
1 Introduction
10
Version 04 05/2014
Transmission speed
The PROFIBUS-Repeater OZD Profi 12M … PRO
supports data rates from 9.6 kBit/s to 12 Mbit/s.
Redundancy
The redundant ring enables a very high level of trans -
mission reliability.
The redundant operating power supply can further
improve the operating reliability.
Extended ambient conditions
OZD Profi 12M G12 ... PRO devices with the “EEC” fea-
ture (extended environmental conditions) can be used in
the extended temperature range from –20°C to +60°C
and at up to 100% humidity.
Compatibility with other PROFIBUS repeaters
The devices are fully compatible with the repeaters of the
previous generation of OZD Profi 12M … and can be
combined with them.
The functional compatibility with devices of the earlier
generation of OZD Profi P3a, … P4a, … G3a, … G4a, …
G3a-1300 and … G4a-1300 can be enabled or disabled
with a DIL switch. Default setting of S7 is Position 0
(compatibility disabled).
Note:
The OZD Profi 12M … PRO must be switched off when
switching over DIL switches.