Pub. 42004-735L2D
GAI-TRONICS 3030 KUTZTOWN RD. READING, PA 19605 USA
610-777-1374
800-492-1212
Fax: 610-796-5954
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G A I - T R O N I C S ®
A H U
B B E L
L C O
M P A N Y
Model LE300 Series Wall-Mount
Page/Party
®
Line Extenders
T
A B L E O F
C
O N T E N T S
Confidentiality Notice .....................................................................................................................1
General Information .......................................................................................................................1
Line Extender and Sub-Component Details ......................................................................................... 2
Model LE300 ........................................................................................................................................................ 3
Model LE300-MM, LE300-SM, LE300-MM1, and LE300-SM1 ........................................................................ 3
Audio Termination Connection Module ............................................................................................................... 4
Input/Output (I/O) Termination Connection Module ............................................................................................ 4
Main PCBA........................................................................................................................................................... 5
Features and Functions ..................................................................................................................6
Page Line Audio Transmission .............................................................................................................. 6
Page Line Audio Monitoring Output .................................................................................................... 7
Page Line Audio Detect Output Contact .............................................................................................. 8
Page Line FSK Data Transmission (SmartSeries Systems) ................................................................ 8
Page Line 50 kHz VLC Transmission ................................................................................................... 9
Page Line Ground Fault Detection ........................................................................................................ 9
Page Line Ground Fault Re-generation .............................................................................................. 10
Page Line Ground Fault Output Contact ........................................................................................... 10
Party Line Audio Transmission ........................................................................................................... 11
Party Line Off-Hook Detection ............................................................................................................ 11
Party Line Off-Hook Regeneration ..................................................................................................... 12
Audio Line Connection Relays ............................................................................................................ 13
Audio Line Muting ................................................................................................................................ 13
Page/Party
®
Line Balance ..................................................................................................................... 14
Contact Closure Inputs & Relay Outputs (I/O) ................................................................................. 15
Echo Cancellation ................................................................................................................................. 16
Manual Initiation of Echo Canceling .................................................................................................................. 16
Data Links between Line Extenders .............................................................................................16
T1/E1 Data Link .................................................................................................................................... 17
Low Voltage Differential Signaling (LVDS) Data Link ..................................................................... 17