340 likes | 581 Views
GE Security. Unshielded Twisted Pair (UTP) Training. Richard Hobson May 2004. Introduction. What is UTP? UTP (Unbalanced Twisted Pair) is a new way of transmitting CCTC signal on ordinary low-cost CAT 5 type data cables using low-cost Baluns ( Bal ance Un balance) Why UTP?
E N D
GE Security Unshielded Twisted Pair (UTP) Training Richard Hobson May 2004
Introduction What is UTP? UTP (Unbalanced Twisted Pair) is a new way of transmitting CCTC signal on ordinary low-cost CAT 5 type data cables using low-cost Baluns (Balance Unbalance) Why UTP? Most new commercial (and even residential) building developments are installing CAT 5 data ‘’backbones’’ as standard for building management systems. These can be integrated TCP/IP or standard protocols (Eg: LonWorks). If there is spare unused cabling UTP CCTV can use existing installations. Cat 5 cable is significantly cheaper than traditional RG59 and can fit far more conductors into a smaller space. This can be an advantage when duct/riser space is limited, particularly in older buildings.
Benefits of UTP Immunity to noise Long distances (Over 1km) Easy wire installation Multiple video signals in the same bundle RS-422/RS-485 in the same bundle 12VDC/24VAC in the same bundle Lower cabling costs Space saving
Noise Immunity Benefits Better interference immunity from: Neighboring cables/pairs Fluorescent lights Industrial Transformers and Motors Radio Transmitters
Noise Immunity Better interference immunity because of the ‘’twist’’ in a twisted pair cable:
Why UTP? Take advantage of: Structured Building Wiring The telecom industry has developed a GREAT system employing: High density cables Colour coded Mass termination Super low cost
Where to use UTP? Locations where overall cost is less: Within or Between Bldgs Old/Listed buildings Elevators Hospitals Prisons Casinos Schools Office Developments Shopping Malls Hotels/Resorts Warehouses Amusement Parks Apartment Complexes Parking Garages Mass Transit Systems Entry Gates Traffic Control
Comparisons Coax Fiber Ethernet / IP Based Transmission
Comparisons: vs Coax UTP vs. Coax 100 cables RG-59 Coax 1,100 pairs Category 3 UTP 100 pairs Category 3 UTP
Comparisons: vs coax Smaller conductors More dense More flexible Colour coded Superior interference immunity
Comparisons: vs coax Surge suppression (built-in) Active units w/built-in ground lifting Active units w/built-in gain control Long distances (up to 1.2 Km) Low wire costs (sometimes it’s free!) Use coax for short runs, under 100 meters
Comparisons: vs Fiber Less complexity and special skills needed for installation Lower cable cost Similar features with lower Tx/Rx cost No power required (many cases) No minimum bend radius issues Lower cost termination tools & test equipment No dB loss calculations
Comparisons: Ethernet Much longer distance (100 meter TCP/IP limit between camera and hub) No limited bandwidth issues specified by IT managers No “frame rate” comparison (all images are Real Time) Analogue vs Digital No picture degradation due to compression artifacts Put the IP requirement at the head-end, not at the cameras
UTP Limitations Base-band only (not for CATV) Active units do not support“ up-the-coax” P/T/Z controls Not “broadcast” quality (>800 lines) Distance limited to 1200 meters, point-to-point Remember! Do NOT use SHIELDED wire Do NOT use UN-TWISTED wire
Wire Types Bad Shielded wire: Don’t use Quad wire: Don’t use, Not Twisted! Red Green Yellow Black Bad Category 1 & 2 - Voice grade OK (300M max) OK for some transceivers Category 3 – Telephone/Voice/data grade OK (300M max) OK for most transceivers Category 5+ - High speed Excellent
Passive Equipment: Passive up to 400 meters Supports “up-the-coax” P/T/Z controls Built-in surge suppression All units are transceivers so can be deployed at either end Multi Standard NTSC, PAL, SECAM
Active Equipment: Up to 1200 meters (colour). Longer with Mono Does not support “up-the-coax” P/T/Z controls Use RS-422 or RS-485 if going longer or large camera count Built-in ground lifting and gain control Surge suppression for outdoor applications Multi Standard NTSC, PAL, SECAM
Basic product type: There are two basic types of UTP transceivers :- Passive and Active These can be used in one of the following three ways depending on distance and type of cable used Passive Active
Passive to Passive (400M Cat5) Passive is the simplest type of UTP Balun It does not need an external power source, but does have distance limitations Passive Tx/Rx are always transceivers, so units can be used at either end of the system
Passive to Active (800M Cat5) Passive to Active has the advantage of extended range (800M), plus it does not need external power down at the camera end The Active receivers can be individually specified and powered or utilise rack mount hubs for easy installation
Active to Active (1.2km Cat5) Active to Active has the advantage of of super extended range (1200M), Active receivers offer extra noise immunity and surge protection Active transmitters and receivers need 12Vdc at camera and receiver ends to operate Active transmitters have 3 position gain switch (L,M,H) and active receivers have a 5 position gain switch depending on cable length used. First set the 5 position DIP switch on the receiver depending on cable length deployed Meters (Cat 5) Position 1 = 0-200 Position 2 = 200-500 Position 3 = 500-800 Position 4 = 800-1100 Position 5 = 1100-1500 Then, if necessary set the Transmitter gain to Low, Medium or High to achieve a 1 volt Pk to Pk video signal
Standard camera examples GE-TTP111VT 400 METERS GE-TTP111VL GE-TTP111VT 1-4 Cameras GE-TTP414V 400 METERS GE-TTP111VT
Standard camera examples (cont) GE-TTP111VT 1-16 Cameras GE-TPP016 400 METERS GE-TTP111VT 800 METERS GE-TTP111VL GE-TTA111VR GE-TTA111V Kit 1200 METERS GE-TTA111VT GE-TTA111VR
Passive Plus Pack (KTCB-UTP) To Passive receivers 400 METERS GE-TTP111VT KTCB-UTP 400 METERS GE-TTP111VL 400 METERS GE-TTP414V 1-16 cameras GE-TPP016 400 METERS
Passive Plus Pack to Active receivers 800 METERS GE-TTA111VR 1-4 cameras 800 METERS GE-TTA414VR 1-8 cameras 800 METERS GE-TPA008 1-16 cameras 800 METERS GE-TPA016
The UTP passive transmitters can be ordered separately for all GE domes KTS-275 CyberDome UTP interface board KTA-20T CyberDome Wall bracket with passive UTP interface included
Passive UTP dome interface option to Passive or Active receivers GE-TTP111VT 400 METERS GE-TTP414V 400 METERS Note: RS422 Control signals are sent down separate conductor pair in the same bundle 800 METERS GE-TTA111VR GE-TPA016 800 METERS
TPN009 2U Rack Mounting Panel ·Standard 19-inch (482mm) wide, 3.5-inch (90mm) 2U high. ·Supports up to 9 pieces GE-TTA111VR or GE-TTA111VT ·This heavy-gauge panel is designed to withstand the mechanical load of multiple cables. Application: