Instruction manual

Installation and Setup
53
Instruction Manual – DXLink Fiber™ Transmitters and Receivers, Duplex
Downloading Firmware State and LED Behavior
To monitor the state of a TX or an RX by its LEDs when downloading firmware, check both the Link/Act and Status
LED columns.
DXLink Fiber TX – Local Out (HDMI) Port
The Local Out port on the right front of the DXLink Fiber Transmitters can be used to send the source signal to a local
monitor.
DXLink Fiber TX/RX in a Multiple-Stage Switching System
When switching systems with DXLink Fiber Technology support (e.g., an Enova DGX 16 Digital Media Switcher) are
connected via their fiber optic transceivers, DXLink Fiber Transmitters and Receivers can be used to extend the video
and audio transport.
Important: This section does not
refer to the linking of enclosures using the RJ-45 ports on the left of the
CPU boards (the Enova DGX Digital Media Switcher does not
support CPU to CPU linking).
In an installation with DXLink Fiber equipment in a multiple-stage switching system, the following apply:
When two switching systems with DXLink Fiber support are connected via their fiber optic transceivers, only
video and audio will be passed through the fiber connection.
When a fiber optic transceiver on one switching system determines that it is connected to a fiber optic
transceiver on another switching system, the transceiver will automatically disable all Ethernet, power, and
control on that connection port so that the only things passed down the fiber optic cable are the video and
audio signals.
When connecting switching systems via fiber optic transceivers, AMX recommends no more than
three switcher throughputs (see the “Example” on the next page).
Example
This example shows how DXLink Fiber Transmitters and Receivers can be used in a system where switchers are
connected via their fiber optic transceivers.
The signal path through three switchers could be:
Source device sends signal
 DXLink Fiber Transmitter  Enova DGX 8, DXLink Fiber Input Board (out a
DXLink Fiber Output Board)
 Enova DGX 16, DXLink Fiber Input Board (out a DXLink Fiber Output Board) 
Enova DGX 32
, DXLink Fiber Input Board (out a DXLink Fiber Output Board)  DXLink Fiber Receiver  display
device outputs an HDMI signal.
NetLinx LED Behavior when Downloading Firmware
Downloading Firmware Link/Act LED Status LED
Downloading firmware to flash due to
an upgrade via NetLinx Studio.
Fast blink, alternating with Status LED Fast blink, alternating with Link/Act LED