Siemens DataNET Hub (DNH) - Manual (Page 50)

42 •••• Installation 2000585-001
DataNET Fiber Optic Connections
All DataNET Fiber Optic uplink and downlink port connections are made
through the DataNET Fiber Optic Coupler. The coupler PC card plugs
into any of the port interface connectors to provide the same port flexibil-
ity as with copper cable connections; eight DataNET ports, one uplink
port and one Ethernet 10BaseT port for interconnecting of DataNET or
Ethernet segments.
The Fiber Optic Coupler converts between electical signals and optical
signals. The conversion is transparent to the network. Fiber Optic signals
are impervious to distubances caused by electrical interference from
nearby equipment, ground loops, power surges, or a nearby lightning
strikes.
A DataNET Fiber Optics Coupler can drive up to 5000 feet of fiber optic
cable.
1. The wiring method (conduit or cable glands) and cable type you use
for the installation is dependent upon the site requirements. Review
the Site Wiring Requirements (page 19) to determine the require-
ments for your site.
2. Refer to Figure 2-1, Communication Board Layout and Figure 2-3.
Wiring Diagram and familiarize yourself with the port locations.
All uplink connections are made to UPLINK port connector and all down
link connections are made to any of the eight single port connectors; see
Figures 2-3.
The DataNET Fiber Optic Couplers uses twist and lock connectors.
Always insure that the TX out on one end of the link is connected to the
RX in at the other end of the link. Some duplex fiber optic cables are
coded to help monitor the direction of data travel. If the fibers are not
coded, special attention must be paid to insure a proper connection.
Always ensure that the same port number is used for redundant channel
connections i.e. Channel A to Port 1 on ‘A’ Hub and Channel B to Port 1
on ‘B’ hub.
Description
DataNET Fiber Optic
Coupler
Before You Begin
RX & TX Connections
+ Important