Quick Installation Guide
PREDATA 08/24/2009
NVF-7211/NVF-7221
1. Overview
The VOLKTEK NVF-7200 series is specifically
designed for surveillance systems requiring
seamless transmission over long distances. The
most common applications are in customer premises,
factories, airports, freeways and tunnels.
The NVF-7200 transmitter converts video signals to
light over a fiber link to the NVF-7200 receiver, which
then converts the light back into analog signals and
displays the images on a monitor. The NVF-7200
series is capable of transmitting one video channel
over one fiber cable. Optical transmission of video is
the best solution for long distance transmission and
high display quality. The NVF-7200 series can be
deployed in NXF-711 1-slot, NXF-717 4-slot and
NXF-719 2-slot chassis.
2. Specification
Optical specification
Fiber type: Multi-Mode
Distance: 2km
Fiber type: Single-Mode
Distance: 20km, longer distances available
upon request
Wavelength: 1310nm/1550nm
Video signal specifications
Protocol: PAL, NTSC
Video bandwidth: 8MHz
Bit Error Rate: <10
-9
Video input/output voltage: 1V P-P Video
input/output impedance: 75 ohm
Video resolution: 8 Bit
DG: <1%
DP: <0.6
SNR: >60dB
Connectors and cables
Video: BNC
Video IN: connects to camera
Video OUT: connects to monitor
Fiber connectors: FC/ST
Single mode fiber: 9/125µm
Multimode fiber: 50/125, 62.5/125µm
LED Indicators:
PWR: ON: Indicates normal power
F: ON: Indicates fiber signal is
being received
V: ON: Indicates CCTV camera
signal is beign received
Data (for NVF-7221 model)
Data: RS-485/2 wires
Protocol: Half -Duplex
Data rate: up to 128Kbps
Transmission Distance: 0~1200m
LED Indicator:
D: Flashing when data is
transmitting or receiving
Power
Stand alone box:
AC External power adaptor
DC +12VDC
Mechanical
Dimensions: 109.2 x 73.8 x 23.4 mm
Weight: 160g
Environment
Operating temperature: -10 C~70 C
00
Humidity: 5~95% (Non-condensing)
Compliance: FCC/CE
MTBF: >100,000 Hours
3. Naming rules
VIDEO CONVERTER - Video only
NVF-7211TM (1V, 2 km)
1-ch Video Transmitter, Multi-mode, FC connector
NVF-7211RM
1-ch Video Receiver, Multi-mode, FC connector
NVF-7211TS
1-ch Video Transmitter, Single-mode, FC connector
NVF-7211RS
1-ch Video Receiver, Single-mode, FC connector
(1V, 2 km)
(1V, 20 km)
(1V, 20 km)
-1- -2- -3-
VIDEO CONVERTER - Video & Data
PREDATA 08/24/2009
NVF-7221TM (1V1D, 2 km)
1-ch video Transmitter with data, Multi-mode, FC
Duplex connector
NVF-7221RM
(1V1D, 2 km)
1-ch video Receiver with data, Multi-mode, FC
Duplex connector
NVF-7221TS
(1V1D, 20 km)
1-ch video Transmitter with data , Single-mode, FC
connector
NVF-7221RS
(1V1D, 20 km)
1-ch video Receiver with data , Single-mode, FC
connector
The following is the naming rule:
NVF-72
1: Video
2: Video+Data
Number of video ports
T: Transmitter
R: Receiver
All models are FC Connectors.
ST connectors also available, model name: NVF-72xxxx-ST
S: Single-mode
M: Multimode
4. Hardware Installation Procedure
STEP 1:
Connect the AC adaptor to the power input on the
rear panel of Transmitter. Alternatively, connect DC
+12V power directly to the terminal block in the
rear panel.
STEP 2:
Connect CCTV camera to Transmitter. The video (V )
LED should be on. If not, please connect CCTV camera
to a monitor to make sure the CCTV camera and
cable are in working order.
STEP 3:
Connect the AC adaptor to the power input on the
rear panel of Receiver. Alternatively, connect DC+
12V power directly to the terminal block in the rear
panel.
STEP 4:
Connect fiber to Transmitter and Receiver. The fiber
(F) LED should turn on to indicate that it is receiving
the signal from the remote site. If not, please check
fiber cables.
STEP 5:
Connect monitor to Receiver. The monitor should
display CCTV camera image immediately. If Video
(V ) LED on receiver is off this indicates the Receiver
is not receiving the CCTV signal from the Transmitter
site, please check fiber cable and remote site.
STEP 6:
For NVF-7221 models, please connect 2 wire RS-485
to Transmitter and Receiver. The Data (D) LED will
flash when data is being transmitted.
Coaxial cable Coaxial cable
F
R
E
IB
F
L
A
IC
T
P
O
X
R
X
T
Fiber cable
V
RS-485
D
GND
-+
VIDEO OUT
F
R
E
IB
F
L
A
IC
T
P
O
V
RS-485
D
GND
-+
X
R
X
T
VIDEO IN
CameraMonitor TransmitterReceiver
NVF-7211 TM/TS
OPTICAL FIBER
V
RX
EO
VID
Video In
connect to camera
NVF-7211 RM/RS
F
OPTICAL FIBER
V
TX
VIDEO
Video Out
connect to Monitor
IN
UT
O
NVF-7221 TM
F
OPTICAL FIBER
V
RS-485
D
GND
-+
RX
TX
Video In
connect to camera
NVF-7221 RM
F
OPTICAL FIBER
V
RS-485
D
GND
-+
RX
TX
Video Out
connect to Monitor
VID
VIDEO OUT
IN
EO
Should you have any further questions or concerns,
please do not hesitate to contact VOLKTEK Customer
Support.
VOLKTEK Corporation
www.volktek.com
support@volktek.com
Ph: +886-2-8242-1000
Fax: +886-2-8242-3333
-4- -5- -6-
6400-000008
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