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1. e Enable portfast on all switch ports that have ServSwitch Agility units attached to them or try temporarily disabling STP on the switches while ServSwitch iPath is attempting to locate ServSwitch Agility units 724 746 5500 blackbox com Page 39 ServSwitch Agility and Agility Dual Appendix C Glossary C 1 Internet Group Management Protocol Where an ServSwitch Agility transmitter is required to stream video to two or more receivers multicasting is the method used Multicasting involves the delivery of identical data to multiple receivers simultaneously without the need to maintain individual links When multicast data packets enter a subnet the natural reaction of the switches that bind all the hosts together within the subnet is to spread the multicast data to all of their ports This is referred to as Multicast flooding and means that the hosts or at least their network interfaces are required to process plenty of data that they didn t request IGMP offers a partial solu tion The Internet Group Management Protocol IGMP is designed to prevent multicast flooding by allowing Layer 3 switches to check whether host computers within their care are interested in receiving particular multicast transmissions They can then direct multi cast data only to those points that require it and can shut off a multicast stream if the subnet has no recipients There are currently three IGMP versions 1 2 and 3 with each version building upon
2. ServSwitch Agility Dual Reserved Fiber Gigabit module Ethernet slot port Indicators These six indicators clearly show the key aspects of operation e NET On when valid network link is present Flashes when the unit is in error e SER On when the AUX serial port is enabled and active e AUD On when audio is enabled and active e USB On when USB is enabled and active e DVI On when DVI video is enabled e PWR Power indicator Figure 2 7 ServSwitch Agility Dual local transmitter unit front panel Figure 2 8 shows the connectors located on the rear panel of the local transmitter unit CC USE ONLY options gt DV D i B DVKD 2 Mj ur AUX om 5 00 eco l12 INE our 5V 2 5A COMPUTER Primary Secondary Audio AUX port video video line serial input input in out port input Configuration switches Figure 2 8 ServSwitch Agility Dual local transmitter unit rear panel 724 746 5500 blackbox com Page 11 ServSwitch Agility and Agility Dual 2 6 2 ServSwitch Agility Dual remote receiver unit The smart front faces feature the operation indicators as shown in Figure 2 9 lt 5BLACK BOX ServSwitch Agility Dual REMOTE NET SER AUD USB DVI PWR E Reserved Fiber Gigabit module Ethernet slot port Indicators These six indicators clearly show the key aspects of operation NET On when valid network link is present Flashes whe
3. q lt gt BLACK BOX ACR1000A ACR1000A T ACR1000A R NETWORK SERVICES ACR1002A ACR1002A T ACR1002A R lt gt BLACK BOX E ServSwitch Agility J Li BLACK BOX KVMoIP EXTENDER SER AUD USB DVI PWR ES i 1 A LC O Mte hA MU Dual BLACK BOX KVMo lP EXTENDER TE F Customer Order toll free in the U S Call 877 877 BBOX outside U S call 724 746 5500 Support FREE technical support 24 hours a day 7 days a week Call 724 746 5500 or fax 724 746 0746 Inf ti Mailing address Black Box Corporation 1000 Park Drive Lawrence PA 15055 1018 ION Web site www blackbox com E mail info blackbox com ServSwitch Agility and Agility Dual Trademarks Used in this Manual Black Box and the Double Diamond logo are registered trademarks and ServSwitch is a trademark of BB Technologies Inc Mac is a registered trademark of Apple Computer Inc Linux is registered trademark of Linus Torvalds Windows is a registered trademark of Microsoft Corporation NetWare is a registered trademark of Novell Inc Sun is a trademark of Sun Microsystems Inc Unix is a registered trademark of UNIX System Laboratories Inc BSD is a registered trademark of UUNet Technologies Inc Any other trademarks mentioned in this manual are acknowledged to be the property of the trademark owners We re here to help If you have any questions about your application or our products contact Black Box Tech Support at 724 746 5500 or go to blackbox com and click o
