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