DCN Wireless Installation and User Instructions en Wireless discussion system
DCN Wireless | Installation and User Instructions | Important Safeguards Important Safeguards Before you install or operate the DCN Wireless digital congress network, you must read the Important Safety Instructions. The Important Safety Instructions are supplied together with the central control unit.
DCN Wireless | Installation and User Instructions | Disclaimers Disclaimers CobraNet is a trademark of Peak Audio — a division of Cirrus Logic, Inc. — in the United States and/or other countries.
DCN Wireless | Installation and User Instructions | About this manual en | 5 About this manual Signs Function The Installation and User Instructions shows each admonition with a sign. The sign shows the effect if you do not obey the instruction. The Installation and User Instructions gives the installers and the operators the necessary data to install, configure and operate a basic DCN Wireless Discussion System. Admonition General sign for cautions and warnings.
DCN Wireless | Installation and User Instructions | About this manual en | 6 Electro-static discharges Conversion tables Electro-static discharges can damage electric components. You must take measures to prevent electro-static discharges when you touch PCBs (refer to figure 1). Length, mass and temperature are in SI units. Refer to the data below to change SI units to imperial units. 1 2 3 4 5 table 2: Conversion of units of length 1 in = 25.4 mm 1 mm = 1 in = 2.54 cm 1 cm = 1 ft = 0.
DCN Wireless | Installation and User Instructions | Table of Contents en | 7 Table of Contents Important Safeguards ..................................................................................................................................................3 Disclaimers ......................................................................................................................................................................4 About this manual ................................................
DCN Wireless | Installation and User Instructions | Table of Contents en | 8 9. Technical data .............................................................................................................................................................................. 32 9.1 System electrical and electro-acoustic characteristics ............................................................................................... 32 9.2 Environmental conditions ..................................................
DCN Wireless | Installation and User Instructions | Table of Contents en | 9 15. DCN-MICL, DCN-MICS Pluggable Microphones ................................................................................................................ 89 15.1 Introduction ............................................................................................................................................................................ 89 15.2 Controls, connectors and indicators .....................................
DCN Wireless | Installation and User Instructions | Table of Contents Intentionally left blank.
DCN Wireless | Installation and User Instructions | System Design and Planning Section 1 - System Design and Planning Bosch Security Systems | 2007-02 | 9922 141 70691 en en | 11
DCN Wireless | Installation and User Instructions | System Design and Planning 1 1.1 Wireless network design Introduction The DCN Wireless has three parts: the wireless network, the DCN and the optical network. This chapter tells how to design the wireless network. 1.2 1.3 Frequency band 1.3.1 802.11g specification en | 12 The wireless network is based on the 802.11g specification for WiFi technology. Devices that comply to the 802.11g specification operate in frequency bands between 2.4000 and 2.
2.472 2.484 GHz 2.422 2.427 2.432 2.437 2.442 2.447 2.452 2.457 2.462 2.467 2.472 2.484 GHz 3 4 5 6 7 8 figure 1.3: Example of interference Bosch Security Systems | 2007-02 | 9922 141 70691 en 9 10 11 12 13 1 2.467 1 2.462 2.457 2.452 2.447 0 2.442 2.437 2.432 2.427 2.422 2.417 2.417 2.412 2.400 GHz 2 0 2.412 figure 1.2: DCN wireless carriers 1 2.400 GHz 2.422 2.427 2.432 2.437 2.442 2.447 2.452 2.457 2.462 3 4 5 6 7 8 9 10 11 13 2.484 GHz 2.472 2.467 2.
DCN Wireless | Installation and User Instructions | System Design and Planning 2 DCN design 2.4 en | 14 Limits Make sure that these limits are not exceeded when you design the DCN: 2.1 Introduction The DCN Wireless has three parts: the wireless network, the DCN and the optical network. This chapter tells how to design the DCN. 2.2 Calculation tool The calculation tool makes the planning and design of the DCN easier.
DCN Wireless | Installation and User Instructions | System Design and Planning Limit 5: Cable lengths Refer to section 2.7: • With regenerative tap-offs, the maximum cable length is 250 m from the central control unit to the furthest device in any branch of the DCN. • The maximum cable length from the central control unit to the first regenerative tap-off is 100 m. • The maximum length of the cable between regenerative tap-offs is 100 m. • Open-ended cables can cause an incorrect operation of the system.
DCN Wireless | Installation and User Instructions | System Design and Planning 2.6.3 Power supplies 2.6.3.3 2.6.3.1 Introduction The devices that supply power to the DCN are the central control unit and the extension power supply (refer to figure 2.1 and figure 2.2). The power that the central control unit supplies includes the power that the optical network uses. 2.6.3.
DCN Wireless | Installation and User Instructions | System Design and Planning 2.6.4 Overload indication Each DCN socket of the central control unit and extension power supply has a red LED that comes on to show that there is a power overload. An overload occurs when: • The necessary power for the devices is greater than that is supplied. • A short-circuit occurs. 2.7 Cable lengths 2.7.
