Siemens DataNET Hub (DNH) user manual DataNET Fiber Optic Connections, DataNET Fiber Optic Coupler

DataNET Fiber Optic Connections

Description	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.

DataNET Fiber Optic Coupler

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.

Before You Begin

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.

RX & TX Connections	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.
+ Important	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.

42 • Installation 2000585-001