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Leaf LT88 / LT88E manual 

 

Page  4 

Of  22 

 

1  Introducing the Leaf True Video Matrix system 

1.1  Overview 

The Leaf True HDMI Matrix System comprises a Leaf 

LT88

 or 

LT88E

 interface unit and 

Leaf 

LTB1

  or 

LTB1E

  breakouts.  The  Leaf  True  Video  Matrix  system  is  designed  to 

accept HDMI A/V sources at its inputs and route them to remotely located breakouts. In 
this  document,  each  input  signal  source  is  termed  a 

source 

and  each  output  and 

breakout is called a 

zone.

 

Additional features include  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.  

There are 2 model variants: 

LT88 interface with LTB1 breakouts  and 

LT88E interface with LTB1E breakouts. 

Whilst both model variants provide the routing and control features, the LT88E extends 
this by providing Ethernet through feed  capability.  The LT88E has additional circuitry 
and  dedicated  RJ45  type  ports  on  its  front  panel  that  connect  to  matching  Ethernet 
ports at LTB1E breakouts. 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Interconnection between a Leaf True interface and  associated Leaf True breakouts is 
via  one  single  cat5e/6  cable  for  each  breakout.  Single  cat5e  /6  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 3

rd

 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.   

Leaf True LT88 

Leaf True LTB1 

Leaf True LTB1E 

Leaf True LT88E 

Summary of Contents for Leaf True LT88

Page 1: ...8 X 8 Video Matrix Systems LT88 LT88E...

Page 2: ...tion 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 int...

Page 3: ...1 Single LT88 E use 10 3 8 2 Multiple LT88 E use 10 3 9 Bank Select Switch 11 3 10 RS232 Termination TERM Switch 11 3 11 HDMI Input ports 11 4 BREAKOUTS 12 4 1 Local Power 12 4 2 Mounting Bracket 12...

Page 4: ...ures the LT88E extends this by providing Ethernet through feed capability The LT88E has additional circuitry and dedicated RJ45 type ports on its front panel that connect to matching Ethernet ports at...

Page 5: ...e metal housings and are provided with rubber feet should table desktop mounting be preferred 2 Front Panel Layout The LT88 and LT88E front panels are fitted with connectors visual indicators and cont...

Page 6: ...Ethernet ports indicate handshake between the LT88E and host Ethernet devices to which it is connected but does not necessarily indicate data flow from end to end 2 3 Front Panel LED display and selec...

Page 7: ...ype Leaf Control input port 2 1 x 4 way Dip Switch module 3 8 x RCA S PDIF digital coax audio input sockets 4 8 x pairs of RCA line level stereo output sockets 5 8 x 3 5mm Tip Ring Sleeve sockets for...

Page 8: ...N with a stereo tip ring sleeve plug at the Leaf end with the ring floating not connected or with the ring connected to tip 3 Normal Mode Compatibility Mode 4 Future Function Future Function Table 1 D...

Page 9: ...r similar instead of stand alone IR detectors For this configuration Stereo Tip Ring Sleeve 3 5mm leads must be used instead of Mono leads for the IR interconnections from the control system to the Le...

Page 10: ...th 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 th...

Page 11: ...8h to 3Fh 8 65 to 72 64 to 71 40h to 47h 9 73 to 80 72 to 79 48h to 4Fh A 81 to 88 80 to 87 50h to 57h B 89 to 96 88 to 95 58h to 5Fh C 97 to 104 96 to 103 60h to67h D 105 to 112 104 to 111 68h to 6Fh...

Page 12: ...45 type socket for Ethernet throughput and is designed to match the capabilities of the LT88E 4 1 Local Power Each breakout LTB1 LTB1E is required to be powered by its own local power supply and to be...

Page 13: ...active LED 2 ON The HDBaseT Cat5e Cat6 cable link to the LT88 E has been made successfully and is ready for video LED 3 ON Protected HDCP video content is being transferred on the HDBaseT link FLASHIN...

Page 14: ...ive 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 t...

Page 15: ...t connectors on the LT88 LT88E The source range for the selected audio inputs under this feature becomes HDMI input ports 1 to 8 LTB1 LTB1E Breakouts 9 to 16 LT88 LT88E 17 to 24 This feature is activa...

Page 16: ...dicated by the upper left hand LED only pulsing green blue 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...

Page 17: ...ng these steps in sequence Manually select output zone Press the right hand press button switch sequentially until the LED in the lower row corresponding to the desired output zone is blue then releas...

Page 18: ...second step above the left hand press button switch is pressed until no Blue LEDs are displayed in the upper row the connection will be cleared i e the output will be disconnected from the input 6 4...

Page 19: ...f LT88 LT88E manual Page 19 Of 22 7 Interconnections 7 1 Possible interconnections at front panel LT88E depicted LT88 is similar but without the Ethernet ports 7 2 Possible interconnections at rear pa...

Page 20: ...Leaf LT88 LT88E manual Page 20 Of 22 7 3 Possible interconnections at LTB1E LTB1 is similar but without the Ethernet port...

Page 21: ...rol 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 8x DIRECTIONAL IR INPUTs Support for Direct IR IR TX B...

Page 22: ...ncrease 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...

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