal block, and ports 2 and 3
are optical BFOC/2.5 (ST
®
) sockets.
Power supply
The power supply is +18 VDC to +32 VDC (typ. +24 VDC)
direct current.
System
OZD 485 G12 BAS
DA/STAT
3 1 2
RT+
K1+
K1+
K1-
K1-
RT-
Port 1
7-pin
terminal block
for operating
power supply
Port 3
optical,
BFOC/2.5
socket
Port 2
optical,
BFOC/2.5
socket
6-pin screw
terminal block for
port 1 , electrical
and
pull-up/pull-down
resistors and
characteristic
impedance
LED
indicators
Fig. 1: Fiberoptic Repeater OZD 485 G12 BAS with location of individual ports, terminal blocks and LED displays