Installation and Setup
48
Instruction Manual – DXLink Fiber Transmitters and Receivers
Fiber Optic Cable Requirements
Fiber Optic Cable Requirements
Fiber optic cable with LC termination for snap coupling with SFP+ transceivers
Cable with LC Duplex connectors conforming to ANSI TIA-EIA 604-10 (FOCIS 10A)
MM duplex units require OM3 50/125
μ
m multimode fiber optic cable; maximum length 984 feet (300 m)
SM duplex units require 9/125
μ
m single mode fiber optic cable; maximum length is 6.21 miles (10 km)
Important:
Be sure to follow the fiber optic cable manufacturer’s recommendations.
Tip:
Multimode transceivers only – If you are unsure that a multimode transceiver is passing a signal, hold the
unattached end of the fiber optic cable
away from you
and take a picture of it with a digital camera (or cell
phone camera). The image will show a bright light if signal is being passed (works on some digital cameras).
Fiber Optic Cable Wiring for Bidirectional Mode – Duplex Only (Default)
When wiring fiber optic cable for bidirectional full system capabilities, a dual set of fiber optic cables is used to wire
from a DXLink Fiber Transmitter to a DXLink Fiber Input Board and another dual set of fiber optic cables from a
DXLink Fiber Output Board to a DXLink Fiber Receiver (or directly from TX to RX). This wiring provides not only
video and audio but Ethernet, IR, serial, and USB functionality as well.
Fiber Optic Cable Wiring for Unidirectional Mode – Simplex (Default) or Duplex (Configurable)
When wiring fiber optic cable for secure unidirectional system capabilities, a single fiber optic cable is used to wire from
a DXLink Fiber Transmitter to a DXLink Fiber Input Board and another single fiber optic cable from a DXLink Fiber
Output Board to a DXLink Fiber Receiver (or directly from TX to RX). This wiring provides video and audio only.
Fiber Optic Cable Wiring for Data Link-lost Mode – Duplex Only
When a DXLink Fiber Duplex cable run in Bidirectional Mode has one or both of the fiber optic cables on the return
path removed, the system automatically drops into Data Link-lost Mode. In Data Link-lost Mode, video and audio
continue to flow from source to destination, but network and control no longer transmit over the fiber optic path.
Restoring the cable(s) on the return path moves the system back into Bidirectional Mode. Configuring the system for
secure Unidirectional Mode communication requires additional actions (see “Duplex Hardware Directional Mode
Configuration” on page 56).
Warning:
DXLink Fiber units use laser transceivers, which are Class 1 Eye Safe per IEC 60825-1/CDRH
requirements. While the Class 1 category indicates that the invisible laser used is safe, we recommend
avoiding direct eye exposure when using any optical fiber products (see the OSHA directive on page 15).
Caution:
Do not severely bend or kink the fiber optic cable. Irreversible damage can occur. Refer to the
physical limitations (bend radius) specified by the cable manufacturer.
