Leaf LT2020E User manual

LT2020E

Leaf LT2020E manual
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Document Status
Client:
Nexus
Status:
Controlled external release
Authorised by:
AFG
Comment Closure Date:
Revision History
Version
Date
Changes
1
26/9/12
Original release
2
20/11/12
Update.
3
4
5
NOTE:
During initial set up and during any changes to the
installation, please switch off and unplug mains power
(from this system and any equipment that is to be
connected to it) prior to connecting any leads / cables.
Plug in and switch power back on again after all
interconnection leads are in place.
Do not run HDBaseT / Zone Cat5e/6/6a cabling with or
in close parallel proximity to mains power cables.
Do not connect any part of this equipment to Power
Over Ethernet devices. Damage may result.
During operation the Leaf LT2020E and associated
LTB1E breakouts may feel hot to the touch. This is
quite normal. Please ensure that these items have
sufficient cool air flow around them.

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Table of Contents
1INTRODUCING THE LEAF TRUE LT2020E MATRIX SYSTEM................4
1.1 Overview...........................................................................................................................4
2FRONT PANEL LAYOUT............................................................................5
2.1 HDBase T Connections...................................................................................................5
2.2 Ethernet Ports..................................................................................................................6
2.3 Front Panel Touch screen ..............................................................................................6
3REAR PANEL LAYOUT:.............................................................................7
3.1 RJ12 control port.............................................................................................................8
3.2 4 way DIP switch module................................................................................................8
3.3 Digital Coax (S/PDIF) audio inputs:...............................................................................8
3.4 Stereo RCA analog outputs............................................................................................8
3.5 3.5mm –(1/8 inch) IR ports............................................................................................9
3.6 RJ45 type “RS232 through” ports ...............................................................................10
3.7 4 pin DIN power connector...........................................................................................10
3.8 RS232 Serial Control connectors ................................................................................11
3.8.1 Single LT2020E use................................................................................................11
3.8.2 Multiple LT2020E use .............................................................................................11
3.9 RS232 Termination (TERM) Switch..............................................................................11
3.10 HDMI Input ports............................................................................................................11
4BREAKOUTS............................................................................................12
4.1 Local Power ...................................................................................................................12
4.2 Mounting Bracket ..........................................................................................................12
4.3 Status LEDs ...................................................................................................................13
5SYSTEM FEATURES................................................................................14
5.1 EDID Management.........................................................................................................14
5.2 Calibration......................................................................................................................14
5.3 Exclusive Source Selection (Zone Lock mode) .........................................................14
5.4 Audio Only Source ........................................................................................................15
5.5 Flexible Audio Routing .................................................................................................15
5.6 Audio Sync Delay..........................................................................................................15
6OPERATION .............................................................................................16
6.1 Apply Power...................................................................................................................16
6.2 Calibration......................................................................................................................16
6.3 Creating input to output switched selections ............................................................16
6.4 Clear all switched selections / Global OFF.................................................................16

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1 Introducing the Leaf True LT2020E Matrix
system
1.1 Overview
The Leaf True HDMI Matrix System comprises a Leaf LT2020E interface unit and Leaf
LTB1E breakouts. The Leaf True HDMI Matrix system is designed to accept HDMI A/V
sources at its 20 inputs and route them to up to 16 remotely located breakouts and up
to 4 local HDMI outputs. In this document, each input signal source is termed a source
and each output and breakout is called a zone.
Additional features include Ethernet through feed capability, infrared (IR) control
through feed and RS232 through feed capability between the interface and breakouts.
Note that these are through feeds only and have no direct control function of the Leaf
True system.
Interconnection between a Leaf True interface and associated Leaf True breakouts is
via one single cat5e/6/6a four pair cable for each breakout. Single cat5e /6 /6a cable
interconnect between these components is made possible through the use of HDBaseT
technology. This technology enables Video and Audio, as well as Ethernet, IR, and
RS232 through feed to be all sent by a single cable per zone over large distances.
Cabling specifications and information can be found in supplementary documentation.
The Leaf True system is designed to be controlled via RS232 commands from 3rd party
control systems. Control of basic switching functions can be (also or instead) achieved
via a proprietary Leaf controller such as the Leaf TC3 connected by 6 wire Telco cable
and RJ12 (6P6C) modular connectors.
Manual control of the basic switching functions can be also be achieved by the use of
a front panel mounted touch screen on the LT2020E.
The LT2020E is built into a 3RUrack-mountable metal housing and is provided with
rubber feet should table / desktop mounting be preferred.
Leaf True LTB1E
Leaf True LT2020E