4. also see Appendix A Tips for success when networking Agility units Page 8 724 746 5500 blackbox com Chapter 2 Overview 2 5 ServSwitch Agility unit features The ServSwitch Agility units are housed within durable metallic enclosures with most connectors situated at the rear panel only the Ethernet ports are situated at the front panel 2 5 1 ServSwitch Agility local transmitter unit The smart front faces feature the operation indicators as shown in Figure 2 3 BLACK BOK ServSwitch Agility NET SER AUD USB DVI PWR Indicators These six indicators clearly show the key aspects of operation Gigabit Ethernet e NET On when valid network link is present port Flashes when the unit is in error e SER On when the AUX serial port is enabled and active e AUD On when audio is enabled and active e USB On when USB is enabled and active e DVI On when DVI video is enabled e PWR Power indicator Figure 2 3 ServSwitch Agility local transmitter unit front panel Figure 2 4 shows the connectors located on the rear panel of the local transmitter unit CE USE ONLY formons LINEOUT LINEIN OH 6 eco 12 5V 2 5A COMPUTER Power USB Video Audio AUX input port input line serial in out port Configuration switches Figure 2 4 ServSwitch Agility local transmitter unit rear panel 724 746 5500 blackbox com Page 9 ServSwitch Agility and Agility Dual 2 5 2 ServS
5. be guaranteed if a 20W power adapter is used Always ensure that only the supplied or authorized replacement 5 volt power supplies are used to power the units 2 5A 12 5W Max 4A 20W Max Figure 3 24 How to differentiate the power supplies for the ServSwitch Agility and Agility Dual 724 746 5500 blackbox com Page 29 ServSwitch Agility and Agility Dual 4 Configuration 4 1 Initial configuration Where a Agility or Agility Dual local and remote units are directly linked to each other no configuration action is required provid ed they have their factory default settings in place If the standard settings have been changed in a previous installation you merely need to perform a factory reset on each unit please see section 4 1 3 below 4 1 2 Networked linking Where Agility or Agility Dual units are connected via networked links you can either configure them individually or configure them collectively using a ServSwitch Path manager Configuring networked Agility and Agility Dual units individually You need to specify the network addresses of the Agility units so that they can locate each other This is done by running the browser based configuration utility on a computer system linked to the same network as the Agility units e Configuring Agility and Agility Dual units collectively The ServSwitch Path manager allows you to configure control and coordinate any number of Agility local and remote units f
6. high resolution video display at pixel clocks up to 330MHZ 3 2 7 1 To connect a single DVI display to the ServSwitch Agility 1 Connect the lead from the video display to the DVI D socket on the rear panel of the ServSwitch Agility remote unit See Figure 3 16 DVI D connection from video display Figure 3 16 Connect the digital video link cable to the DVI D socket Page 24 724 746 5500 blackbox com Chapter 3 Installation 3 2 7 2 To connect a single DVI display to the ServSwitch Agility Dual 1 Use either a standard or Dual Link DVI D cable to connect the video display to the DVI D 1 connector of the ServSwitch Agility Dual remote unit See Figure 3 17 Note For very high resolution displays a dual link cable must also be used at the Local unit from video display Figure 3 17 Connect the standard or dual link digital video cable to the DVI D 1 socket 3 2 7 3 To connect two DVI displays to the ServSwitch Agility Dual 1 Connect your primary DVI display to the DVI D 1 socket and your second DVI display to the DVI D 2 socket on the Remote unit rear panel See Figure 3 18 From secondary video display From primary video display Figure 3 18 Connect two standard DVI D link cables to the DVI D 1 and DVI D 2 sockets 724 746 5500 blackbox com Page 25 ServSwitch Agility and Agility Dual 3 2 8 Remote Microphone amp Speakers ServSwitch Agility and Agility Dual remote units can support a microphone as w
7. perform their most onerous tasks e g IGMP snooping using multiple dedicated processors ASICS e Ensure the maximum number of concurrent snoopable groups the switch can handle meets or exceeds the number of ServSwitch Agility transmitters that will be used to create multicast groups e Check the throughput of the switch Full duplex 1Gbps up and down stream speeds per port Use the same switch make and model throughout a single subnet You also need a Layer 3 switch Ensure that it can operate efficiently as an IGMP Querier A 2 1 Layer 2 and Layer 3 switches known to work e Cisco 2960 e Cisco 3750 e Cisco 4500 e Cisco 6500 e Extreme Networks X480 e HP Procurve 2810 e HP Procurve 2910 e H3C 5120 e HuaWei Quidway s5328cE1 Layer 3 724 746 5500 blackbox com Page 35 ServSwitch Agility and Agility Dual A 3 Creating an efficient network layout Network layout is vital The use of IGMP snooping also introduces certain constraints so take heed e Keep it flat Use a basic line cascade structure rather than a pyramid or tree arrangement e Keep the distances between the switches as short as possible e Ensure sufficient bandwidth between switches to eliminate bottlenecks e Where the ServSwitch iPath manager is used to administer multiple ServSwitch Agility transceivers ensure the ServSwitch iPath manager and all ServSwitch Agility units reside in the same subnet e Do not use VGA to DVI converters instead rep
8. the off up position to enable normal operation of the unit Power lead from power supply Figure 3 23 Connect the power supply to the rear panel power socket 2 Connect the IEC connector of the supplied country specific power lead to the socket of the power adapter 3 Connect the power cord to a nearby power supply socket When all other connections have been made switch on the power supply unit Note Both the unit and ts power supply generate heat when in operation and will become warm to the touch Do not enclose them or place them in locations where air cannot circulate to cool the equipment Do not operate the equipment in ambient tem peratures exceeding 40 C Do not place the products in contact with equipment whose surface temperature exceeds 40 C 3 2 11 1 Power supply identification Due to the increased power requirements of the ServSwitch Agility Dual units these models are supplied with larger capacity 20W power adapters The standard 12 5W and higher power 20W adapters use identical housings so within installations where both types are used you need to double check the underside labels to differentiate the two types 12 5W model 20W model for Agility for Agility Dual No damage will be caused if the 12 5W adapter p n PS649 R3 and the 20W adapter p n PS650 are used in place of each other on either of the Agility or Agility Dual units However correct operation of Agility Dual units can only
9. these can help to increase data efficiency e Background Refresh The transmitter sends portions of the video image only when they change In order to give the best user experience the transmitter also sends the whole video image at a lower frame rate in the background The Background Refresh parameter controls the rate at which this background image is sent The default value is every 32 frames meaning that a full frame is sent in the background every 32 frames Reducing this to every 64 frames or more will reduce the amount of bandwidth that the transmitter consumes On a high traffic network this parameter should be reduced in this way to improve overall system performance e Color Depth This parameter determines the number of bits required to define the color of every pixel The maximum and default value is 24 bit By reducing the value you can significantly reduce bandwidth consumption at the cost of video color reproduction Peak Bandwidth Limiter The transmitter will employ a best effort strategy in sending video and other data over the IP net work This means it will use as much of the available network bandwidth as necessary to achieve optimal data quality although typically the transmitter will use considerably less than the maximum available In order to prevent the transmitter from hogging too much of the network capacity you can reduce this setting to place a tighter limit on the maximum bandwidth pe
10. 2 Black Box Corporation All rights reserved ACR1002A rev 2 724 746 5500 blackbox com
