Securitytronix ST-CCTV-VBAC16 User manual

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INSTALLATION MANUAL©
ST-CCTV-VBAC16
16-Channel Active UTP Video Receiver
Copyright North American Cable Equipment, Inc.

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PACKAGE CONTENTS
This package contains:
One ST-CCTV-VBAC16 16-channel active UTP video receiver
One AC power cord
One pair of rack mounting brackets
One installation manual
PRODUCT DESCRIPTION
The ST-CCTV-VBAC16 is an 16-channel active video receiver that receives a balanced signal
over unshielded twisted pair (UTP) cable and converts it to an unbalanced signal for a display
device (e.g., monitor, DVR). Sixteen channels of video imaging simultaneously can be received
over UTP cable, processed and displayed. The ST-CCTV-VBAC16 incorporates excellent
crosstalk suppression and transient suppression protection. Black and White video transmission
distances using the SecurityTronix ST-CCTV-VB passive video balun are up to 7,200 feet. Use of
the SecurityTronix ST-CCTV-VBAC-TX active video balun allows black and white transmission
distance up to 9,180 feet. Color video transmission distances will be shorter.
ST-CCTV-VB ST-CCTV-VBKIT
SPECIFICATIONS
ST-CCTV-VBAC16
Specifications (Typical)
1. BW Transmission Distance
7,200 feet (passive devices), 9,180 feet (active devices) using UTP cable
2. Frequency Response
DC –6MHz (passive devices), DC –8MHz (active devices)
3. Common Mode Rejection Ratio
60dB
4. Number of Inputs
16
5. Number of Outputs
16
6. Impedance
Coax BNC: 75Ω, UTP: 100Ω
7. UTP Port
RJ45
8. Operating Temperature
14°F – 158°F
9. Relative Humidity
0 –90%
10. Wire Type Range for Operation
One Unshielded Twisted Pair per Video Signal
DC Loop Resistance : 18Ω/100M
Impedance : 100Ω±20%
Differential Capacitance : 62pF/m maximum
11. Dimensions
17”x6.75”x2” (excluding BNC connectors)
12. Weight
7.7 lbs.
13. Power
90 –260VAC

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INSTALLATION AND OPERATION
CAUTION: To reduce the risk of electrical shock do not remove the cover or back of this
unit. No user serviceable parts are inside.
CAUTION: To prevent electric shocks and risk of fire hazards, do not use other than
specified power source.
1. UNPACKING and HANDLING
Each unit is shipped assembled and factory tested.
Ensure that all accessories are removed from the container before discarding packing material
2. MECHANICAL INSPECTION
Inspect the front and rear of the equipment for shipping damage. Make sure the equipment is
clean, and no connectors are broken, damaged, or loose. If equipment appears to be
damaged or defective please contact your distributor or SecurityTronix at 1-610-429-1511 for
assistance.
3. SPECIAL ATTENTION
a. The installer must comply with electrical safety standards.
b. This unit is designed to use AC power. Using a power source other than 90 –260VAC
will damage the unit.
c. Only qualified installers are allowed to install and test the unit.
d. The ST-CCTV-VBAC16 is intended for indoor installations. If installed outdoors proper
safety and lightning grounding are required.
4. PRODUCT DIAGRAM
This symbol is intended to alert the user to the presence of important operating and
maintenance (servicing) instructions.
This symbol is intended to alert the user to the presence of uninsulated “dangerous
voltage” within the product’s enclosure that may be of sufficient magnitude to constitute a
risk of electrical shock.

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5. WIRING CONNECTIONS
a. The UTP connections to the ST-CCTV-VBAC16 is done using the unit’s RJ45
connectors. The advantage of using the RJ45 connector is up to 4 devices can be
share a single UTP cable. If using the RJ45 connector the wiring order follows the
TIA/EIA-568B specification. All UTP wiring should correspond to the figure below:
Note there are four RJ45 connectors each assigned to a bank of channels: one for
Channels 1 –4, a second for Channels 5 –8, a third for Channels 9 –12, and the
fourth for Channels 13 –16.
When connecting multiple input devices with a single UTP cable you must follow the
connection pattern described below for each RJ45 jack:
Device 1 uses Pins 1 (+) and 2 (-)
Device 2 uses Pins 3 (+) and 6 (-)
Device 3 uses Pins 4 (-) and 5 (+)
Device 4 uses Pins 7 (+) and 8 (-)
b. If connecting a passive balun to the CCTV camera use the ST-CCTV-VB passive
video balun to transition the camera’s unbalanced output (BNC coax) to balanced
UTP.
c. If connecting an active balun to the CCTV camera use the ST-CCTV-VBAC-TX active
video balun to transition the camera’s unbalanced output (BNC coax) to balanced
UTP.
d. Make a UTP cable connection between each passive/active device’s balanced
connector and the ST-CCTV-VBAC16’s RJ45 input connectors. Up to 16 devices can
be connected. Be sure to follow the polarities and connection patterns described
above in bullet “a”.
e. Using quality 75ohm coaxial cable with BNC connectors connect the
ST-CCTV-VBAC16’s BNC output connector to a display device. Note that each
channel has 2 BNC video output connectors allowing simultaneous imaging of a
channel to two devices (e.g., DVR and monitor).
f. Connect the ST-CCTV-VBAC16’s AC power cable to the unit then plug into an
appropriately rated AC outlet.
Pin 1: White/Orange Stripe
Pin 2: Orange
Pin 3: White/Green Stripe
Pin 4: Blue
Pin 5: White/Blue Stripe
Pin 6: Green
Pin 7: White/Brown Stripe
Pin 8: Brown

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6. SETTINGS
Image brightness and sharpness may vary according to the distance between the camera and
the ST-CCTV-VBAC16. A potentiometer and set of DIP switches are assigned to each of the
ST-CCTV-VBAC16’s channels. The potentiometer is used to adjust “brightness” while the DIP
switches adjust “sharpness”. To help achieve the best image quality, first adjust the
ST-CCTV-VBAC16’s potentiometer(s) for brightness then adjust the DIP switches a described
below to compensate for distance. A switch in the “1” position represents minimum
compensation while a switch in the “4” position represent maximum compensation. Using the
table below the 4 DIP switch settings for each channel can provide up to 16 compensation
values associated with various transmission distances.
Note the above distances are for Black and White cameras and serve only as references.
Distances for Color cameras will be shorter.
Note all adjustments for brightness and sharpness should be done with a video waveform
monitor or other video test equipment. However, if such equipment is not available a video
monitor can be used.
ST-CCTV-VBAC16
UTP
coax

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7. TROUBLESHOOTING
a. Video image appears scrambled –(i) Check to be sure all UTP wiring connections and
polarities are consistent at each device and the ST-CCTV-VBAC16 RJ45 input(s).
b. Video image has some ripples –This may be caused by electro-magnetic
interference. Be certain all cables are away from any devices that may cause such
interference (e.g., electrical motors, furnaces, etc.).
c. Video image lacks brightness and/or sharpness –Adjust the ST-CCTV-VBAC16’s
potentiometer(s) for brightness and/or DIP switches for distance. A video waveform
monitor or other video test equipment should be used.
d. Can shielded twisted pair cable be used – Although shielded twisted pair cable can be
used, the cable’s high-frequency roll-off will degrade the distance performance.
Therefore, it is not recommended beyond a couple hundred feet.
e. Additional troubleshooting assistance can be found on-line at www.securitytronix.com
in addition to support from SecurityTronix sales engineers at 1-610-429-1511.