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2 Front Panel Layout
The LT2020E front panel is fitted with connectors, visual indicators and control
devices as depicted below.
1. 16 x HDBase T RJ45 type ports labelled HDBaseT outputs for connection to the
zone breakouts (LTB1E)
2. 16 x ethernet RJ45 type ports for connection of optional ethernet equipment
3. A Touch Screen control panel
2.1 HDBase T Connections
Each Leaf True breakout is connected to the interface by way of a single Cat5e/6/6a
four pair cable to the HDBaseT output or zone ports across the lower part of the front
panel.
LT2020E front panel
1
3
2

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2.2 Ethernet Ports
The Ethernet ports across the upper part of the front panel of LT2020E are for optional
connection of Ethernet facilities for direct routing to remote Ethernet ports at each
LTB1E breakout.
The Ethernet connection is 100Base-T full duplex. An external Ethernet router / switch
may be added for added flexibility and performance.
The Orange LED on the Ethernet ports indicate handshake between the LT2020E and
host Ethernet devices to which it is connected, but does not necessarily indicate data
flow from end to end.
2.3 Front Panel Touch screen
Details of the front panel touch screen and its operation are yet to be finalised as of
the date this manual was prepared..

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3 Rear panel layout:
The LT2020E rear panel has the following fittings as depicted below.
1. 1 x RS232 serial control input connector
2. 1 x RS232 serial control out (loop thru) connector
3. 16 x RCA S/PDIF (digital coax) audio input sockets
4. 16 x pairs of RCA line level stereo output sockets
5. 16 x RJ45 type RS232 serial data ports
6. 16 x 3.5mm Tip Ring Sleeve sockets for connection of IR devices
7. 1 x 4 pin DIN Power connector receptacle
8. 1 x RJ12 type Leaf Control input port
9. 1 x RS232 Terminate switch
10.1 x 4 way Dip Switch module
11.20 x HDMI Input or source ports.
12.4 x local HDMI output ports.
12
11
10
1
2
1
3
4
5
6
7
8
9

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3.1 RJ12 control port
The 6 wire RJ12 port enables the LT2020E to be controlled by a proprietary
LEAF controller such as the TC3.
3.2 4 way DIP switch module
The rear panel accessible 4 position DIP switch controls functionality of the LT2020E.
The table below summarizes the settings: The individual switches are labelled with
their switch number and ON –OFF position.
NOTE: The interface will only read the DIP switch settings on power-up. The unit must
be powered off and then back on again for it to respond to any change of the DIP
switch settings.
DIP SWITCH
OFF (UP)
ON (down)
1
Global IR direction IN
IR RX detectors at LTB1E
breakouts
IR TX blasters at LT2020E
Global IR direction OUT
IR RX detectors or devices at
LT2020E
IR TX blasters at LTB1E breakouts
2
IR Input device type
(Applies when DIP 1 =ON)
IR RX detectors (e.g. Leaf
Hammerhead) at
LT2020E
IR Input device type
(Applies when DIP 1 =ON)
IR direct drive from control
system* (5 volt only) at LT2020E
*Must connect IR IN with a stereo
(tip,ring,sleeve) lead / modified
stereo lead or Mono lead with
suitable adaptor.(Ref: sect 3.5)
3
Normal Mode
Compatibility Mode
4
Future Function
Future Function
Table 1: Dip Switch Settings
3.3 Digital Coax (S/PDIF) audio inputs:
The upper row of RCA sockets 1 to 16 are configured as digital coax (S/PDIF) stereo
audio input ports. They can be used as either alternative audio inputs (selectable with
discrete Audio Only commands) or the input points for audio only sources.
3.4 Stereo RCA analog outputs
The lower 2 rows of RCA sockets 1-16 are configured as stereo analog audio outputs
for connection to local devices such as centralised external amplifiers.
The source audio for these outputs can be either an HDMI input source, digital coax
(S/PDIF) stereo connector input or audio return from a zone breakout input.
The RCA outputs may be routed manually or automatically (the default).
With automatic routing active, the RCA audio outputs will follow the zone audio output
of the same number. (example: If zone 4 is selected to source 2, then in automatic
mode the RCA audio will also come from source 2).

