Critical Communications: Dispatch

Question How can I troubleshoot IP Console and Gateway Audio Transport across a network?   Answer On initial set up of a console system, often the most frequent problem is the failure of Consoles and IP-223s to communicate across the network.  Common causes of this are: Typos in addressing, such as multicast addresses and port numbers not matching on end to end devices. Firewall turned "ON" in console computers Multicast being blocked across the network due to router settings, etc Use of the Telex “VU Meter” program (download at http://www.telex.com/us/dispatch/file?i=97544&lg=eng) is an excellent and quick way to determine if data is present on the correct port numbers. Open VU Meter with the appropriate multicast address and port number entered in the blanks. Turn the program on. Send a test call on the TX or RX port numbers and see if VU Meter indicates digital audio activity. You may open multiple instances of VU Meter to simultaneously monitor TX and RX port numbers.  Verification that audio data is being sent out on the correct address, but not arriving at the far end of the network may indicate a problem with network configurations, that is, blocking of multicast traffic. Please note that some newer switches are intelligent enough to contain routing functions, which can be unintentionally enabled in some situations.           © Copyright Bosch Security Systems All rights reserved. Text, images, graphics, sound, animations and videos as well as the arrangement of the same in Bosch offline knowledgebase (help file) are protected by copyright and other intellectual property rights. The content of these offline knowledgebase may not be copied, disseminated, altered or made accessible to third parties for commercial purposes. Some Bosch web sites may also contain text, images, graphics, sound, animations and videos subject to third party copyrights. Warranty Note This information is provided by Bosch Security Systems ''AS IS'' and without warranty of any kind, expressed or implied, including (but not limited to) any implied warranties of merchantability, fitness for any particular purpose or non-infringement. While the information provided in believed to be accurate, it may include errors or inaccuracies. Bosch Security Systems will not be liable for any damages of any kind arising from use of this tool, including, but not limited to, direct, indirect, incidental, punitive and consequential damages.  

Question How do I set up Relm RM Series Radios to 223 Series Adapter Panels?   Answer See attached           © Copyright Bosch Security Systems All rights reserved. Text, images, graphics, sound, animations and videos as well as the arrangement of the same in Bosch offline knowledgebase (help file) are protected by copyright and other intellectual property rights. The content of these offline knowledgebase may not be copied, disseminated, altered or made accessible to third parties for commercial purposes. Some Bosch web sites may also contain text, images, graphics, sound, animations and videos subject to third party copyrights. Warranty Note This information is provided by Bosch Security Systems ''AS IS'' and without warranty of any kind, expressed or implied, including (but not limited to) any implied warranties of merchantability, fitness for any particular purpose or non-infringement. While the information provided in believed to be accurate, it may include errors or inaccuracies. Bosch Security Systems will not be liable for any damages of any kind arising from use of this tool, including, but not limited to, direct, indirect, incidental, punitive and consequential damages.  

Question What EFJohnson radios can the IP-223 serially control?   Answer The IP-223 can control the following EFJohnson radios: 5300R and 5300ES. Serial control of these radios is accomplished when using the IP-25300 interface in addition to the IP-223. The IP-25300 will interface with the radio and connect to the IP-223 as a RS-485 serial converter. The radio features controlled are listed below: Monitor Clear/Secure operation Radio PTT ID for incoming calls are decoded and displayed on the console. EMERGENCY PTT ID for incoming calls are decoded and displayed on the console.   Please note that with the EFJ5300SLES radio requires a special pig tail connector for proper operation. You'll need to purchase from EFJohnson: P/N 5975357-746-01 - Description- Accessory Pigtail Connector.         © Copyright Bosch Security Systems All rights reserved. Text, images, graphics, sound, animations and videos as well as the arrangement of the same in Bosch offline knowledgebase (help file) are protected by copyright and other intellectual property rights. The content of these offline knowledgebase may not be copied, disseminated, altered or made accessible to third parties for commercial purposes. Some Bosch web sites may also contain text, images, graphics, sound, animations and videos subject to third party copyrights. Warranty Note This information is provided by Bosch Security Systems ''AS IS'' and without warranty of any kind, expressed or implied, including (but not limited to) any implied warranties of merchantability, fitness for any particular purpose or non-infringement. While the information provided in believed to be accurate, it may include errors or inaccuracies. Bosch Security Systems will not be liable for any damages of any kind arising from use of this tool, including, but not limited to, direct, indirect, incidental, punitive and consequential damages.  

