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Adder™ 161

Warranty

LIMITED WARRANTY STATEMENT

Telecast Fiber Systems, Inc. (“Telecast”) expressly warrants to Buyer that the Products supplied shall be free
from defects in materials and workmanship for a period of 12 months following the date the Products are
delivered to Buyer (the “Warranty Period”). Telecast's liability under this limited warranty shall be limited, at its
option, to providing refund of purchase price for Products, or replacing or repairing Products shown to be
defective either in materials or workmanship. Buyer's sole and exclusive remedy for breach of warranty shall be
such refund, replacement or repair.

A claim of defect in materials or workmanship in any Product shall be allowed only when it is submitted in writing
to Telecast Fiber Systems, Inc. within seven days after discovery of the defect, and in any event within the
Warranty Period. No claim shall be allowed in respect of any Product which has been altered, neglected,
damaged or stored in any manner which adversely affects it. In order to obtain service under the terms of this
warranty, Distributor’s customer or Distributor must notify Telecast of the defect prior to the expiration of the
applicable warranty period and obtain a Return Authorization Number from Telecast. In no event may products be
returned to Telecast or to Distributor for warranty service without having obtained from Telecast a Return
Authorization Number.

This limited warranty applies only to new and unused Products delivered to Buyers located within the United
States of America, or to international Buyers if sold through an authorized Distributor organization, and shall not
extend to any equipment not manufactured by Telecast Fiber Systems, Inc., even though such equipment may be
sold or operated with the Products. In addition, this limited warranty shall be void and of no further force or effect
whatsoever if the Product is repaired or modified by any person other than an authorized representative of
Telecast Fiber Systems, Inc. without the consent of Telecast Fiber Systems, Inc. This warranty shall not apply to
any defect, failure or damage caused by improper use or inadequate maintenance and care. Nor shall this
warranty apply to any damage caused in whole or in part by attempts by personnel other than Telecast’s
personnel, as approved in advance in accordance with the foregoing provisions, to open, install, repair, or
service the Product; nor to damage resulting from improper connection with incompatible equipment; nor to
damage to a unit which has been modified by personnel other than Telecast personnel.

Products returned to Telecast for warranty service shall be shipped, freight prepaid to Telecast. Telecast will
return the repaired product or ship a replacement, freight prepaid, to either Distributor or Distributor’s customer,
as requested by Distributor’s customer, at a location within the United States or, at Telecast’s option, to
Distributor’s location in the case of international sales.

This limited warranty shall also apply to Products that replace defective Products and Products that have been
repaired by authorized representatives of Telecast Fiber Systems, Inc., but only for the original Warranty Period.
The Warranty Period shall not be extended by reason of defect, or any period of time during which the Product is
not available to Buyer because of defects or repairs, without the express written consent of Telecast Fiber
Systems, Inc.

EXCEPT FOR THE EXPRESS LIMITED WARRANTY AGAINST DEFECTS IN MATERIALS AND WORKMANSHIP
CONTAINED HEREIN, TELECAST FIBER SYSTEMS, INC. MAKES NO WARRANTY OF ANY KIND WHATSOEVER,
EXPRESS OR IMPLIED, AND ALL WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE,
AND OTHER WARRANTIES OF WHATEVER KIND ARE HEREBY DISCLAIMED BY TELECAST FIBER SYSTEMS, INC.
THIS LIMITED WARRANTY SETS FORTH EXCLUSIVELY ALL OF TELECAST FIBER SYSTEMS, INC.'S LIABILITY IN
CONTRACT OR OTHERWISE IN THE EVENT OF A DEFECTIVE PRODUCT.
WITHOUT LIMITATION ON THE FOREGOING, TELECAST FIBER SYSTEMS, INC. EXPRESSLY DISCLAIMS ANY
LIABILITY WHATSOEVER FOR ANY DAMAGES INCURRED DIRECTLY OR INDIRECTLY IN CONNECTION WITH THE
SALE OR USE OF, OR OTHERWISE IN CONNECTION WITH, THE PRODUCT, INCLUDING WITHOUT LIMITATION,
LOSS OF PROFITS AND SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES, WHETHER CAUSED BY
NEGLIGENCE OR OTHERWISE, REGARDLESS WHETHER TELECAST HAS BEEN GIVEN ADVANCE NOTICE OF
THE POSSIBILITY THEREOF.
THIS WARRANTY IS GIVEN BY TELECAST IN LIEU OF ANY OTHER WARRANTY EXPRESSED OR IMPLIED.

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Summary of Contents for Adder 161

Page 1: ...Telecast Fiber Systems Inc 102 Grove Street Worcester MA 01605 Tel 508 754 4858 Fax 508 752 1520 www telecast fiber com Adder 161 Audio Multiplexer Instruction Manual...

Page 2: ...Adder 161 ii...