11. 4 746 5500 blackbox com Page 33 ServSwitch Agility and Agility Dual 6 Further information This chapter contains a variety of information including the following e Appendix A Tips for success when networking Agility units e Appendix B Troubleshooting e Appendix C Glossary e Appendix D RS232 null modem cable e Appendix E Safety information Page 34 724 746 5500 blackbox com Appendices Appendix A Tips for success when networking Agility units Agility units use multiple strategies to minimise the amount of data that they send across networks However data overheads can be quite high particularly when very high resolution video is being transferred so it is important to take steps to maximise net work efficiency and help minimise data output The tips given in this section have been proven to produce very beneficial results A 1 Summary of steps e Choose the right kind of switch Create an efficient network layout Configure the switches and devices correctly A 2 Choosing the right switch Layer 2 switches are what bind all of the hosts together in the subnet However they are all not created equally so choose care fully In particular look for the following e Gigabit 1000Mbps or faster Ethernet ports e Support for IGMP v2 or v3 snooping e Support for Jumbo frames up to 9216 byte size e High bandwidth connections between switches preferably Fiber Channel e Look for switches that
12. Dual Link very high Resolution video display at pixel clocks up to 330MHz equating to an example display mode of 2560 x 1600 at 60 Hz refresh 3 2 1 1 To make a single video link on ServSwitch Agility 1 Wherever possible ensure that power is disconnected from the ServSwitch Agility and the host computer 2 Connect a standard DVI D link cable to the DVI D socket on the Local unit rear panel See Figure 3 3 DVI D link from host computer Figure 3 3 Connect a standard DVI D link cable to the DVI D socket 3 Connect the plug at the other end of the cable to the corresponding video output socket of the host computer Page 16 724 746 5500 blackbox com Chapter 3 Installation 3 2 1 2 To make a single video link on ServSwitch Agility Dual Use either a standard DVI D cable or optionally a Dual Link DVI D cable to connect the primary video port of the computer system to the DVI D 1 connector of the ServSwitch Agility Dual For dual link connections a similar dual link cable must also be used at the remote unit 1 Wherever possible ensure that power is disconnected from the ServSwitch Agility Dual and the host computer 2 Connect a standard or dual DVI D link cable to the DVI D 1 socket on the Local unit rear panel See Figure 3 4 Standard or dual link cable from host computer Figure 3 4 Connect a standard or dual link DVI D cable to the DVI D 1 socket 3 Connect the plug at the other end of the cable to the correspo
13. If any hosts will use any video resolutions using 2048 horizontal pixels e g 2048 x 1152 ensure that Jumbo Frames are enabled on all switches Choose an appropriate forwarding mode on all switches Use Cut through if available otherwise Store and forward Optimise the settings on the ServSwitch Agility transmitters e f color quality is important then leave Colordepth at 24 bits and adjust other controls e f moving video images are being shown frequently then leave Frame Skipping at a low percentage and instead reduce the Peak bandwidth limiter and Colordepth e Where screens are quite static try increasing the Background Refresh interval and or increasing the Frame skipping percent age setting Make changes to the ServSwitch Agility transmitters one at a time in small steps and view typical video images so that you can attribute positive or negative results to the appropriate control Ensure that all ServSwitch Agility units are fully updated to the latest firmware version at least v2 1 724 746 5500 blackbox com Page 37 ServSwitch Agility and Agility Dual Appendix B Troubleshooting Problem The video image of the ServSwitch Agility receiver shows horizontal lines across the screen This issue is known as Blinding because the resulting video image looks as though you re viewing it through a venetian blind When video is transmitted by ServSwitch Agility units the various lines of each screen are divided up and
14. U compact case robust metal design 0 75kg 1 65lbs Rack mount kits Single RMK2004 or dual units RMK2004 2 per 1U slot VESA monitor wall mount chassis kit RMKVESA 100 240VAC 50 60Hz 0 5A 5VDC 12 5W 0 C to 40 C 32 F to 104 F CE FCC ServSwitch Agility Dual Casing w x h x d Construction Weight Mount kits Input Power Output Power Operating Temperature Approvals 198mm 7 92 x 44mm 1 76 x 145mm 5 7 1U compact case robust metal design 1 11kg 2 44lbs Rack mount kits Single RMK2004 or dual units RMK2004 2 per 1U slot VESA monitor wall mount chassis kit RMKVESA 100 240VAC 50 60Hz 0 8A 5VDC 20W O C to 40 C 32 F to 104 F CE FCC Page 6 724 746 5500 blackbox com Chapter 2 Overview 2 Introduction Thank you for choosing the ServSwitch Agility range which represents a major advancement in the capabilities of digital extenders and switches By encoding high quality DVI video audio and USB connections into Internet Protocol IP messages ServSwitch Agility offers highly advanced and flexible signal switching capabilities Our extensive knowledge of interfacing techniques and high speed networking has allowed us to develop new ways to break the chains of local DVI USB and audio connections With ServSwitch Agility distance is finally no barrier to high specification and high performance computing Furthermore since all signals are now IP the most elabor