Question How do you troubleshoot parasitic RF problems in Telex RoIP equipment racks?   Answer In some installations, stray RF energy can infiltrate audio lines and data lines, causing erratic operation of RoIP devices. Certain modes of radio frequency transmission can be especially prone to causing interference. Pulse type modulation that occurs in cellular TDMA systems, certain types of trunking system modulation, as well as high power transmitters, are common sources of problems. For example, a typical symptom of this phenomenon is PTT dropout. When the transmitter comes up to full power, it’s controlling IP-223 may drop the PTT, as a result of RF getting into the data stream and corrupting it. Eliminating locally radiated RF energy is the first step in determining the cause of the problem. Put a dummy load on the transmitter and retest it. If the problem ceases, chances are you have found the problem. Steps can then be taken to eliminate radiation of the RF from cables, nearby antennas, etc. In this case the antenna was too close to the equipment rack, and once it was mounted further away, the problem disappeared.   Similar procedures can identify other sources of radiating RF energy as the cause of the problem. Antenna cables with poor grounds, bad connectors, cables being too close together, etc, can cause simillar problems.           © Copyright Bosch Security Systems All rights reserved. Text, images, graphics, sound, animations and videos as well as the arrangement of the same in Bosch offline knowledgebase (help file) are protected by copyright and other intellectual property rights. The content of these offline knowledgebase may not be copied, disseminated, altered or made accessible to third parties for commercial purposes. Some Bosch web sites may also contain text, images, graphics, sound, animations and videos subject to third party copyrights. Warranty Note This information is provided by Bosch Security Systems ''AS IS'' and without warranty of any kind, expressed or implied, including (but not limited to) any implied warranties of merchantability, fitness for any particular purpose or non-infringement. While the information provided in believed to be accurate, it may include errors or inaccuracies. Bosch Security Systems will not be liable for any damages of any kind arising from use of this tool, including, but not limited to, direct, indirect, incidental, punitive and consequential damages.  

Question How do I troubleshoot audio noise with High Powered Control Stations?   Answer When using a high power transmitter connected to the IP-223, such as a 100 watt base station, electrical noise can be a problem when the station un-keys.  What can be done to diagnose and resolve the problem? Provide the IP-223(s) with a power supply that is electrically isolated from the transmitter. Properly ground the IP-223 Keep power leads away from audio lines Use double shielded coaxial cables Be sure the antenna is as far from the equipment rack as possible Make sure the power leads to the transmitter are of sufficient size for the current draw         © Copyright Bosch Security Systems All rights reserved. Text, images, graphics, sound, animations and videos as well as the arrangement of the same in Bosch offline knowledgebase (help file) are protected by copyright and other intellectual property rights. The content of these offline knowledgebase may not be copied, disseminated, altered or made accessible to third parties for commercial purposes. Some Bosch web sites may also contain text, images, graphics, sound, animations and videos subject to third party copyrights. Warranty Note This information is provided by Bosch Security Systems ''AS IS'' and without warranty of any kind, expressed or implied, including (but not limited to) any implied warranties of merchantability, fitness for any particular purpose or non-infringement. While the information provided in believed to be accurate, it may include errors or inaccuracies. Bosch Security Systems will not be liable for any damages of any kind arising from use of this tool, including, but not limited to, direct, indirect, incidental, punitive and consequential damages.  

