Telecast Fiber Systems
Specifications
Electrical Specifications
Sample rates
Selectable for 32KHz, 44.056KHz,
44.1KHz, 48KHz, or external sync
Inputs
8 channels (XLR female conn.)
Outputs
8 channels (XLR male conn.)
Input/output format
AES/EBU digital audio
(complies with full implementation of the AES 3spec.)
AES sync input/output
XLR connectors
Input power
12V DC at .5 Amps,
center pin negative
Supply indicators
Green LED’s, -12,+12,-5,+5V DC
Optical Specifications
Transmission distance
Up to 20km
Wavelength
1310nm Multimode or Singlemode
Tx optical output (Avg.)
0 dBm
Rx optical input Sensitivity (Avg.)
-30 dBm
Optical power budget
Up to 30 dBm
Physical
Dimensions
1.75"H x 19"W x 14.75"D
Shipping weight
11 lbs.
*** Note that in cases of short fiber lengths or runs of very little optical loss,
an optical attenuator of at least 15dBm may be needed to reduce the
potential of overloading the receiver.
Troubleshooting and Repair
7
In the unique case where you have a AES Digital signal with a unknown frequency, set
the SAMPLE RATE switch for the Tx to EXT., at the Rx simply step through each of the
sample rate choices. If none of the four choices work, then an external sync signal will
have to be provided at the Rx unit.
Call Telecast Fiber Systems, Inc. for assistance with the Adder 161 System at
508-754-4858 and ask for our service department. To return a unit for repair, you must
obtain a return material authorization (RMA) number from Telecast service.
The Adder AES-8 system is “plug and play”. There are no use adjustments inside nor
are there any user serviceable parts inside. Assuming the units have power
indications, operation is immediate following the presentation of a valid AES signal. If
any problems arise that can not be solved using this manual, contact Telecast.
