13
2 Introduction
OZD Profi G12D... ATEX 1 V. 03 07/2014
2 Introduction
S0 S1 S2 S3 S4 S5 S6 S7
System
CH1
CH2
CH3
CH3
CH2
24
V*
24
V
DI
B
DI
A
0V
0V
FG FG
DO
B
DO
A
CH
0V
F
NC
F
NO
CH
3
CH
2
F
DO NOT OPEN WHILE ENERGISED
DO NOT OPEN WHILE ENERGISED
NE PAS OUVRIR SOUS TENSION
NON APRIRE SOTTO TENSIONE
NÃO ABRIR QUANDO ENERGIZADO
9
4
3881321000000001
Ser.
N
o.
:
0123
4
56
7
89
Terminal blocks with connections for
CH1 (electrical channel),
functional earth,
signalling contact and
operating voltage supply
and with measuring points for the
receive level of the optical
channels
LED
indicators
Switch for operating mode
and internal
terminating resistors
Channel 2 and 3
optical,
BFOC/2.5 sockets
PROFIBUS Fiberoptic Repeater
OZD Profi G12DU ATEX 1,
OZD Profi G12DK ATEX 1
and
OZD Profi G12DE ATEX 1
are planned for use in optical PROFIBUS fieldbus net-
works.
They enable implementation of electrical PROFIBUS
interfaces (RS 485 level) in optical PROFIBUS interfaces
and vice-versa.
By using the known advantages of the optical transmis-
sion technology, the devices can be integrated in the
existing PROFIBUS fieldbus networks. Likewise, com-
plete structure of a PROFIBUS fieldbus network with
devices in line, star and ring topology is possible in any
combination.
Explosion protection
The devices have been approved for operation in the
explosion protection zones 1, 21, 2 and 22 as per AT.
They are thus interfaces between electrical Profibus-sig-
nals from the explosion hazard areas (ex-area) and the
safe area (non-ex-area).
The electronic circuits are separated by encapsulation as
per EN 50028/VDE 0170/0171 part 9 from the explosive
atmosphere.
The electrical connections are lead from the electronic
circuits through the encapsulation and placed on the
front side of the housing on the terminals of a terminal
block.
Device variants
The repeater
- OZD Profi G12DU ATEX 1 has no protective housing
- OZD Profi G12DK ATEX 1 has a plastic protective hous-
ing (i. e. it conforms to a OZD Profi G12DU ATEX 1 with
plastic protective housing)
- OZD Profi G12DE ATEX 1 has stainless steel protective
housing (i. e. it conforms to a
OZD Profi G12DU ATEX 1 with stainless steel protective
housing)
Application area
The device has electromagnetic compatibility as per EN
61326 and NAMUR recommendation NE21.
It is planned for use in the industrial area.
Channels
Each device has three independent channels (ports),
which in turn comprise a transmitter and receiver.
The electric channel (port 1) is placed on 4 terminals of
the terminal block. For types OZD Profi … DK … and
OZD Profi … DE … with connection cables are led out-
wards via PG cable glands.
Fig. 1: OZD Profi G12DU ATEX 1 with location of each port, the terminal blocks and the LED indicators