Question How do I deal with IP-223 "False Transmit Keying" in 2 Wire Console Mode?   Answer IP-223s in Console mode, when used with a 2 wire configuration, are known to be suseptible to decoder falsing (the decoder thinks it is receiving a Transmit tone burst) when receiving high level receive signals.  This makes the IP-223 momentarily shift from Receive Mode to Transmit Mode.  The short burst of transmit audio not only causes noise on the channel, but often causes the transmitter to actually change channels, which results in dispatch traffic accidently being broadcast on incorrect channels. Two wire mode is susceptible to this because the transmit and receive audio are on the same pair of wires, and so the decoder is exposed to the receive traffic as well as transmit traffic from the console.  Voice frequencies of approximately 1950 Hz and above, with signal levels approaching 0.0 dB peaks at the input of the IP-223, can trigger this phenomenon. Resolution Changing the configuration of both ends of the circuit to 4 wire will eliminate the problem.  When 4 wire conversion is not available, a reduction of receive audio level into the radio end IP-223 should minimize, if not eliminate the problem.          © Copyright Bosch Security Systems All rights reserved. Text, images, graphics, sound, animations and videos as well as the arrangement of the same in Bosch offline knowledgebase (help file) are protected by copyright and other intellectual property rights. The content of these offline knowledgebase may not be copied, disseminated, altered or made accessible to third parties for commercial purposes. Some Bosch web sites may also contain text, images, graphics, sound, animations and videos subject to third party copyrights. Warranty Note This information is provided by Bosch Security Systems ''AS IS'' and without warranty of any kind, expressed or implied, including (but not limited to) any implied warranties of merchantability, fitness for any particular purpose or non-infringement. While the information provided in believed to be accurate, it may include errors or inaccuracies. Bosch Security Systems will not be liable for any damages of any kind arising from use of this tool, including, but not limited to, direct, indirect, incidental, punitive and consequential damages.  

Question What does Dispatch products due in the cases of missed packets (lost due to jitter or errors)?   Answer The products have a jitter buffer that allows for packets to be reordered if delivered out of sequence, if this buffer empties due to lost packets the unit will stop and restart once the "Packet delay before playback" buffer is filled.    The product looks at the source and destination address, when a correct incoming port number is recognized the unit will lock in on that source address and ignore packets coming from another source address until the first source stops sending then the second source has access. There is no protection against multiple packets from the same source address with the same multicast and port numbers as this shouldn't happen.  Add to this the same sequence bit in the packet (echoes) should never be allowed. Packets not received or lost before their play sequence (bit) time in the buffer are lost and next packets in the buffer pulled in.             © Copyright Bosch Security Systems All rights reserved. Text, images, graphics, sound, animations and videos as well as the arrangement of the same in Bosch offline knowledgebase (help file) are protected by copyright and other intellectual property rights. The content of these offline knowledgebase may not be copied, disseminated, altered or made accessible to third parties for commercial purposes. Some Bosch web sites may also contain text, images, graphics, sound, animations and videos subject to third party copyrights. Warranty Note This information is provided by Bosch Security Systems ''AS IS'' and without warranty of any kind, expressed or implied, including (but not limited to) any implied warranties of merchantability, fitness for any particular purpose or non-infringement. While the information provided in believed to be accurate, it may include errors or inaccuracies. Bosch Security Systems will not be liable for any damages of any kind arising from use of this tool, including, but not limited to, direct, indirect, incidental, punitive and consequential damages.  

