AMX DXF-TX-MMD Instruction Manual page 25

Fiber Optic Transceiver
The Receiver's fiber optic transceiver uses either two lasers (in Bidirectional Mode) or one laser (in Unidirectional
Mode) to transmit data over fiber cable. Transceivers in Bidirectional Mode (Duplex only) transport digital video,
embedded audio, Ethernet, and control over fiber optic cable from a DXLink Fiber Output Board or from a DXLink
Fiber TX, including digitally transcoded analog video signals. Transceivers in Unidirectional Mode (Simplex default,
Duplex configurable) transport digital video and embedded audio from a DXLink Fiber Output Board or a DXLink Fiber
TX, including digitally transcoded analog signals. All transceivers support HDCP over fiber regardless of Directional
Mode. Transceivers with a black latch or black label accept multimode cable; transceivers with a blue latch or blue label
accept single mode cable.
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).
ICS LAN 10/100 Connector
The Receiver's ICS LAN 10/100 (RJ-45) connector provides Ethernet 10/100 connectivity for ingress and egress of
network access to the Receiver (all models and modes). Additionally, when part of a switching system in Bidirectional
Mode, that same connection provides Ethernet access via the Receiver's fiber port to an upstream Transmitter. Special
care should be given to enabling the ICS LAN port when connected to an Enova DGX system which is also connected to
a network to prevent creating network loops (see "Unidirectional Mode LAN Configuration" on page 60).
For pinout and LED information, see page 50.
Note: The #1 Toggle on the DIP switch must be set to ON to enable activity over this port.
RS-232 Port
The RS-232 (serial data interface) port is a 3-position screw terminal block. In Bidirectional Mode, the Receiver's
RS-232 port accepts data (originally from a source device) via a TX or DXLink Fiber Output Board and in turn transfers
the data to the destination device; transfer of data can also be made over the return path. In Unidirectional or Data Link-
lost Mode, RS-232 signals cannot be transported over the return path via the fiber port, but must be instead transported
via the ICS LAN 10/100 port (see "Unidirectional Mode LAN Configuration" on page 60).
IR RX Port
The IR RX port is used for IR control (see page 28). This port is a 3.5 mm stereo jack. In addition to being directly
connected to a device, this port can be connected as an independent native NetLinx control port from a networked
NetLinx Central Controller.
IR TX Port
The IR TX port is used for IR control (see page 28). This port is a 2-way mini-Phoenix connector. In addition to being
directly connected to a device, this port can be connected as an independent native NetLinx control port from a
networked NetLinx Central Controller.
USB Port
The USB-mini A/B port on the rear of the Receiver supports keyboard/mouse commands. In Bidirectional Mode,
transfer of data is made over the return path to the Transmitter, which supports the USB connection, to the PC (the
Transmitter can be either Fiber or can be Twisted Pair when part of a switching system). In Unidirectional or Data Link-
lost Mode, transfer of data cannot be transported over the return path via the fiber port, but instead must be transported
via the ICS LAN 10/100 port (see "Unidirectional Mode LAN Configuration" on page 60).
For USB port information, see page 23.
HDMI Out Connector
The HDMI Out connector is for digital video and embedded audio. The HDMI connector has a center screw for locking
capability. The HDMI connector also supports a DVI-D signal (via a DVI-to-HDMI cable).
Note: If a DVI-D signal is used (via a DVI-to-HDMI cable), the advanced audio support from HDMI will not be
available out the Receiver.
Stereo Audio Out Connector
The Stereo Audio Out connector is a 3.5 mm stereo jack. This connector has an analog audio signal available for output
whether the embedded audio over the fiber optic cable originated as 2 channel digital or analog stereo. If encoded digital
audio (e.g., Dolby or DTS) or multi-channel audio paths (>2 CH L-PCM) are embedded on the HDMI path, then the
local analog out will not be available.
Instruction Manual – DXLink Fiber Transmitters and Receivers
Overview DXLink Fiber
25