Transcript
White Paper
Unshielded Twisted Pair (UTP) Cabling Specifications
English
Rev. 1.0.0 / 2010-08-26
UTP – Cabling Specifications
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Abstract When designing a CCTV system, UTP based structured cabling is a very cost-effective and simple cable network solution when compared to coaxial cable connections. However, some basic principles and technical specifications should be considered before planning the UTP network. This document describes the basic installation requirements and procedures for UTP networks and specifies the maximum UTP cable lengths for analogue Dallmeier UTP cameras to ensure an optimum transmission quality and reliability.
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Validity This document applies to the following Dallmeier UTP devices and accessories: • DDF3000A4 (Fix Dome) • DDF3000AV4 (Fix Dome) • DDZ3018-YY/RP/A DOMERA® (PTZ Dome) • DDZ30XX-YY/HS/A DOMERA® (PTZ Dome) • DIS-2/M UTP • DIS-2/M StreamerPro UTP • DIS-2/M StreamerPro HDD Large UTP • Power Supply Unit DPU-480W • Power Inserter • VPI-8
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Requirements In order to avoid crosstalk and unwanted image interference, only use Cat5 cables (or better) for the 100-ohm balanced UTP transmission.
3.1
Colour Coding UTP Cables The following figure illustrates the required colour coding (TIA/EIA-568-B) for unshielded twisted pair cables in conjunction with analogue Dallmeier UTP cameras:
Fig. 1: UTP cable with RJ45 (8P8C) eight-pin modular connector
Note that RJ45 (8P8C) eight-pin modular connectors must be used to terminate the twisted pair cables.
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UTP – Cabling Specifications
3.2
Pin/Pair Assignment UTP Cables The following table defines the pin/pair assignment for unshielded twisted pair cables in conjunction with analogue Dallmeier UTP cameras:
Pin
TIA/EIA-568-B Pair
Signal Fix Domes
Signal PTZ Domes
TIA/EIA-568-B Colour
1 (Tx+)
2
Video (+)
Video (+)
white/orange stripe
2 (Tx−)
2
Video (−)
Video (−)
orange/white stripe
3 (Rx+)
3
RS485 (+)
white/green stripe
4
1
Power (GND)
Power (GND)
blue/white stripe
5
1
Power (+)
Power (+)
white/blue stripe
6 (Rx−)
3
RS485 (−)
green/white stripe
7
4
Power (GND)
Power (GND)
white/brown stripe
8
4
Power (+)
Power (+)
brown/white stripe
Table 1: Pin/Pair assignment UTP cables
Video Signal Pin 1 and Pin 2 (Pair 2) are used for a differential video signal. Pin 1 is Video (+), Pin 2 is Video (−). Camera Control and Configuration Dallmeier UTP cameras can be controlled/configured by the Dallmeier UTC1 protocol (Fix Domes) or by RS485 communication signals (PTZ Domes). Pin 3 and Pin 6 (Pair 3) are used for a bi-directional serial communication, e.g. RS485. Power Pin 7 and Pin 8 (Pair 4) are used for power supply. However, it is recommended to short Pin 4 with Pin 7 and Pin 5 with Pin 8. As the effective resistance drops, more power can be transmitted.
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Up The Coax
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UTP – Cabling Specifications
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UTP Applications
4.1
DIS-2/M UTP Series and DPU-480W
DDF3000AV4
Fig. 2: UTP application with DIS-2/M StreamerPro UTP, DPU-480W and Power Inserter
In order to make the installation process more convenient, Dallmeier Power Inserters should be used. Connect one end of the twisted pair cable to the camera and the other end to the Power Inserter. Then plug the Power Inserter into the DIS-2/M UTP transceiver (e.g. DIS-2/M StreamerPro UTP). Finally, connect the power supply cables of the Power Inserter to an appropriate power supply unit. For the power supply of Dallmeier UTP cameras we recommend the use of the Dallmeier Power Unit DPU-480W (with DPU Power Plug).
