Related Manuals for Lectrosonics TH2
Summary of Contents for Lectrosonics TH2
- Page 1 DIGITAL TELEPHONE HYBRID OPERATING INSTRUCTIONS and trouble-shooting guide LECTROSONICS, INC. Rio Rancho, NM...
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Page 2: Table Of Contents
INTRODUCTION The TH2 Digital Hybrid is part of the LecNetTM family of audio products. The TH2 works with any standard two wire telephone system, to provide a convenient and inexpensive means of using any sound system for teleconferencing. This product is... -
Page 3: Fcc Part 68 Compliance
If trouble is experienced with this equipment, please contact Lectrosonics, Inc. at (800) 821-1121 for repair and/or warranty information. If the trouble is causing harm to the telephone network, the telephone company may request you remove the equipment from the network until the problem is resolved. -
Page 4: General Technical Description
The TH2 is fully interfaced with the AM8 automatic mixer in that it participates in the auto mixing algorithm just like another microphone. The transmit (or near-end) signal is typically received from the Lectrosonics AM8 Automatic Mixer via the TH2 Expansion Out jack. -
Page 5: Installation
Used with the Lectrosonics AM8 automatic mixer, the interconnections to the TH2 are very simple. Set the TH2 Rear Panel Local Expan switch on the TH2 to the Expan position. Set Switch in "EXPAN" position the Master/Slave switch on the AM8 to the Master AM8 Rear Panel position. - Page 6 INPUT system. Local Sound Reinforcement Figure 4 - TH2 & Single Bus Mixer Configuration with Unbalanced Outputs SIMULTANEOUS 2-WIRE/4-WIRE CONVER- SION FOR 3-SITE CONFERENCING LOCAL...
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Page 7: Front Panel Description
POWER Figure 6 - TH2 Front Panel POWER - Turns the TH2 On/Off. After the power is turned on, all LEDs, with the exception of the Privacy LED, will turn ON momentarily. RECEIVE LEVEL - Adjusts the receive volume level. The SIG LED next to this potentiometer indicates the presence of receive signal, and the LIM LED indicates overload in the receive channel. -
Page 8: Rear Panel Description
LECNET (RS232) SERIAL PORT - Provides access to and remote control of some of the operational features of the TH2. This port is compatible with the serial port of a PC, AMX touch screen, or any other controller with the standard RS232 type serial port. -
Page 9: Operating Instructions
Input/Output in the proper configuration. Using the LecNetTM Control is covered in the Serial Port Hardware and Software sections of this manual. When the power is turned on to the TH2 the LEDs, with the exception of the Privacy LED, will momentarily turn On. -
Page 10: Th2/Am8 System Setup Procedure
The best results are achieved using a Plain Old Telephone System (POTS) line, or using a telephone line simula- tor such as Teltone TLS-3, or TLS-4. When setting up the TH2, establish a call “off-site” and adjust for the average of several calls since there might be some difference in received levels from one call to another. -
Page 11: Troubleshooting
If customer expectation is to have a loud receive signal, some of the sound will eventually be recirculated. You can see this behavior on the front panel of the TH2 when RECEIVE LED and TRANSMIT LED are lit at the same time. -
Page 12: Serial Cable Wiring Diagram
Port If you are using an AMX system to control your LecNet (PC) equipment, you’ll want to purchase the Lectrosonics PT3 Protocol Translator. The PT3 connects between the AMX bus and any LecNet equipment. With the PT3, the LecNet equipment looks just like native AMX equipment. -
Page 13: Serial Port Software Commands
As an example of a specific interchange between a host and an TH2 the following general procedure would be used to get a name string back from an TH2: Set up the communications parameters of the device which will be the host. - Page 14 Host sends command - dec 1 or hex 01 Host receives data bytes: byte 1 is the length of the name string (3 for TH2), bytes 2, 3, and 4 are the ASCII repre- sentation for the device name “TH2”, i.e. dec (84, 74, 50). or hex (54, 4A, 32) Set Device Address - Changes the TH2 device address and stores the new address in EEPROM.
- Page 15 Host sends command - dec 22 or hex 16 Host reads 1 byte representing the connect status. This byte has a value of “1” when the TH2 is connected, and has a value of “0” when the TH2 is disconnected.
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Page 16: Specifications
21529 9-pin D-sub to stereo mini plug serial cable CH40 110V AC power supply LNETWIN 3.5" floppy disk with LecNet software M-TH2 TH2 instruction manual 35679 mini straight slot screwdriver Optional RCW-TEL Wall plate remote control unit. RCW-DESK Table top remote control unit... -
Page 17: Service And Repair
There are no adjustments inside that will make a malfunctioning unit start working. LECTROSONICS service department is equipped and staffed to quickly repair your equipment. In-warranty repairs are made at no charge in accordance with the terms of the warranty. Out of warranty repairs are charged at a modest flat rate plus parts and shipping. -
Page 18: Warranty
This warranty applies only to items returned to us, shipping costs prepaid, within one year from the date of purchase. This warranty gives you specific legal rights. You may have additional legal rights which vary from state to state. LECTROSONICS, INC. 581 LASER ROAD RIO RANCHO, NM 87124 USA May 10, 2000...