9
6650-2201
Functionality and status indication
At power on, all LED's will be active during an initiation sequence followed by an auto-
matic initiation of the optical fibre link.The alarm will be set until the fibre optical link is
in operation and ready to transfer PROFIBUS DP data.
Data frames are transferred over the fibre optical link as long as the link is in operation
and the data rate has been detected.
When the fibre optical link is out of operation, it will be indicated by a local alarm, and
this will set the alarm output. When the link returns to operations mode, the alarm will
rest automatically.
The Bus active (BA) LED is set if data frames are received on the electrical PROFIBUS
DP port and the data rate is detected, independently of the status on fibre optical link.
Redundant power supply, galvanic isolated (2 kVAC) to other ports
ODW-611 should be supplied with safety extra low voltage (SELV). It is designed to
operate permanently over a wide input range and provided with two independent inputs
for enhanced redundancy if either supply fails.
9-position D-sub PROFIBUS DP connector
The pin assignment for the connector is in compliance with PROFIBUS standard
EN 50 170.
Single or multimode LC fibre connectors
ODW-611 uses Small Form Factor Pluggable (SFP) transceivers that are in compliance
with Multi-Sourcing Agreement (MSA). A wide range of different fibre transceivers and
connectors can be used.
Status port
This port enables supervision of fibre optical link status by a relay with both normally
open and closed contacts.
The status will be set if:
• Local or remote fibre link errors exist.
• The unit is out of service, e.g. no power supply.
Designed for hash environments, such as industrial, road and railway
applications
ODW-611 complies with standards for industrial environments and railway signalling
and telecommunications apparatus. Additionally the wide temperature range ODW-611
permits it to be installed in out-door cabinets without any additional measures, such as
heating, etc.
