
Audio Fiber Optic Receiver & Power Amp
MR-05B-PA
SERIES
MULTIMODE
SINGLEMODE
FEATURES:
70 Volt Output to Power Remote
Speakers
Diagnostics: Power and Optical
Presence
No user or installation adjustments
ST Optical Connector
Compatible with
AFI Series 05B transmitters
SPECIFICATIONS:
Audio:
Output Power................ 5 Watts @ 8 ohms
Output Voltage………………………70Vrms
Bandwidth ......................... 20 Hz to 20 kHz
THD....................................................1.0 %
Signal to Noise...................................65 dB
Connector ...........................Terminal Block
Optical:
Multimode
Wavelength.....................................850 nm
Loss Budget (62.5/125 µm fiber).........20dB
Connector .............................................. ST
Singlemode
Wavelength...................................1310 nm
Loss Budget (9/125 µm fiber)..............21dB
Connector .............................................. ST
Environmental
Operating Temp…..............-40°C to +75°C
Storage Temp……..……….-40°C to +85°C
Humidity…….0% to 95% (non condensing)
MTBF……………………….>100,000 hours
Power Supply:
Included with modules
Module Receiver ..…………..12 VDC/1.5A
Size:
Module:………………...81/8” x 41/8” x 11/2”
Ordering information:
Multimode
MR-05B-PA Module Receiver & Amp
Singlemode
MR-05B-PA-SL Module Receiver & Amp
1/4/15 JPK
The American Fibertek 05B-PA receiver operates in conjunction
with the American Fibertek MT-05B Series transmitters. The link
accepts single direction line level audio, 600 ohms balanced or
unbalanced,
transmits the audio over one multimode or
singlemode fiber and provides a 5W @ 70V output to power
remote speaker systems.
The audio is transmitted over the link using FM modulation which
results in an improved signal to noise ratio and a constant audio
output level over the full optical loss budget. Diagnostic indicators
provide a quick visual check of system status.
Designed to be completely transparent, these links require no
field adjustments at installation or additional maintenance
thereafter.
Audio
Line Level
MT-05B
One Fiber
MR-05B-PA
Audio
5W @ 70 V
To Speakers

Audio Systems
05B-12VDC
SERIES
MULTIMODE
SINGLEMODE
FEATURES:
600 Ohm Balanced or Unbalanced
Audio
Diagnostics: Power and Optical
Presence
No user or installation adjustments
ST Optical Connector
SPECIFICATIONS:
Audio:
I/0 Level @ 600 Ω ...........0 dBm (2.2 Vp-p)
I/0 Level Max…………..+12 dBm (8.8 Vp-p)
I/0 Impedance ................................... 600 Ω
Bandwidth ......................... 20 Hz to 20 kHz
THD.................................................... 1.0 %
Signal to Noise...................................65 dB
Connector ........................... Terminal Block
Optical:
Multimode
Wavelength ..................................... 850 nm
Loss Budget (62.5/125 µm fiber).........20dB
Connector .............................................. ST
Singlemode
Wavelength ................................... 1310 nm
Loss Budget (9/125 µm fiber)..............21dB
Connector .............................................. ST
Environmental
Operating Temp…..............-40°C to +75°C
Storage Temp……..……….-40°C to +85°C
Humidity…….0% to 95% (non condensing)
MTBF……………………….>100,000 hours
Power Supply:
Included with modules
Module Transmitter………………...12 VDC
Module Receiver …………………..12 VDC
Rack Card………(See AFI Part #: SR20/2)
Size:
Rack Card……………..…5.0” x 61/2” x 1.0”
Module………………….2
5
/8” x 53/4” x 13/8”
Ordering information:
Multimode
MT-05B-12VDC Module Transmitter
MR-05B-12VDC Module Receiver
RT-05B Rack Card Transmitter
RR-05B Rack Card Receiver
Singlemode
MT-05B-S-12VDC Module Transmitter
MR-05B-S-12VDC Module Receiver
RT-05B-S Rack Card Transmitter
RR-05B-S Rack Card Receiver
3/13/14 JPK
The American Fibertek 05B Series transmits single direction
line level audio, 600 ohms balanced or unbalanced,
on one
multimode or singlemode fiber. The audio is transmitted over
the link using FM modulation which results in an improved
signal to noise ratio and a constant audio output level over
the full optical loss budget. Diagnostic indicators provide a
quick visual check of system status.
Designed to be completely transparent, these links require no
field adjustments at installation or additional maintenance
thereafter. Equipment may be ordered as stand alone
modules or rack cards that are mounted in the American
Fibertek Card Cage: SR20/2 or SR-20H-2 (redundant power
supplies).
Audio
MT-05B-
12VDC
Fiber
MR-05B-
12VDC
Audio

120 Belmont Drive • Somerset, NJ 08873 • 732-302-0660 • Fax: 732-302-0667 • Toll Free: 877-AFI-7200
e-mail: mail@americanfibertek.com www.americanfibertek.com
1
The American Fibertek 05B Series transmits single direction audio on one
multimode optical fiber at 850 nm. This product line has the option for 1300
nm multimode or singlemode optics. This system requires no field
adjustments at installation or additional maintenance thereafter. Diagnostic
indicators provide a quick visual indication of system status. Equipment may
be ordered as stand alone modules or rack cards that are mounted in the
American Fibertek Card Cages: SR-20/2 or SR-20R/1.
Audio Systems
05B
SERIES
MULTIMODE
SINGLEMODE
FEATURES:
• 600 Ohm Balanced or Unbalanced Audio
• Low Cost 850 nm Optics
• Diagnostic: Power and Optical Presence
• No User or Internal Adjustments
• 24 VAC Standard or 12 VDC Option
• ST Optical Connector
SPECIFICATIONS:
Audio:
I/O Level @ 600 Ohms .............................0 dBm
Bandwidth..................................20 Hz to 20 KHz
THD.................................................................2 %
SNR..............................................................50 dB
Connector............................3 pin screw terminal
Optical:
Wavelength .............................................850 nm
Loss Budget (62.5/125µ)...........................20 dB
Connector.........................................................ST
Temperature (Operating):
-20°C to +70°C, non-condensing
Power Supply:
Module - 24 VAC (AFI Part #: PS-24)
Rack Card - (See AFI Part #: SR-20/2)
Size:
Module - 2
5
⁄8”x 53⁄4”x 15⁄16”
Rack Card requires one rack slot - 6
1
⁄2” x 1” x 5”
ORDERING INFORMATION:
MT = Module Transmitter - Audio Input
MR = Module Receiver - Audio Output
RT = Rack Card Transmitter - Audio Input
RR = Rack Card Receiver - Audio Output
Example: MT-05B to RR-05B
PRODUCT ENHANCEMENTS:
05B-13 Series - 1300 nm multimode optics with a loss budget
of 18 dB @ 1300 nm wavelength.
05B-S Series - 1300 nm singlemode optics with a loss budget
of 18 dB @ 1300 nm wavelength.
Audio Audio
05B
Series
Transmitter
05B
Series
Receiver
one fiber