15. a ServSwitch Agility unit and a computer This configuration utility allows you to perform all of the following functions e View edit the IP network address and netmask e Configure separate IP network addresses for video audio and USB e Configure multicast settings on Remote units e Configure video bandwidth settings on Local units e View the current video output on Local units e Perform a firmware upgrade e Perform a factory reset 4 1 4 1 Connecting a Computer System for Browser Based Configuration 1 Connect a suitable network cable to the Ethernet port on the front panel of the ServSwitch Agility unit See Figure 4 2 ServSwitch Agilit did ServSwitch Agility Dual Figure 4 2 Connect the ServSwitch Agility to a suitable network switch 2 Connect the other end of the link cable to a network switch 3 Similarly link your computer to the same or different switch located on the same network Note A Gigabit connection is not essential for configuration purposes 4 If not already switched on power up your computer and the ServSwitch Agility unit You are now ready to use the browser based configuration utility 4 1 4 2 Accessing the Browser Based Configuration Utility 1 Temporarily connect the ServSwitch Agility or Agility Dual unit and a computer via a network as discussed above 2 Run a web browser on your computer and enter the IP address of the ServSwitch Agility unit e g http 169 254 1 33 The defa
16. anel 3 Once the unit has been fully connected and powered on access the RX System Configuration page to check that the Audio Input Type setting matches the connection that you have made to the port line mic or mic boost the latter provides 20dB gain Page 26 724 746 5500 blackbox com Chapter 3 Installation 3 2 9 USB Devices ServSwitch Agility and Agility Dual remote receiver units have four USB ports to which peripherals may be connected The ports are interchangeable To connect more than four peripherals one or more USB hubs may be used The total current that may be drawn from the USB ports is 1 2A which should be sufficient for a keyboard mouse no more than 100mA each and any two other devices 500mA maximum each If more power for USB devices is required use a powered USB hub 1 Connect the lead from the device to any of the four USB sockets on the rear panel of the ServSwitch Agility unit See Figure 3 21 Figure 3 21 Connecting a USB device to the remote receiver unit 3 2 9 1 Supported USB Devices USB devices are supported using True Emulation technology This means that the signals of each USB peripheral are emulated to the computer so that full functionality is available subject to the following limitations e Keyboards mice and other HID devices are supported e Storage devices i e flash drives USB hard disks CD ROM drives are supported but they may operate more slowly than with a direct connec
17. aparato o C El aparato ha sido expuesto a la lluvia o D El aparato parece no operar normalmente o muestra un cambio en su desempe o o E El aparato ha sido tirado o su cubierta ha sido da ada Page 4 724 746 5500 blackbox com Table of Contents Contents 1 Spec Cati td ere i dad der nme RE ea or lun A Fate deed 6 Paseo M ala 7 2 41 One to One Configuratio 5 rcs ir tertio rette rere ns a ee eem odore dat Lesben ae ER eee Cea iret at duod es 7 2 2 One to Many ConftgBratiOn ie tete ueniet erm d eene e erit ed tne peice were rs da eu pee cee 7 2 3 Mixing ServSwitch Agility and Agility Dual units ooo nana 8 2 4 ServSwitch Agility Dual and ServSwitch iPath sss nennen 8 2 5 ServSwitch Agility unit features nennen nentes nnne nre nnt nnns 9 2 6 ServSwitch Agility Dual unit features nennen nennen netten tnn 11 VA duis e 13 2 8 Additional items You May Need ih ette ert tete gerit oa 13 Ee mec eee 14 SRI regm 14 Saee L 16 3 21 Local Teucer 16 3 2 2 Local Ae AP o o A 18 323 LOGAN USB o Ao A 19 EE OCA AUX PO i E T ETE E 20 32 OCA POWE E o Eaa IIT LIP RRE 21 3 2 6 Local Remote NetWork LINK coi coo ii aa tics 22 3 2 7 Remote Video Display etie dea ti teenage 24 3 2 8 Remote Micr
