Product Overview and Specifications
14
Hardware Reference Manual – DXLink™ Twisted Pair Transmitters/Receiver
HDMI TX Rear View (product discontinued)
NOTE:
The DX-TX and HDMI TX each have a DIP switch on the bottom (see page 17).
The following components are located on the rear of DX-TX and HDMI TX Modules (from left to right):
Video In Connector
(DX-TX only) – The Video In connector on the DX-TX is an HD-15 connector for analog video
(composite, Y/C, Y/Pb/Pr, RGB, RGBHV, or RGBS). Pinouts for analog video are on page 105.
NOTE:
When an analog video source cable is plugged into the DX-TX, the Video LEDs on the front and on the Receiver turn green
to show that video is present through the system. In addition, one of the Analog Video LEDs on the front of the DX-TX and the DX-
RX turns green to show the type of video that is present through the system.
HDMI In Connector
– The HDMI In connector is for digital video and embedded digital audio. When more than one audio
signal is present and the default “auto” mode is enabled, HDMI embedded audio takes precedence over S/PDIF and analog
audio.
When a NetLinx Central Controller is connected, an audio format SEND_COMMAND is available (the Transmitter
must
be set
for network connectivity via #3 Toggle) to select the desired audio source (see page 72).
The HDMI connector has a center screw for locking capability. The HDMI connector also supports a DVI-D signal with the
use of a DVI-to-HDMI cable adapter.
NOTE:
When a digital video source cable is plugged into the HDMI connector, the Video LEDs on the front of the DX-TX or
HDMI TX and Receiver turn green to show that video is present through the system.
Stereo Audio In Jack
– The Stereo Audio In jack is a 3.5 mm stereo jack. By default, the stereo audio jack will be third in
priority behind the embedded audio on the HDMI input and digital audio on the RCA connector.
When a NetLinx Central Controller is connected, an audio format SEND_COMMAND is available (the Transmitter
must
be set
for network connectivity via #3 Toggle) to select the desired audio source (see page 72).
Digital Audio In Jack
– The Digital Audio In jack is an RCA jack for an S/PDIF audio signal. When more than one audio signal
is present and the default “auto” mode is enabled, HDMI embedded audio takes precedence over S/PDIF, which takes
precedence over analog audio.
When a NetLinx Central Controller is connected, an audio format SEND_COMMAND is available (the Transmitter
must
be set
for network connectivity via #3 Toggle) to select the desired audio source (see page 72).
ICS LAN 10/100 Connector
– The ICS LAN 10/100 (RJ-45) connector provides for Ethernet 10/100 connectivity (e.g.,
receiving SEND_COMMANDs and downloading firmware update files). For pinout and LED information, see page 39.
RS-232 (Serial) Port
– The RS-232 port (serial data interface) is a 3-position screw terminal block which accepts data from
the source device and transfers it via the twisted pair cable to the DX-RX, which in turn transfers the data to the destination
device. The transfer of data can also be made from the destination to the source. 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 RX Port
– The IR RX port is used for IR control (see page 19). 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 19). 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-B port on the rear of the DX-TX and HDMI TX is connected to a PC and supports a USB device. This is
the Host port that is used in conjunction with the USB-A port on the rear of the DX-RX for sending keyboard / mouse
commands to a connected PC at the Transmitter. (For USB port information, see page 18.)
DXLink Output Connector
– The DXLink (RJ-45) connectors transport digital video, embedded audio, Ethernet, and
bidirectional control over twisted pair cable to DXLink devices or boards (or an DX-RX), including digitally transcoded
analog video signals. The DXLink path supports HDCP. The DXLink line also supports power from an Enova DGX Switcher
and from some Enova DVX Solutions to power the module. For pinout and LED information, see page 39.
Ground Screw
– The ground screw is used for creating a technical ground for the ungrounded sources/destinations with
respect to the DXLink Transmitters/Receivers and switcher (see page 37).
FIG. 6
HDMI TX rear view
IR ports
RS-232 port
HDMI In connector
Stereo Audio In jack
USB port
ICS LAN 10/100 connector
Power jack
DXLink output connector
Digital Audio In jack
Ground screw