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When a manual RCA audio output routing command is sent it will override this
automatic function for that output. When this output is switched off using a manual
audio command, automatic mode will be re-activated for that output.
Selectable audio sync delay is also available independently on these audio output ports
(ref: Audio Sync Delay).
3.5 3.5mm –(1/8 inch) IR ports
The 3.5mm (1/8 inch) Remote IR connectors are used for routing external IR control
signals in one direction between the LT2020E and the connected LTB1E breakouts.
These connections are treated as through connections. That is, IR port 1 connects to
the breakout connected to Zone 1, through to port 16 being connected to the breakout
at Zone 16.
The IR ports support direct connection and drive of Leaf “hammerhead” and other
compatible 5 volt, 3 wire (Tip Ring Sleeve / stereo plug) IR detectors to Leaf LB41 and
other compatible 2 wire (mono plug) IR blasters.
The system wide operating direction of the IR detectors and blasters (either Hub to
Zones or Zones to Hub) is configurable by DIP Switch 1.
If the IR Direction is set to “Hub to Zones” by DIP switch 1 (ON/ down), the IR ports on
the LT2020E can be further configured by DIP Switch 2 to accept direct IR drive from
an external control system or similar instead of stand-alone IR detectors.
(See table 1 for DIP switch configuration details.)
For this configuration, the IR leads from the control system to the Leaf LT2020E need
to be 3.5mm (1/8 inch) Stereo (Tip Ring Sleeve) leads or Mono (Tip Sleeve) leads
fitted with suitable adaptors at the Leaf LT2020E end. For IR connection from Control4,
standard stereo leads may be used. Other control systems may require the “Ring”
connection of these leads at the LT2020E end to be left “floating”, “not connected”, or
connected to “Tip”. This can also be achieved by the use of suitable adaptors.
Suitable adaptors for either purpose would be a “mono 3.5mm (1/8inch) jack (socket)
to stereo 3.5mm (1/8inch) plug adaptors”, connected at the Leaf LT2020E end of each
IR lead from the control system. Adaptors which appear to be suitable include: Radio
Shack 274-374, and Altronics P0340.
If the IR input type is set to IR RX detector (DIP Switch 2 OFF/up):
then the IR output will be automatically modulated at 38Khz.
If the IR input type is set to IR direct drive (DIP switch 1:ON/down & DIP switch 2
ON/down):
then the received IR input will be directly passed through to the IR output.
Any external IR drive voltage should not exceed 5V.

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3.6 RJ45 type “RS232 through” ports
The LEAF True system provides a bi-directional, full duplex “RS232 through” capability
between the LT2020E and each of the connected LTB1E Breakouts through specific
RJ45 connectors. These are for optional use by external RS232 equipment.
Connection from these ports to RS232 equipment would typically be achieved through
the use of RJ45 to DB9 RS232 adaptor leads. Leaf Audio has suitable RJ45 to RS232
(DB9) Female adaptor leads (LT45DB9Female) available for sale. Male DB9 RS232
connection may require the additional of M-M gender bender(s).
For convenience the pinouts of the RJ45 type “RS232 through” ports is shown below.
3.7 4 pin DIN power connector
The LT2020E requires 4 Pin 12V power.
WARNING. Failure to use the correct power supply as provided by Leaf Audio
may result in incorrect operation and / or damage to the Leaf True Matrix system.
The power supply is fitted with a locking connector. Be sure to slide back the
locking sleeve on the plug before attempting to connect or disconnect it at
the LT2020E. Flat Side UP is the correct orientation.
RJ45 type “RS232 Through” port(s)
receptacle (Front view)
At LTHDMI1616
/LTHDMI2020E E
At LTB1 / LTB1E (Breakouts)
Spring loaded
locking sleeve
Slide back to
release
Flat side
UP