18. ate and yet simple to use switching and multicast techniques make possible a great variety of uses There are two main models within the ServSwitch Agility family e ServSwitch Agility supports one single link DVI video stream plus microphone speakers and up to four USB peripherals Agility units are linked using Gigabit Ethernet e ServSwitch Agility Dual supports either two single link DVI video streams or one dual link very high resolution DVI video stream This is in addition to microphone speakers and up to four USB peripherals ServSwitch Agility Dual units can be linked using Gigabit Ethernet or Fiber Optic Links In both model types there is a Local transmitter and an Remote receiver The Local transmitter attaches to a single computer the Remote receiver to your DVI video monitor microphone speakers and up to four USB peripherals The distance between them is limit ed only by the size of your network In addition to separating one computer and its peripherals Agility promotes sharing You can arrange for a limitless number of screens and speakers distributed anywhere across the network to receive video and audio You can also switch between any number of transmitter units from a single screen keyboard and mouse in order to monitor a potentially vast collection of remote systems All units feature browser based configuration utilities to allow quick and easy set up from near or far 2 1 One to One Configuration The simplest conf
19. cable 6 5 feet P N EYN257T XXXX FF e 2 19 rackmount brackets and 4 screws P N RMK2004 or RMK2004 2 VESA mounting bracket and 4 screws P N RMKVESA 724 746 5500 blackbox com Page 13 ServSwitch Agility and Agility Dual 3 Installation 3 1 Mounting There are three main mounting methods e Via the 4 supplied self adhesive rubber feet Via optional rackmount brackets Via the optional VESA mounting bracket 3 1 1 Rack Brackets The optional brackets plus four screws enable the unit to be secured within a standard rack slot See Figure 3 1 Figure 3 1 Rackmount brackets NOTE Both the ServSwitch Agility units and their power supplies generate heat when in operation and will become warm to the touch Do not enclose them or place them in locations where air cannot circulate to cool the equipment Do not operate the equipment in ambient temperatures exceeding 104 F 40 C Do not place the products in contact with equipment whose sur face temperature exceeds 104 F 40 C Page 14 724 746 5500 blackbox com Chapter 3 Installation 3 1 2 Using the VESA Mounting Bracket The optional mounting bracket conforms to the VESA mounting standard and so can be used to mount a ServSwitch Agility unit directly to the rear of most video display units The bracket can also be fixed directly to a wall or other solid surface using appro priate screws or bolts 1 Orientate the bracket against the
20. crophone cables to audio sockets 2 Where a microphone is to be used Connect a second audio link cable between the LINE IN socket on the Local unit rear panel and the LINE IN socket of the host computer 3 2 2 2 To make audio links on ServSwitch Agility Dual 1 Connect an audio link cable between the IN if socket on the Local unit rear panel and the speaker output line out socket of the host computer See Figure 3 7 Speaker link from host computer Microphone link to host computer Figure 3 7 Connect the speaker and microphone cables to audio sockets 2 Where a microphone is to be used Connect a second audio link cable between the our socket on the Local unit rear panel and the Line In socket of the host computer Page 18 724 746 5500 blackbox com Chapter 3 Installation 3 2 3 Local USB Link The ServSwitch Agility and Agility Dual units act as USB 2 0 hubs and so can provide four sockets at the Remote unit with only a single connection at the Local unit 1 Connect the type B connector on a USB cable to the USB port on the Local unit rear panel See Figure 3 8 USB link from host computer Figure 3 8 Connect the USB link cable to Local unit socket 2 Connect the type A connector of the cable to a vacant USB socket on the host computer 724 746 5500 blackbox com Page 19 ServSwitch Agility and Agility Dual 3 2 4 Local AUX Port The AUX port is an RS232 serial port that allows extensi