Question I'm having issues trying to transport MSK (MDC or FleetSync) data across IP links (IP-223 to IP-223), and only works half the time reproducing the MSK at the far end - what can I do to fix this?   Answer There is no good answer to your question - when you look at Audio sampling rates, VOCODER algorisms/compression rates, audio packetizing for network transport, physical network transport and the regeneration of audio, these all play a part in the units ability to recreate inserted audio at the far end of IP transport.  The operation you require is not supported, we only decode MDC in the IP-223 and display it on consoles as a special ANI packet because of these known issues.             © Copyright Bosch Security Systems All rights reserved. Text, images, graphics, sound, animations and videos as well as the arrangement of the same in Bosch offline knowledgebase (help file) are protected by copyright and other intellectual property rights. The content of these offline knowledgebase may not be copied, disseminated, altered or made accessible to third parties for commercial purposes. Some Bosch web sites may also contain text, images, graphics, sound, animations and videos subject to third party copyrights. Warranty Note This information is provided by Bosch Security Systems ''AS IS'' and without warranty of any kind, expressed or implied, including (but not limited to) any implied warranties of merchantability, fitness for any particular purpose or non-infringement. While the information provided in believed to be accurate, it may include errors or inaccuracies. Bosch Security Systems will not be liable for any damages of any kind arising from use of this tool, including, but not limited to, direct, indirect, incidental, punitive and consequential damages.  

Question IP-223 will not save any web page changes, why?   Answer When you make any changes to a web page of the IP-223 you must click "Submit" before leaving that page, then click on "Save to EEPROM" (top right) and then the "Save Parameters" button for your changes to be stored. If these step do not work next check the serial number of the IP-223 on the web page interface. If it has reset itself to 12345678 and not the physical chassis serial number, please contact customer service to get an RMA as the unit will need to be reset at the factory. You can reach them at 1-800-553-5992.           © Copyright Bosch Security Systems All rights reserved. Text, images, graphics, sound, animations and videos as well as the arrangement of the same in Bosch offline knowledgebase (help file) are protected by copyright and other intellectual property rights. The content of these offline knowledgebase may not be copied, disseminated, altered or made accessible to third parties for commercial purposes. Some Bosch web sites may also contain text, images, graphics, sound, animations and videos subject to third party copyrights. Warranty Note This information is provided by Bosch Security Systems ''AS IS'' and without warranty of any kind, expressed or implied, including (but not limited to) any implied warranties of merchantability, fitness for any particular purpose or non-infringement. While the information provided in believed to be accurate, it may include errors or inaccuracies. Bosch Security Systems will not be liable for any damages of any kind arising from use of this tool, including, but not limited to, direct, indirect, incidental, punitive and consequential damages.  

Question What is the BTU (heat output) per hour for the IP-223?   Answer  The BTU for the IP-223 is 30 BTU's per hour.           © Copyright Bosch Security Systems All rights reserved. Text, images, graphics, sound, animations and videos as well as the arrangement of the same in Bosch offline knowledgebase (help file) are protected by copyright and other intellectual property rights. The content of these offline knowledgebase may not be copied, disseminated, altered or made accessible to third parties for commercial purposes. Some Bosch web sites may also contain text, images, graphics, sound, animations and videos subject to third party copyrights. Warranty Note This information is provided by Bosch Security Systems ''AS IS'' and without warranty of any kind, expressed or implied, including (but not limited to) any implied warranties of merchantability, fitness for any particular purpose or non-infringement. While the information provided in believed to be accurate, it may include errors or inaccuracies. Bosch Security Systems will not be liable for any damages of any kind arising from use of this tool, including, but not limited to, direct, indirect, incidental, punitive and consequential damages.  

Question What does the TX Group Port field do on the IP-223?   Answer The TX Group Port field is used to transmit to multiple IP-223's based on a unique TX port number.           © Copyright Bosch Security Systems All rights reserved. Text, images, graphics, sound, animations and videos as well as the arrangement of the same in Bosch offline knowledgebase (help file) are protected by copyright and other intellectual property rights. The content of these offline knowledgebase may not be copied, disseminated, altered or made accessible to third parties for commercial purposes. Some Bosch web sites may also contain text, images, graphics, sound, animations and videos subject to third party copyrights. Warranty Note This information is provided by Bosch Security Systems ''AS IS'' and without warranty of any kind, expressed or implied, including (but not limited to) any implied warranties of merchantability, fitness for any particular purpose or non-infringement. While the information provided in believed to be accurate, it may include errors or inaccuracies. Bosch Security Systems will not be liable for any damages of any kind arising from use of this tool, including, but not limited to, direct, indirect, incidental, punitive and consequential damages.  