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3.8 RS232 Serial Control connectors
The unit can be controlled by serial commands through the RS232 input port. Typically
this would be connected to a control system with a straight through DB9 Male to
Female RS232 lead. Some control systems may require only the TxD, RxD and Gnd
wires of an RS232 lead to be connected. The pin configurations of these 3 connections
on the DB9 plug is: TxD = Pin 2, RxD = Pin3, Gnd = Pin5.
3.8.1 Single LT2020E use
The RS232 Input port is used for controlling the unit.
The TERM (Termination) switch (ref: para 3.10) must be set to ON (Up).
3.8.2 Multiple LT2020E use
Multiple units can be chained together and addressed on the same RS232 link
by connecting the RS232 thru (out) port on one unit to the RS232 input port of
the next unit.
The last unit in the chain must have the TERM (Termination) switch (ref:para 3.10)
set to ON (Up), while all other units in the chain must have this switch set to OFF
(Down). The RS232 Input port is used for controlling the units.
3.9 RS232 Termination (TERM) Switch
The RS232 termination switch must be used to correctly terminate any RS232 control
connection as described in paragraphs 3.8.1 and 3.8.2.
3.10HDMI Input ports
Standard HDMI input ports are provided for the purpose of connecting HDMI sources.
They are labelled 1 to 20.
All Leaf True systems accord with the HDMI 1.4 specification and includes support of
3D formats.

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4 BREAKOUTS
A Breakout is the “receiving end” of the Leaf True system and one is required for each
connected HDBaseT “zone” of the Leaf True system.
The Leaf LTB1E is the required breakout for this system.
4.1 Local Power
Each breakout (LTB1E) is required to be powered by its own (local) power supply and
to be connected via a Cat5e/ Cat6 / Cat6a four pair cable link from its HDBaseT port
to the associated HDBaseT port on the LT2020E. Use only the power supplies that are
provided by Leaf Audio for this purpose.
4.2 Mounting Bracket
Each LTB1E is supplied with a mounting bracket which is designed to be attached to
the mounting surface and have the breakout clipped to it.

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4.3 Status LEDs
A set of 3 Status LEDs are visible through apertures in the right hand side of the
LTB1E.
The Status LEDs operations are:
LED 1 FLASHING (heartbeat) = The local 12V DC power supply is
connected and active.
LED 2 ON = The HDBaseT Cat5e / Cat6 cable link to the LT2020E has
been made successfully and is ready for video.
LED 3 ON = Protected (HDCP) video content is being transferred on the
HDBaseT link.
FLASHING = Non protected (no HDCP) video content is being
transferred on the HDBaseT link. Irregular flashing may indicate an
issue with the video link.
OFF = No video content is being transferred.
(Usually means that no source has been selected for that zone).
LEDs 3, 2, 1.