Page 3: ...Electrical Connections 7 Audio Connections 7 Digital Connections 8 48 VDC Phantom Power 9 Line Power Connection 9 Input Power Fuse 9 Battery Charging 10 Panel Indicators 10 Powering Up 11 Theory of Op...

Page 4: ...se Locations 9 Figure 10 TX and RX Front Panel 10 Figure 11 Electronic Block Diagram 11 Figure 12 TX Digital Input Circuit Connectors 1 2 only 12 Figure 13 RX Digital Output Circuit Connectors 1 2 onl...

Page 5: ...manual Within an Adder 161 TX transmitter unit the audio signals are first digitized and then multiplexed with the digital control signals The combined electrical signal is converted to an optical sig...

Page 6: ...wer supplies require 120 VAC Be sure that AC outlets are within reach of their 6 foot power cords Fiber and Coaxial Cable Runs The installer is responsible for providing the fiber optic cable runs whi...

Page 7: ...k 40 dB 22 dBm peak 40 dB 24 dBV peak 50 dB 32 dBm peak 50 dB 34 dBV peak Audio Signal Setup Note Setting up the internal switches on the rack mount unit requires removal of its top cover The DIP swit...

Page 8: ...dBm the input gain can be set to 10 dB and the RX attenuation set to 10 dB Thus the signal levels remain at the same reference level throughout Receiver Setup Procedure The setup switches for the outp...

Page 9: ...the Fine Level trim pot in each output circuit of the Adder 161 RX The range of adjustment is 2 dB 5 If the system is to be used with coaxial cable rather than fiber move the small switch near the al...

Page 10: ...are available from Telecast Fiber Systems Inc For custom cable fabrication use type ST connectors such as Telecast part number CONN ST QC Always follow the connector manufacturer s directions when fa...

Page 11: ...locations See Table 3 and Figure 7 Pin Signal 1 Ground 2 Balanced I O 3 Balanced I O Table 3 XLR Audio I O Cable Connections The XLR connectors are on the rear panel as shown in Figure 7 Transmitter...

Page 12: ...ia the DB 9 connectors as shown in Figure 8 The connection specifications are listed in Table 4 A 110 terminating resistor placed across the balanced inputs may be needed if cable lengths are in exces...

Page 13: ...ly into a 120 VAC line See Figure 9 for locations followed by Table 5 for connections AUDIO DA TA 1 CLOCK COAX DAT A I O SLO DC INPUT 12 24 VDC 2 3 4 OPTICAL 1 3 5 7 9 11 13 15 2 4 6 8 10 12 14 16 1 4...

Page 14: ...fter one half hour of charging There may be a few minutes of reserve power after the indicators turn off Rx Status This red LED on the receiver is on when the fiber optic link is not properly attached...

Page 15: ...digital inputs and time division multiplexes them onto a single optical fiber or coaxial cable The system has two basic functions multiplexing signals onto an optical fiber or coaxial cable and demul...

Page 16: ...e accepted and sent on connectors 1 and 2 The contact input and relay output circuits are as described above The pin wiring for connector 3 and 4 closure circuits is the same as on connectors 1 and 2...

Page 17: ...Multiplexer A B C D E F 51 51 51 10k 10k 1 of 4 MC33179 6 of 74HC14 180pf 180pf 5 9 4 8 3 7 2 6 1 Data I O Data from De Multiplexer FMMT2222A FMMD6100 1k 10 16 5v 5 IN OUT Figure 13 RX Digital Output...

Page 18: ...Adder 161 Figure 14 TX Audio Input Stage 14...

Page 19: ...2 dB 10 dB 8 dBm peak From 20 Hz to 25 KHz 0 2 dB Table 6 Output Signal levels Optical Outputs The optical output is generated from a high power LED or Laser coupled to the fiber User connections are...

Page 20: ...wn in Figure 16 is active whenever all units an Adder 161 unit is receiving DC power between 13 8 and 24 VDC Charging current is limited to a trickle level at any voltage input Full charge takes 16 ho...

Page 21: ...power depleted adapter If the light does not turn green replace the battery No operation Fiber or coax Check for broken or disconnected rx status LED on communications fibers and faulty wires or that...

Page 22: ...6 dBV peak 20 dB 4 dBV peak 30 dB 14 dBV peak 40 dB 24 dBV peak 50 dB 34 dBV peak Output Signal Levels 30 balanced output into 600 W Unity gain 18 dBm peak 10 dB 8 dBm peak Frequency response 8 dBm Fr...

Page 23: ...p 0 19 2 KBits sec Jitter 1 12 msec higher rates possible dependent on user system jitter tolerance Contact Closure TX Input TTL 1 or open circuit remote contact open TTL 0 or shorted to circuit groun...

Page 24: ...ate maintenance and care Nor shall this warranty apply to any damage caused in whole or in part by attempts by personnel other than Telecast s personnel as approved in advance in accordance with the f...

Page 25: ...Telecast Fiber Systems 21...

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