DCN Wireless | Installation and User Instructions | System Design and Planning en | 18 2.7.5.5 Graph The power correction graph (refer to figure 2.3) corrects the power level to compensate for the extension cables. Do as follows: 1 Find the total power consumption (refer to section 2.7.5.3) on the vertical axis (Y) of the power correction graph. For example, 40 W. 2 Find the length of the longest extension cable sequence (refer to section 2.7.5.4) on the horizontal axis (X) of the power correction graph.
DCN Wireless | Installation and User Instructions | System Design and Planning 2.8 Examples 2.8.1 Cable lengths en | 19 DCN-WCCU Legend R Regenerative tap-off P Power overload RS 232 Port 1 RS 232 Port 2 Mains Network Audio In 1 Audio Out 1 Audio In 2 Trunk 1 2 1 2 Audio Out 2 230 Fault NC C C NO 48V 115: 100-120V 230: 220-240V 48V Trunk T2.
DCN Wireless | Installation and User Instructions | System Design and Planning 2.8.2 en | 20 Power correction DCN-WCCU RS 232 Port 1 RS 232 Port 2 Mains Network Audio In 1 Audio Out 1 Trunk 1 2 48V 48V 1 2 Audio In 2 Audio Out 2 230 Fault NC C C NO 115: 100-120V 230: 220-240V 50 m 50-60Hz 50-60Hz T2.5A 250V T2A H 250V 20 m 3 3 LBB4114/00 2 4 LBB4114/00 2 10 m LBB4114/00 2 2 4 LBB4114/00 2 LBB4114/00 4 figure 2.5: Example with interpreter desks (DCN-IDESK) table 2.
DCN Wireless | Installation and User Instructions | System Design and Planning 2.9 Interpretation devices The maximum number of interpreter desks you can install in an interpreter booth is six. Refer to figure 2.6 and figure 2.7 for two examples that use LBB4114/00 Trunk Splitters and LBB4115/00 Protected Trunk Splitters. With an LBB4114/00 Trunk Splitter, you can connect the interpreter desks in series (refer to figure 2.6).
DCN Wireless | Installation and User Instructions | System Design and Planning 3 3.1 Optical network design 3.4 Introduction Each device in the optical network has a number of nodes (refer to table 3.1). The maximum number of nodes in the optical network is 63. The DCN Wireless has three parts: the wireless network, the DCN and the optical network. This chapter tells how to design the optical network. 3.
DCN Wireless | Installation and User Instructions | System Design and Planning 3.5.3 Power supply 3.5.4 The device that supplies power to the optical network is the central control unit, refer to figure 3.1. The power that the central control unit supplies includes the power that the DCN uses. DCN-WCCU RS 232 Port 1 RS 232 Port 2 en | 23 Overload indication Each optical network socket of the central control unit has a red LED that comes on to show that there is a power overload.
DCN Wireless | Installation and User Instructions | System Design and Planning 3.6.3 Optical fiber length 3.6.5 Because of optical attenuation, the maximum length of optical network cables (LBB4416) is 50 m. You can use GOF and fiber interfaces to increase the distance between devices to a maximum of 1500 m. Note If the distance between two devices is less than 100 m, use a network splitter between devices to remove the use of fiber interfaces.
DCN Wireless | Installation and User Instructions | System Design and Planning 3.6.6 Bending The minimum bend radius of a 90 degree bend in an LBB4416 cable is 110 mm (refer to figure 3.3). A 180 degree bend is the same as two 90 degree bends. R=110 mm figure 3.3: Bend radius 3.6.7 Coiling The minimum coiling radius of an LBB4416 cable is 110 mm (refer to figure 3.4). R=110 mm figure 3.4: Coiling radius 3.7 Example layouts 3.7.
DCN Wireless | Installation and User Instructions | System Design and Planning 3.7.2 Basic optical network 3.7.4 Refer to figure 3.5 for an example of a basic optical network. DCN-WCCU en | 26 Redundant cables The example of the extended optical network (refer to figure 3.6) has no redundant cable. If the cable between the central control unit (DCN-WCCU) and the wireless access point (DCN-WAP) breaks, the central control unit cannot transmit data to the wireless access point.
DCN Wireless | Installation and User Instructions | System Design and Planning 3.7.5 Tap-offs The network splitter (LBB4410/00) lets you make tap-offs (refer to figure 3.8 for an example). Tap-offs cannot be redundant. If the cable between the network splitter and the digital audio expander (PRS-4DEX4) becomes defective, the digital audio expander has no connection to the central control unit. DCN-WCCU DCN-WAP LBB4410/00 PRS-4DEX4 INT-TX figure 3.
DCN Wireless | Installation and User Instructions | System Design and Planning 4 Camera control 5 en | 28 Infra-red wireless language distribution 4.1 Introduction The central control unit can automatically point video cameras in the direction of the delegate or chairman who speaks. You can connect video cameras to the central control unit through a video switcher or directly to the central control unit.
DCN Wireless | Installation and User Instructions | System Design and Planning 6 CobraNet CobraNet is a standard for the transport of real-time digital audio and control data through an Ethernet network. A CobraNet network can transport a maximum of 64 channels of 48 kHz, 20-bit audio through a 100 Mbit link connection in each direction. Many manufacturers of professional audio devices support the CobraNet standard.