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5 SYSTEM FEATURES
5.1 EDID Management
The Extended Display Identification Data (EDID) of all sinks (TVs, Display Panels, etc)
attached to a zone are merged and presented to the source. This ensures that the
source outputs the correct audio and video format to all sinks .
When a sink is switched to a source the LT2020E remembers its EDID. After a
calibration, or each time new sinks are switched, the combination or merge of this sink
EDID and previously switched sink EDIDs is calculated and stored for use thereafter
until power off or recalibration.
This guarantees true repeater functionality while minimising interruption to active TVs
or Display panels when selecting sources.
5.2 Calibration
This process effectively gathers all of the information from the source and sink devices
(EDID and HDCP keys data) and pre-calculates the EDID merging and HDCP key list.
This results in faster switching times and isolates the effect on one zone from another
zone when new connections are routed. Calibration can be achieved manually via the
touch screen or under serial control of a connected control system. Ref: sect 6.2.
5.3 Exclusive Source Selection (Zone Lock mode)
A source can be locked to a particular zone. The exclusive source selection feature
enables enhanced features, such as multichannel audio, 3D etc, to become active
in the locked zone (if supported by both the source and zone equipment) –even if
other zones in the system do not support these features.
This feature is activated by RS232 command.
Any one zone can be locked to a desired source thus creating a so-called
“locked connection”.
Effectively this feature overrides the system merged EDID for this connection
and allows the unique EDID for the zone to be passed through to the source. A
typical example would be switching a 3D-capable zone to a 3D-capable source
in instances where not all zones in the system can support 3D.
No other zone can connect to a source that is locked.
Multiple locked connections are allowed but locked sources cannot be shared.
When the zone of a locked connection is disconnected the source is unlocked
and available for selection by other sources.
When the zone of a locked connection changes to a new source the existing
source is unlocked.
When a global command is sent then the existing source is unlocked
Locking a zone to a source that is already switched to one or more other zones
will cause that source to disconnect from those zones.

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5.4 Audio Only Source
Any of inputs 1 to 16 can be set up as an audio only source by connecting a desired
stereo (S/PDIF) digital audio source to a nominated digital coax (S/PDIF) RCA socket
(1 to 16) and leaving the associated HDMI input port vacant. The audio only source can
then be selected as per normal (source selection 1 to 16) and will transmit the selected
audio together with a “black” video signal.
5.5 Flexible Audio Routing
Flexible audio routing within the system allows audio from:
HDMI sources (1-20)
Digital Coax (S/PDIF) (1-16) audio input connectors on the LTB1E Breakouts
Digital Coax (S/PDIF) (up to 16) audio input connectors on the LT2020E
to be routed to the Stereo RCA analog output connectors on the LT2020E.
The source range for the selected audio inputs under this feature becomes:
HDMI input ports: 1 to 20
LTB1E Breakouts: 21 to
37 LT2020E: 41 to 56
This feature is activated by specific RS232 commands. Refer to separate
documentation for further detail.
[notes: If Multichannel Audio is selected as the source for the RCA analog outputs then
that output will be muted. S/PDIF audio performance from LTB1E breakouts may be
unreliable in instances where the Cat5e / Cat6 / Cat6a four pair cabling to them
exceeds approximately 50 metres or is subjected to electrical interference.]
5.6 Audio Sync Delay
Each pair of stereo RCA audio output ports has programmable audio sync delay
capability which may be useful to bring the audio from these ports and the displayed
video closer to synchronism. This feature is activated by specific RS232 commands.
Refer to separate documentation for further detail.

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6 Operation
6.1 Apply Power
Once power is applied to the LT2020E it will go through a Power Up routine
lasting a minute or two.
When this routine is completed the unit will reconnect the most recent state (Source –
Zone selection or standby)
6.2 Calibration
The system should be calibrated on first use or after any new devices (source or
zone equipment) are added or port allocations changed. Failure to correctly
calibrate a system may lead to interruption to audio and video at zones when
other zones are switched to a source that is already in use.
The system may be calibrated under RS232 control or manually by following
these steps.
1. Turn on all sources and zone equipment (AV receiver or TV). Ensure that
zone equipment (AV receivers, TV’s etc) are set to the correct HDMI input.
2. Calibrate the system by following the touch screen menu. When calibration
commences, each source will be temporally switched to each zone in
sequence until all switched combinations are exhausted. This process may
take a few minutes.
3. The system will then return to its previous state.
6.3 Creating input to output switched selections
While this would typically be performed by RS232 commands from your control system,
basic selections may also be performed manually at the touch screen.
6.4 Clear all switched selections / Global OFF
While this would typically be performed by RS232 commands from your control system,
it may also be performed manually from the touch screen.

