Presentation
Original instructions
Function
The 140 NRP 954 00 fiber optical repeater module provides communication between two or more RIO nodes or segments of networks over a multimode fiber optic medium. Each repeater contains one electrical RIO interface and two fiber optic transceivers.
Illustration
The following figure shows the 140 NRP 954 00 (NRP) module parts.
1 
Version label
2 
Model number, module description, color code
3 
LED area
4 
Removable door
5 
Customer identification label (Fold label and place it inside door)
6 
Diagnostic relay port
7 
Electrical coaxial port (“F” type connector)
8 
Transmitter optical fiber port - FPort 1 Tx (ST type connector)
9 
Receiver optical fiber port - FPort 1 Rx (ST type connector)
10 
Receiver optical fiber port - FPort 2 Rx (ST type connector)
11 
Transmitter optical fiber port - FPort 2 Tx (ST type connector)
Diagnostic Relay Port
A normally closed relay contact, rated at 220 Vac 6 A or 30 Vdc 5 A, is available on the terminals of the diagnostic relay port via its connector. This allows to use the diagnostic relay behavior in the application.
The following figure shows the 2 terminals of the diagnostic relay connector:
Electrical Coaxial Port
The 140 NRP 954 00 fiber optic repeater module is equipped 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 equipped 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 the 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.
CAUTION
CONNECTIVITY COMPLIANCE
To maintain CE compliance with the European Directive on EMC (89/336/EEC), the 140 NRP 954 00 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.
Optical Ports
The 140 NRP 954 00 fiber optic repeater module is equipped 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)).