Question How much current and voltage does the IP-223 have on the digital output pins?   Answer The IP-223 has jumpers (J8 for line 1 and J30 for line 2) to set the output voltage of either 5V DC (A position) or 12V DC (B position). Its current through 10K resistor is 1.2mA at 12V DC or 0.5mA at 5V DC.             © Copyright Bosch Security Systems All rights reserved. Text, images, graphics, sound, animations and videos as well as the arrangement of the same in Bosch offline knowledgebase (help file) are protected by copyright and other intellectual property rights. The content of these offline knowledgebase may not be copied, disseminated, altered or made accessible to third parties for commercial purposes. Some Bosch web sites may also contain text, images, graphics, sound, animations and videos subject to third party copyrights. Warranty Note This information is provided by Bosch Security Systems ''AS IS'' and without warranty of any kind, expressed or implied, including (but not limited to) any implied warranties of merchantability, fitness for any particular purpose or non-infringement. While the information provided in believed to be accurate, it may include errors or inaccuracies. Bosch Security Systems will not be liable for any damages of any kind arising from use of this tool, including, but not limited to, direct, indirect, incidental, punitive and consequential damages.  

Question What models of iDEN phones are supported with the IP-223/NI-223 adaptors?   Answer In general, if the iDEN phone has a Falcon Series connector it should work.  Below you will find a list of phones that we have tested and are known to work. Models i315 i832 i836 i730 i580 i930 i710 i205 i605 i560 i355 i325 i325IS i860 i850 i365           © Copyright Bosch Security Systems All rights reserved. Text, images, graphics, sound, animations and videos as well as the arrangement of the same in Bosch offline knowledgebase (help file) are protected by copyright and other intellectual property rights. The content of these offline knowledgebase may not be copied, disseminated, altered or made accessible to third parties for commercial purposes. Some Bosch web sites may also contain text, images, graphics, sound, animations and videos subject to third party copyrights. Warranty Note This information is provided by Bosch Security Systems ''AS IS'' and without warranty of any kind, expressed or implied, including (but not limited to) any implied warranties of merchantability, fitness for any particular purpose or non-infringement. While the information provided in believed to be accurate, it may include errors or inaccuracies. Bosch Security Systems will not be liable for any damages of any kind arising from use of this tool, including, but not limited to, direct, indirect, incidental, punitive and consequential damages.  

Question Why is the MDC Encode checkbox grayed out if I purchased the option?   Answer If configuring the IP-223 line to operate in Tone mode and MDC Encode option is required make sure the IP-223 is using Firmware 4.2 or higher, this MDC option was not supported in Tone mode prior to this.            © Copyright Bosch Security Systems All rights reserved. Text, images, graphics, sound, animations and videos as well as the arrangement of the same in Bosch offline knowledgebase (help file) are protected by copyright and other intellectual property rights. The content of these offline knowledgebase may not be copied, disseminated, altered or made accessible to third parties for commercial purposes. Some Bosch web sites may also contain text, images, graphics, sound, animations and videos subject to third party copyrights. Warranty Note This information is provided by Bosch Security Systems ''AS IS'' and without warranty of any kind, expressed or implied, including (but not limited to) any implied warranties of merchantability, fitness for any particular purpose or non-infringement. While the information provided in believed to be accurate, it may include errors or inaccuracies. Bosch Security Systems will not be liable for any damages of any kind arising from use of this tool, including, but not limited to, direct, indirect, incidental, punitive and consequential damages.