Hardware reference guide

Networking
35013379 11/2011 251
Futhermore when the contacts of the diagnostic relay are open,
z if the detected error is internal the Error LED is ON.
z if the detected error is external the BrkF LED is ON.
NOTE: When the 140NRP95400 is not powered, the contacts of the diagnostic relay
are open.
Electrical Coaxial Port
The 140NRP95400 fiber optic repeater module is equiped with an electrical coaxial
RIO interface using an "F"-style connector. In order to maintain bend radius
tolerance on coaxial cable the electrical coaxial port is equiped with a right-angle F
adapter.
The electrical coaxial port has the same network connections, specifications and
restrictions as other remote I/O devices, and must be treated accordingly. See
Remote I/O Cable System Planning and Installation Guide for information regarding
planning your network configuration as well as the installation of the network
electrical coaxial cable.
Optical Ports
The 140NRP95400 fiber optic repeater module is equiped with two optical ports
(FPort1 and FPort2). One pair of fiber optic cables are connected to one fiber optic
port using two low-loss industrial ST-type connectors (one for the transmitter signal
(Tx) and one for the receiver signal (Rx)).
Using Fiber Optics in a RIO System
The following represent four typical configurations that show the wide range of the
network architecture:
z Point-to-Point topology
z Bus topology
z Tree topology
z Self-Healing Ring topology
CAUTION
CONNECTIVITY COMPLIANCE
To maintain CE compliance with the European Directive on EMC (89/336/EEC),
the 140NRP95400 module must be connected using quad shielded cable (see the
Remote I/O Cable System Planning and Installation Guide).
Failure to follow these instructions can result in injury or equipment damage.