
FVT/FVRXA4C1(M)(S)
4-channel 24-bit audio multiplexer
+ one bi-directional contact closure
Description
The ComNet™ FVT/FVRXA4C1 series audio multiplexer
provides the transmission of four audio signals
and one bi-directional contact closure over one
multimode or single mode optical fiber. The modules
use 24-bit 96kHz sample rate digital encoding for
superior transmission of balanced line-level audio.
Plug-and-play design ensures ease of installation
and no electrical or optical adjustments are ever
required. Bi-color (Red/Green) LED indicators confirm
equipment operating status. Packaged in the exclusive
ComNet ComFit housing, these units may be either wall
or rack-mounted, or may be DIN-rail mounted by the
addition of ComNet model DINBKT1 adaptor plate.
A
4
C
1
Features
- 24-bit 96kHz Digital Transmission
- One Bi-directional Contact Closure
- 20Hz - 18kHz Audio Bandwidth
- 600 Ohms Audio Input Impedance
- No In-field electrical or optical adjustments
- Bi-color (Red/Green) LED status indicators confirm
equipment operating status
- Transmits Balanced Line-Level Audio up to +6dBm
- Hot-swappable rack modules
- Interchangeable between stand-alone or rack mount use
– ComFit
Applications
- Transmission of Broadcast Audio
- Recording Studios and Post-Production Facilities
- Elimination of EMI/RFI Interference in Audio Cables
- Optical Isolation for Elimination of Ground Loop
Noise
LIFETIME WARRANTY WWW.COMNET.NET TECH SUPPORT: 1.888.678.9427
- Distances up to 30 miles (48 km) without repeaters
- Automatic resettable fuses on all power lines
- Lifetime Warranty

FVT/FVRXA4C1(M)(S)
specifications
4-channel 24-bit audio multiplexer
+ one bi-directional contact closure
AUDIO
# Input/Output Channels: 4 (balanced)
Audio Input/Output Signal: 4.4 volt pk-pk (+6dBm)
Bandwidth: 20Hz - 18kHz
Total Harmonic Distortion: 0.05%
Signal-to-Noise Ratio (SNR): 85dB (Typical)
CONTACT
Contact Interface: Response Time: 0.5 msec
Input: Dry Contact Closure
Output: SPST Relay, 0.5 A Contact Rating - normally open
WAVELENGTH 1310 nm/1550 nm, Multimode and Single Mode
NUMBER OF FIBERS 1
LED INDICATORS - Link - Audio Channels 1-4
- Contact Closure - Power
CONNECTORS
Optical: ST
Power: Terminal Block
Audio: Terminal Block
PART
NUMBER
DESCRIPTION
ELECTRICAL & MECHANICAL
Power:
Surface Mount: 8-15 VDC @ 2 W
Rack Mount: From Rack
Number of Rack Slots: 1
Current Protection: Automatic Resettable
Solid-State Current Limiters
Circuit Board: Meets IPC Standard
Size (in./cm) (L×W×H) 6.1 × 5.3 × 1.1 in.,
(15.5 × 13.5 × 2.8 cm)
Shipping Weight: <2 lb./0.9 kg
ENVIRONMENTAL
MTBF: >100,000 hours
Operating Temp: -40˚ C to +75˚ C
Storage Temp: -40˚ C to +85˚ C
Relative Humidity: 0% to 95% (non-condensing)
†
May be extended to condensation conditions by adding suffix ‘/C’
to model number for conformal coating.
FIBERS
REQUIRED
FIBER
OPTICAL
PWR BUDGET
MAX.
DISTANCE
†
MADE IN THE
USA
‡
# RACK
SLOTS
FVTXA4C1M
FVRXA4C1M
FVTXA4C1S
FVRXA4C1S
Accessories
Options
NOTE: This product requires a fiber installation with a minimum 30 dB connector return loss. The use of Super Polish Connectors is recommended.
‡
Distance may be limited by optical dispersion.
Complies with FDA Performance Standard for Laser Products, Title 21, Code of Federal Regulations, Subchapter J
In a continuing effort to improve and advance technology, product specifications are subject to change without notice.
4 Channel Audio Transmitter (1310 nm/1550 nm)
4 Channel Audio Receiver (1310 nm/1550 nm)
4 Channel Audio Transmitter (1310 nm/1550 nm)
4 Channel Audio Receiver (1310 nm/1550 nm)
9 Volt DC Plug-in Power Supply, 90-264 VAC, 50/60 Hz (Included)
Add ‘/C’ for Conformally Coated Circuit Boards (Extra charge, consult factory)
DIN-Rail Mounting Adaptor Plate Kit – With mounting hardware (Optional, order model DINBKT1)
4
A A
FVTXA4C1S1
C C
1
1 Fiber
9/125µm SM
Up to 48 km
(30 miles)
Multimode
62.5/125µm
Single Mode
9/125µm
FVRXA4C1S1
4
11 3 km (2.5 miles)16 dB
148 km (30 miles)16 dB
OPTICAL FIBER
3 CORPORATE DRIVE | DANBURY, CT 06810 | USA
T: 203.796.5300 | F: 203.796.5303 | TECH SUPPORT: 1.888.678.9427 | INFO@COMNET.NET
8 TURNBERRY PARK ROAD | GILDERSOME | MORLEY | LEEDS, UK LS27 7LE
T: +44 (0)113 307 6400 | F: +44 (0)113 253 7462 | INFO-EUROPE@COMNET.NET
11.12.10© 2010 Communications Networks Corporation. All Rights Reserved. “ComNet” and the “ComNet Logo” are registered trademarks of Communication Networks, LLC.