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
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The American Fibertek 0890 Series transmits two channels of high-quality
bi-direction audio/contact closure on one multimode optical fiber. Designed
to be completely transparent, this product series will provide superior
performance in audio systems where 600 Ohms balanced audio and contact
closure are required. 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.
Bi-directional Audio and Contact Closure System
Two-Way Audio and Two-Way Contact Closure
0890
SERIES
MULTIMODE
FEATURES:
• Bi-directional Audio and Contact Closure
Transceivers
• Diagnostics: Power and Optical Presence
• 24 VAC Standard or 12 VDC Option
• No User or Installation Adjustments
• 600 Ohms Balanced or Unbalanced Audio
• FM Modulated Audio
SPECIFICATIONS:
Audio:
I/O Level @ 600 Ohms .............................0 dBm
Bandwidth..................................20 Hz to 10 KHz
THD @ 1 KHz..................................................1%
SNR..............................................................50 dB
Connector ...........................5 Pin Screw Terminal
Contact Closure:
Input..............................Switch closure to ground
Output ...............................................Dry Contact
Response time.............................................2 ms
Connector ...........................5 Pin Screw Terminal
Optical:
Wavelength ..........................................850/1300 nm
Loss Budget (62.5/125µ)...........................12 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 - 5
3
⁄4”x 63⁄4”x 13⁄8”
Rack Card requires one rack slot - 6
1
⁄2” x 1” x 5”
ORDERING INFORMATION:
MT = Module Transmitter -
Audio/Contact Closure
Input/Output
MR = Module Receiver -
Audio/Contact Output/Input
RT = Rack Card Transmitter
Audio/Contact Closure
Input/Output
RR = Rack Card Receiver -
Audio/Contact Output/Input
Example: MT-0890 to RR-0890