Enova DGX DXLink™ Fiber Boards
124
Hardware Reference Manual – Enova DGX 100 Series Digital Media Switchers
Serial Data Transfer and IR Flow Control
The illustration in FIG. 65 shows Bidirectional Mode serial data transfer and IR flow control when an Enova Digital Media Switcher
with DXLink Fiber, Duplex Boards is used with DXLink Fiber, Duplex units. The illustration also shows the video/audio signal path.
The switcher has an integrated NetLinx NX Central Control Processor which provides native AMX control at each remote location
fed by a DXLink Fiber unit. Control is sent over fiber cable (via the DXLink Fiber ports).
IMPORTANT: For Duplex hardware in Bidirectional Mode connected to an Enova Digital media Switcher, we recommend connecting
the switcher to the network for all network connection needs. Network connections via the switcher are faster and more reliable.
Never connect both a TX and RX, a TX and switcher, or a switcher and RX to the same network: Avoid network loops.
NOTE: For systems with DXLink Fiber, Simplex Boards, the return path is not available.
The illustration in FIG. 66 shows a DXLink Fiber Transmitter in Unidirectional Mode* and a DXLink Fiber Receiver in Bidirectional
Mode with a setup that allows the units IR, USB, and serial communication via LAN when the system is in Endpoint mode with an
Enova Digital Media Switcher.
* The Transmitter can either be Duplex configured for Unidirectional Mode or Simplex, which can only support Unidirectional Mode.
In either case, the fiber cable attached to the Transmitter has no data return path.
CAUTION: In a source-to-destination signal run that includes hardware in more than one Directional Mode, take precautions against
creating network loops with hardware in Bidirectional Mode (see page 117).
FIG. 65
Serial data transfer and IR flow control with Duplex hardware in Bidirectional Mode
FIG. 66 Serial data transfer and IR flow control with TX in Unidirectional Mode and RX in Bidirectional Mode
AC
DC
FLT
AC
DC
FLT
* Ethernet transports
IR, Serial, and/or USB
DXLink Fiber RX
Enova DGX 1600
AV signal
AV signal
DXLink Fiber TX
Ethernet* over
Fiber optic cable
Ethernet* over
Fiber optic cable
Independent
Network Connection
Ethernet**
AC
DC
FLT
AC
DC
FLT
** Ethernet transports
IR, Serial, and/or USB
Ethernet** over
Fiber optic cable
DXLink Fiber RX
(Unidirectional Mode)
DXLink Fiber TX
(Unidirectional Mode)
Enova DGX 1600
AV signal
AV signal
IMPORTANT: The fiber cable attached to the TX only
handles signals in Unidirectional Mode. The return
fiber path is disabled.
Ethernet**
Fiber optic cable
LAN
Local Area Network
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