Overview DXLink Fiber
22
Instruction Manual – DXLink Fiber Transmitters and Receivers
Note:
Configuration of Ethernet, IR, RS-232, and USB for units in Unidirectional Mode or Data Link-lost Mode
requires additional information found in “Unidirectional Mode LAN Configuration” on page 60.
ICS LAN 10/100 Connector
The Transmitter’s ICS LAN 10/100 (RJ-45) connector provides Ethernet 10/100 connectivity for ingress and egress of
network access to the Transmitter (all models). Additionally, when in Bidirectional Mode, that same connection provides
Ethernet access via the Transmitter’s fiber port to a downstream Receiver. 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 (Serial) Port
The RS-232 serial data interface port is a 3-position screw terminal block. In Bidirectional Mode, the Transmitter’s
RS-232 port accepts data from a source device and transfers it via the Transmitter’s fiber port to a downstream Receiver,
which 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 via the Transmitter’s 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 “Host” port on the rear of the TX connects to a PC. The Host port forwards HID keyboard and
mouse data received from a directed DXLink Receiver’s USB port (the Receiver can be either Fiber or Twisted Pair). In
Bidirectional Mode, the Transmitter receives USB signals via the Transmitter’s fiber port from a connected Receiver. In
Unidirectional or Data Link-lost Mode, USB signals cannot be transported via the Transmitter’s fiber port, but must be
instead transported via the ICS LAN 10/100 port (see “Unidirectional Mode LAN Configuration” on page 60).
For USB port information, see page 23.
Note:
Because the keyboard and mouse capability is unidirectional in nature, functionality requiring return
data paths (such as keyboard lights indicating NUM LOCK or CAPS LOCK status on a keyboard) will not
function.
Fiber Optic Transceiver
The Transmitter’s fiber optic transceiver uses either two lasers (in Bidirectional Mode) or one laser (in Unidirectional
Mode) to transmit data over fiber optic cable. Transceivers in Bidirectional Mode (Duplex only) transport digital video,
embedded audio, Ethernet, and control over fiber optic cable to a DXLink Fiber Input Board or to a DXLink Fiber RX,
including digitally transcoded analog video signals. Transceivers in Unidirectional Mode (Simplex default, Duplex
configurable) transport digital video and embedded audio to a DXLink Fiber Input Board or to a DXLink Fiber RX,
including digitally transcoded analog video 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).