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LT2020E: MAIN MATRIX UNIT
FEATURE
SPECIFICATION
1
INPUTS: DIGITAL-AUDIO/VIDEO
(20x) HDMI inputs
VIDEO FORMATS:
480p,576p,720p50/60,1080i50/60,1080p50/60,HDMI1.
4 Mandatory 3D formats as a minimum.DVI formats.
AUDIO FORMATS:
LPCM,AC3,DTS,DD+,DTS-HD (in Multichannel mode)
2
ETHERNET PORTS.
(16x) ETHERNET INPUTS
100Base-Tx full-duplex Ethernet on all ports
3
OUTPUTS: HDBaseT
(16x) HDBase-T Outputs Uncompressed HD video -
Supports all formats as in item 1.
One cable carries: Video, Audio, Ethernet, IR, RS232.
4
OUTPUTS: LOCAL AUDIO
(16x) 2Ch RCA ANALOG OUTPUTS
FORMAT: Analog Stereo. Programmable audio delay
Sources for these audio outputs may be routed
independently from HDMI inputs, remote (breakout) or
local SPDIF inputs.
INPUTS: LOCAL AUDIO
(16X) S/PDIF INPUTS
5
SYSTEM CONTROL
(1x) RJ12 Leaf Proprietary Remote control
(1x) RS232 DB9 IN
(1x) RS232 DB9 LOOPOUT
Bank select and termination selectors.
6
INFRA RED REMOTE CONTROL
THROUGHPUT ONLY
(No direct control by IR)
(16x) DIRECTIONAL IR INPUTs. Support for: Direct IR,
IR TX Bug, IR RX Bug. Modulated 38Khz and Envelope.
(16x) RJ45 RS-232 PORT for remote control to
breakouts. Up to 115200 Baud.
7
DISPLAY/CONTROL
Front Panel Touch Screen, enables basic selection and
display of the connections within the matrix.
8
PHYSICAL LAYOUT
RACK MOUNTABLE (3RU)
REMOTE ETHERNET AND HDBaseT RJ45s, AND TOUCH
SCREEN AT FRONT
ALL OTHER CONNECTORS AT REAR
RJ12 FOR CONNECTION TO LEAF CONTROLLER
USER INTERFACE (BASIC): TOUCHSCREEN PANEL.
STANDARD RACK EARS AND FEET INCLUDED.
9
NUMBER OF INPUTS/OUTPUT
20 /16
10
EXPANDABILITY
Bank Select Switch and Audio Breakaway
11
POWER
60W 5A 12V DC. Consumption depends on resolution
of distributed video and features enabled.
120W supply included –Use Leaf Audio supply only.
12
DIMENSIONS (W, D, H)
418(484 incl rack ears) x 290mm, x 133mm(147mm incl
feet)

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LTHDMI2020E
Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the
FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not
occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be
determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the
following measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.
Modifications not expressly approved by the manufacturer could void the user's authority to operated the equipment under FCC
rules.
LTB1E: BREAKOUT
FEATURE
SPECIFICATION
1
INPUTS: MAIN A/V
(1x) HDBase-T Input . See LT2020E for further
specification.
2
OUTPUTS: AUDIO/VIDEO
(1x) HDMI output
3
INPUT: AUDIO
(1X) Digital coax (S/PDIF) via RCA socket
Audio return from RCA socket specification:
Range: ~50 metres. Less if subjected to electrical
interference, cable type, power supplies used etc.
4
OUTPUTS: ETHERNET
(1x) ETHERNET OUTPUT
5
OUTPUTS:RS232
(1x) RS-232 PORT (BLACK RJ45 CONNECTOR) Up to 115200
Baud.
6
OUTPUT: IR THROUGHPUT
IR LED DRIVER 38KHz... OR... IR INPUT. (Selected by main
unit). 3.5mm TRS female connector
7
NUMBER OF INPUTS/OUTPUT
1/1
8
POWER
Local power required 12W (1A @ 12V).
9
DIMENSIONS (W,D,H)
116mmx121mmx31mm(36mm with wall plate fitted)