DXLink Fiber Input & Output Boards
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Enova Digital Media Switchers - Hardware Reference Manual
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.
NOTE:
Configuring Duplex boards for secure Unidirectional Mode communication requires additional actions (see "Duplex
Hardware Directional Mode Configuration" on page 143).
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 ends of the fiber optic cable 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.
NOTE:
Configuring Duplex boards for secure Unidirectional Mode communication requires additional actions (see "Duplex
Hardware Directional Mode Configuration" on page 143).
Fiber Optic Transceivers
Fiber optic transceivers are self-contained modules that send and receive optical signals over fiber cable. DXLink SFP+
fiber optic transceivers are either multimode or single mode and must be wired with the corresponding cable type.
NOTE:
SFP+ = enhanced small form-factor pluggable fiber optic transceiver rated at 10 Gbps transmission data rate.
Board Types / Cable Types / Cable Runs
The type of DXLink Fiber Board determines the maximum length of cable runs possible. Cable quality is also a determining
factor.
All DXLink Fiber Boards are designed for transmission of an HDMI signal over fiber optic cable.
NOTE:
When powered on, Duplex transceiver LEDs are yellow and green; Simplex transceiver LEDs are blue.
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 boards require OM3 50/125
μ
m multimode fiber optic cable; maximum length 984 feet (300 m)
SM duplex boards require 9/125
μ
m single mode fiber optic cable; maximum length is 6.21 miles (10 km)
NOTE:
Instructions for attaching cable management bars are on page 63. These bars are recommended and provided
with each DXLink Fiber Board.
CAUTION:
Do not severely bend or kink the fiber optic cable. Irreversible damage can occur. Refer to the physical
limitations (bend radius) specified for the cable.
Connecting DXLink Fiber Inputs and Outputs
1.
Install cable management bars (see page 63).
NOTE:
Use soft ties (e.g., Velcro type hook-and-loop strips) instead of nylon cable ties, which can break fiber
cables.
2.
Remove the dust plugs from the DXLink SFP+ transceiver and fiber cable connectors and save for future use.
3.
Attach the fiber optic cable to the DXLink Fiber Input or Output Board’s fiber optic transceiver. Normally an audible
click is heard when the connector engages.
4.
Tie the DXLink fiber cable to the cable management bar far enough below the connector to allow for the
manufacturer’s recommended bend radius (FIG. 54).
DXLink Fiber Devices
Board Type
DGX Fiber Boards
Required Cable Type
Maximum Distance
Multimode
• DGX-I-DXF-MMD
• DGX-O-DXF-MMD
50/125
μ
m multimode fiber optic
984 ft. (300 m)
• DGX-I-DXF-MMS
• DGX-O-DXF-MMS
Single Mode
• DGX-I-DXF-SMD
• DGX-O-DXF-SMD
9/125
μ
m single mode fiber optic
6.21 miles (10 km)
• DGX-I-DXF-SMS
• DGX-O-DXF-SMS
