Security Tronix ST-CCTV-VBAC8 Installation guide

Brand: Security Tronix

Model: ST-CCTV-VBAC8

Type: Installation guide

Security Tronix ST-CCTV-VBAC8 is an 8-channel active UTP video receiver that transmits a balanced signal over unshielded twisted pair (UTP) cable and changes it to an unbalanced signal for a display device. It allows for clear and stable video transmission and supports various distances depending on the type of balun used. It features excellent crosstalk suppression and transient suppression protection, ensuring reliable data transfer. Additionally, the device has brightness and sharpness adjustment options for each channel, enabling optimization of image quality.

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INSTALLATION MANUAL©

ST-CCTV-VBAC8

8-Channel Active UTP Video Receiver

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PACKAGE CONTENTS

This package contains:

One ST-CCTV-VBAC8 8-channel active UTP video receiver

One AC power cord

One pair of rack mounting brackets

One installation manual

PRODUCT DESCRIPTION

The ST-CCTV-VBAC8 is an 8-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). Eight channels of video imaging simultaneously can be received over UTP cable,

processed and displayed. The ST-CCTV-VBAC8 incorporates excellent crosstalk suppression and

transient suppression protection. Color video transmission distances using the SecurityTronix

ST-CCTV-VB passive video balun are up to 4,900 feet. Use of the SecurityTronix

ST-CCTV-VBAC-TX active video balun allows a color transmission distance up to 7,850 feet.

ST-CCTV-VB ST-CCTV-VBKIT

SPECIFICATIONS

ST-CCTV-VBAC8

Specifications (Typical)

1. Color Transmission Distance

4,900 feet (passive devices), 7,850 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

5. Number of Outputs

6. Impedance

Coax BNC: 75Ω, UTP: 100Ω

7. UTP Port

Terminal Block, RJ45

8. Operating Temperature

5°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”x1.75” (excluding BNC connectors)

12. Weight

5.5 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-VBAC8 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-VBAC8 can be done using the unit’s (i)

terminal blocks or (ii) RJ45 connector. The advantage of using the RJ45 connector is

multiple devices can be connected using 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 two RJ45 connectors each assigned to a bank of channels: one for

Channels 1 – 4 and the other for Channels 5 – 8.

If connections are to be made using the unit’s terminal blocks the make the wire

connections between the camera and to the appropriate terminal blocks for the given

channel. Note it is imperative the wiring polarities at the terminal block and the

camera/balun be consistent.

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-VBAC8’s terminal blocks or RJ45 input connectors. Up

to 8 devices can be connected.

e. Using quality 75ohm coaxial cable with BNC connectors connect the

ST-CCTV-VBAC8’s BNC output connector to a display device (e.g., DVR or monitor).

Up to 8 display devices (e.g., monitors, DVRs) can be connected.

f. Connect the ST-CCTV-VBAC8’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

ST-CCTV-VBAC8

UTP

coax

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6. SETTINGS

Image brightness and sharpness may vary according to the distance between the camera and

the ST-CCTV-VBAC8. A potentiometer and set of DIP switches are assigned to each channel

on the ST-CCTV-VBAC8. 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-VBAC8’s potentiometer(s) for brightness the 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 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.

7. TROUBLESHOOTING

a. Video image appears scrambled – (i) Check to be sure all UTP wiring connections and

polarities are consistent at each device and ST-CCTV-VBAC8 input (terminal block or

RJ45 connector).

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-VBAC8’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.

Security Tronix ST-CCTV-VBAC8 Installation guide

Security Tronix ST-CCTV-VBAC8 Installation guide

Security Tronix ST-CCTV-VBAC8 Installation guide

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