Electro-Voice P1200RL, P900RL owner manual Can-Bus, CAN-Bus Cable Specifications

Page 13

Baud Rate

Bus Lenght

500 kbit/s

100 m

250 kbit/s

250 m

125 kbit/s

500 m

62.5 kbit/s

1000 m

20 kbit/s

2500 m

10 kbit/s

5000 m

CAN-BUS

The CAN-bus allows using different data rates, with the data rate being indirectly proportional to the bus length. Small networks allow baud rates up to 500kbit/s.

For sizable dimensioned networks reducing the baud rate (minimum 10kbit/s) is necessary.

The integration of repeaters is generally recommended when the bus-length exceeds 1,000m.

CAN-Bus CABLE SPECIFICATIONS

According to the ISO 11898-2 standard, CAN-bus data transfer cabling has to be carried out using Twisted-Pair cables with or without shielding providing a characteristic impedance of 120Ω . Both ends of a CAN-bus need to be terminated with 120Ω termination-plugs.

The maximum bus-length depends on the actual data transfer rate, the kind of data transfer cable being used, as well as the total number of participants on the bus. The following table shows the most essential coherencies for CAN-networks consisting of up 64 participants

 

Cable for data Transmission

 

max.

Bus Length

Resistance per

 

Termination

Cable Diameter

Data Transfer Rate

 

Unit Length

 

 

 

 

 

0 ... 40 m

< 70 mΩ/m

0.25 ... 0.34 mm²

124 Ω

1000 kbit/s bei 40 m

AWG23, AWG22

 

 

 

 

40 ... 300 m

< 60 mΩ/m

0.34 ... 0.6 mm²

127 Ω

500 kbit/s bei 100 m

AWG22, AWG20

 

 

 

 

300 ... 600 m

< 40 mΩ/m

0.5 ... 0.6 mm²

150 Ω ... 300 Ω*

100 kbit/s bei 500 m

AWG20

 

 

 

 

600 ... 1000 m

< 26 mΩ/m

0.75 ... 0.8 mm²

150 Ω ... 300 Ω*

62.5 kbit/s bei 1000 m

AWG18

 

 

 

 

*With longer cables and many participants on the CAN-bus, termination resistors with higher impedance than the specified 120Ω are recommended to reduce the ohmic load of the interface drivers and therefore the voltage drop between the two cable ends

The following table is meant for first assessment of necessary cable diameters for different bus lengths and bus-participant numbers

Bus Length

Number of Appliance on the CAN-Bus

 

32

64

100

100 m

0.25 mm² bzw. AWG24

0.34 mm² bzw. AWG22

0.34 mm² bzw. AWG22

250 m

0.34 mm² bzw. AWG22

0.5 mm² bzw. AWG20

0.5 mm² bzw. AWG20

500 m

0.75 mm² bzw. AWG18

0.75 mm² bzw. AWG18

1.0 mm² bzw. AWG17

Additionally, the length of branch lines – for participants that are not directly connected to the CAN-bus

–is also of importance. For data transfer rates of up to 125kbit/s, the maximum length of a single stub cable should not exceed 2m. For higher bit rates a maximum length of only 0.3m is still permissible. The entire length of all branch lines should not exceed 30 m.

General Note:

As long as only short distances (up to 10m) are concerned, common RJ-45 patch cables with 100Ω characteristic impedance (AWG 24 / AWG 26) can be used for the cabling inside of a rack-shelf system. The previously outlined guidelines for network cabling are mandatory as far as the rack-shelve interconnection or fixed installations are involved

13

Page 12 Page 14
Image 13
Page 12 Page 14
Contents OWNER‘S Manual Bedienungsanleitung Contents Important Service Instructions Description Unpacking & Warranty Installation Notes Front View Input a / Input B Rear PanelParallel Connection DSP OUTRS-232 Interface Rear ViewAddress Remote can BUSGROUND-LIFT Switch Power Amplifier OutputsEasy Remote Mains InputCabling Remote Control NetworkNF-VERBINDUNGSKABEL Network Examples Network Examples CAN-BUS CAN-Bus Cable SpecificationsResulting Temperature Inside the Power Amplifier Mains Operation & Resulting TemperatureMains Operation Bedienungsanleitung Frontseite Rückseite InhaltWichtige Sicherheitshinweise Beschreibung Auspacken & Garantie InstallationshinweiseFrontseite Parallel RückseiteAdresse GROUND-LIFT Schalter EndstufenausgängeNetzeingang Verkabelung Remote Control NetzwerkNETZWERK-BEISPIELE NETZWERK-BEISPIELE CAN-Bus Leitungsspezifikationen Netzbetrieb Netzbetrieb & WärmeentwicklungWärmeentwicklung in DER Endstufe DIM30 Specifications / Technische DatenPower Requirements Block Diagram Amplifier Block 483 440,5 132,5 Dimensions / AbmessungenPage Page USA

P1200RL, P900RL specifications

Electro-Voice P900RL and P1200RL are high-performance power amplifiers designed for various audio applications, including live sound reinforcement, installations, and studio settings. These amplifiers stand out in the market due to their innovative technologies and robust features, making them suitable for both professional audio engineers and audio enthusiasts.

The P900RL model delivers a powerful 900 watts per channel at 4 ohms, while the P1200RL offers an even more impressive output of 1200 watts per channel at the same impedance. This significant power enables these amplifiers to drive a wide range of loudspeakers proficiently, ensuring clean and dynamic sound reproduction with minimal distortion.

One of the key features of the P900RL and P1200RL is their efficient Class H topology. This technology improves energy efficiency by maintaining high power output with less heat. Class H amplifiers dynamically adjust their power supply voltage according to the input signal, resulting in reduced power consumption and increased longevity of the components. This makes the P series amplifiers not only powerful but also environmentally friendly.

Both models come equipped with a built-in limiter and comprehensive protection circuitry to prevent damage from overheating, short circuits, and overloading, ensuring safety and reliability in demanding environments. Additionally, the amplifiers feature a tri-mode operation, enabling them to be configured for stereo, parallel, or bridged mono setups, providing versatility for various audio applications.

The P900RL and P1200RL also include advanced signal processing capabilities, including a variable low pass filter for enhanced sound control and clarity. The integrated cooling system maintains optimal operating temperatures, allowing for extended use without the risk of thermal issues.

Audio connectivity is straightforward with both XLR and ΒΌ-inch TRS inputs, allowing the amplifiers to interface with a variety of audio sources. The professional-grade output connectors ensure secure and reliable connections to speakers, critical for live sound applications.

In conclusion, the Electro-Voice P900RL and P1200RL amplifiers offer a compelling combination of power, efficiency, and versatility. With their advanced technologies and protective features, they cater to the demanding needs of sound professionals while delivering high-quality audio performance suitable for any occasion.
Top Page Image Contents