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UTP – Cabling Specifications
Fig. 3: Dallmeier Power Inserter with DPU Power Plug
4.1.1
DPU Voltage Selection The DPU-480W is able to output two voltages, 24 V AC or 28 V AC. The voltages can be selected using either: • Pin 1 and Pin 2 for 24 V AC • Pin 2 and Pin 3 for 28 V AC
4.1.2
Default Voltages For the supported cameras the following default voltages should be applied: Camera Type
Default Voltage
DDF3000A4 DDF3000AV4 DDZ3018-YY/RP/A DOMERA
24 V AC ®
DDZ30XX-YY/HS/A DOMERA®
28 V AC
Table 2: Default voltages
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UTP – Cabling Specifications
4.1.3
Maximum Cable Lengths per Camera Recommended cable types: • Cat5 SF/UTP (4×2×AWG24) • Cat7 S/STP (4×2×AWG23) Output Voltage 28 V AC Cable Length Cable Type
DDF3000A4 DDF3000AV4
Cat5 (4×2×AWG24) Cat7 (4×2×AWG23)
Up to 200 m
DDZ3018-YY/RP/A DOMERA®
DDZ30XX-YY/HS/A DOMERA®
Up to 200 m
Up to 150 m
Up to 300 m
Up to 200 m
Table 3: Maximum cable lengths at 28 V AC
Output Voltage 24 V AC Cable Length Cable Type
DDF3000A4 DDF3000AV4
Cat5 (4×2×AWG24) Cat7 (4×2×AWG23)
Up to 200 m
DDZ3018-YY/RP/A DOMERA®
DDZ30XX-YY/HS/A DOMERA®
Up to 150 m
Up to 100 m
Up to 200 m
Up to 125 m
Table 4: Maximum cable lengths at 24 V AC
4.2
Video Power Inserter VPI-8 The Video Power Inserter VPI-8 supports either 12 V DC or 24 V AC output voltage for up to 8 analogue Dallmeier UTP cameras (max. 1 A per camera). In principle, we recommend 24 V AC for remote power supply. RS485 12V
24V
Dallmeier UTP Cameras
UTP Cat5
VPI-8
Fig. 4: UTP application with VPI-8
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UTP – Cabling Specifications
4.2.1
Maximum Number of Cameras For a correct power supply of the connected cameras and a proper control signal transmission (Dallmeier UTC protocol or RS485), the maximum number of the different camera types that can be connected to the VPI-8 has to be observed (see tables below). VPI-8 supplied with 24 V AC / 4.17 A via external power supply unit (PSU) Number of Cameras Cable Length*
DDF3000A4
DDZ3018-YY/RP/A DOMERA®
DDF3000AV4
Up to 80 m
DDZ30XX-YY/HS/A DOMERA®
Max. 8
Table 5: Maximum number of dome cameras at 24 V AC / 4.17 A via external PSU
OR Number of Cameras Cable Length*
DDF3000A4 DDF3000AV4
DDZ3018-YY/RP/A DOMERA®
Up to 80 m
DDZ30XX-YY/HS/A DOMERA®
Max. 2
Table 6: Maximum number of PTZ dome cameras at 24 V AC / 4.17 A via external PSU
VPI-8 supplied with 24 V AC / 1.0 A via external power supply unit (PSU) Number of Cameras Cable Length*
DDF3000A4 DDF3000AV4
Up to 50 m
DDZ3018-YY/RP/A DOMERA®
DDZ30XX-YY/HS/A DOMERA®
Max. 4
Table 7: Maximum number of dome cameras at 24 V AC / 1.0 A via external PSU
VPI-8 supplied with 12 V DC / 3.2 A via VideoNetBox (VNB) Number of Cameras Cable Length*
DDF3000A4 DDF3000AV4
Up to 20 m
DDZ3018-YY/RP/A DOMERA®
DDZ30XX-YY/HS/A DOMERA®
Max. 2
Table 8: Maximum number of dome cameras at 12V AC / 3.2 A via VNB
* per camera
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UTP – Cabling Specifications
4.2.2
Maximum Cable Lengths per Camera Recommended cable types: • Cat5 SF/UTP (4×2×AWG24) • Cat7 S/STP (4×2×AWG23) VPI-8 supplied with 24 V AC / 4.17 A via external power supply unit (PSU) Cable Length Cable Type
DDF3000A4 DDF3000AV4
Cat5 (4×2×AWG24)
DDZ3018-YY/RP/A DOMERA®
DDZ30XX-YY/HS/A DOMERA®
Up to 80 m
Cat7 (4×2×AWG23)
Table 9: Maximum cable lengths at 24 V AC / 4.17 A via external PSU
VPI-8 supplied with 24 V AC / 1.0 A via external power supply unit (PSU) Cable Length Cable Type
DDF3000A4 DDF3000AV4
Cat5 (4×2×AWG24) Cat7 (4×2×AWG23)
DDZ3018-YY/RP/A DOMERA®
DDZ30XX-YY/HS/A DOMERA®
Up to 50 m
Table 10: Maximum cable lengths at 24 V AC / 1.0 A via external PSU
VPI-8 supplied with 12 V DC / 3.75 A via external power supply unit (PSU) Cable Length Cable Type
DDF3000A4 DDF3000AV4
Cat5 (4×2×AWG24) Cat7 (4×2×AWG23)
DDZ3018-YY/RP/A DOMERA®
DDZ30XX-YY/HS/A DOMERA®
Up to 50 m
Table 11: Maximum cable lengths at 12 V DC / 3.75 A via external PSU
VPI-8 supplied with 12 V DC / 3.2 A via VideoNetBox (VNB) Cable Length Cable Type
DDF3000A4 DDF3000AV4
Cat5 (4×2×AWG24) Cat7 (4×2×AWG23)
DDZ3018-YY/RP/A DOMERA®
DDZ30XX-YY/HS/A DOMERA®
Up to 20 m
Table 12: Maximum cable lengths at 12 V DC / 3.2 A via VNB
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UTP – Cabling Specifications
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Specifications subject to change without notice. Errors and misprints excepted. © 2010 Dallmeier electronic
Dallmeier electronic GmbH & Co.KG Cranachweg 1 93051 Regensburg Germany Tel.: +49 (0) 941 87 00-0 Fax: +49 (0) 941 87 00-180 www.dallmeier.com