21. cted directly to each other or via a Gigabit Ethernet network Additionally Agility Dual units can be networked by fiber optic links For direct links over Ethernet cable the length of cable should not exceed 328 feet 100 metres Network cables used for connections may be category 5 5e 6 or 7 twisted pair cable The Local units have an autosensing capability on their network interfaces so for direct point to point connections no crossover Ethernet cable is required For direct links over fiber optic links either multimode or single mode modules can be fitted to ServSwitch Agility Dual units as appropriate to the installation conditions The fiber cable must be a crossover cable 3 2 6 1 To link Agility and Agility Dual units using Gigabit Ethernet 1 Connect a CAT 5 5e 6 or 7 cable to the socket on the front panel of the ServSwitch Agility unit See Figure 3 12 Figure 3 12 CAT 5 5e 6 or 7 link either directly from the other ServSwitch Agility unit or from a Gigabit Ethernet switch 2 Connect the other end of the cable either to the other ServSwitch Agility unit or to a Gigabit Ethernet switch as appropriate 3 For connections via a network repeat steps 1 and 2 for the other ServSwitch Agility unit SS BLACK BOX ServSwitch Agility Dual www blackbex eom AAA BLACK BOX KVMoIP EXTENDER REMOTE NET SER AUD USB DVI PWR C EA LJ Reserved for Use only the right hand port future use for Gigabit Eth
22. e similar puede bloquea la ventilaci n no se debe colocar en libreros o gabinetes que impidan el flujo de aire por los orificios de ventilaci n El equipo el ctrico deber ser situado fuera del alcance de fuentes de calor como radiadores registros de calor estufas u otros aparatos incluyendo amplificadores que producen calor El aparato el ctrico deber ser connectado a una fuente de poder s lo del tipo descrito en el instructivo de operaci n o como se indique en el aparato 12 Precauci n debe ser tomada de tal manera que la tierra fisica y la polarizaci n del equipo no sea eliminada 13 Los cables de la fuente de poder deben ser guiados de tal manera que no sean pisados ni pellizcados por objetos colocados sobre o contra ellos poniendo particular atenci n a los contactos y recept culos donde salen del aparato 14 El equipo el ctrico debe ser limpiado nicamente de acuerdo a las recomendaciones del fabricante 15 En caso de existir una antena externa deber ser localizada lejos de las lineas de energia 16 El cable de corriente deber ser desconectado del cuando el equipo no sea usado por un largo periodo de tiempo 17 Cuidado debe ser tomado de tal manera que objectos liquidos no sean derramados sobre la cubierta u orificios de ventilaci n 18 Servicio por personal calificado deber ser provisto cuando A El cable de poder o el contacto ha sido da ado u B Objectos han ca do o l quido ha sido derramado dentro del
23. ell as speakers providing the necessary connec tions have been made between the ServSwitch Agility local transmitter unit and the host computer 3 2 8 1 To connect a microphone or line in and or speakers on ServSwitch Agility 1 Connect the lead from a mono microphone or alternatively a line in connection from an audio device to the 3 5mm socket labelled LINE IN MIC IN on the rear panel See Figure 3 19 S MUN Ur 20 9 Wee Connection from microphone or line in from audio device Link out to speakers Figure 3 19 Connect the speaker and microphone cables to audio sockets 2 Connect the lead from stereo speakers to the 3 5mm socket labelled LINE OUT on the rear panel 3 Once the unit has been fully connected and powered on access the RX System Configuration page to check that the Audio Input Type setting matches the connection that you have made to the port line mic or mic boost the latter provides 20dB gain 3 2 8 2 To connect a microphone or line in and or speakers on ServSwitch Agility Dual 1 Connect the lead from a mono microphone or alternatively a line in connection from an audio device to the 3 5mm socket labelled on the rear panel See Figure 3 20 Connection from microphone or line in from audio device Link out to speakers Figure 3 20 Connect the speaker and microphone cables to audio sockets 2 Connect the lead from stereo speakers to the 3 5mm socket labelled 1 on the rear p
24. er 2 by the sending system includes the physical address of the intended recipient system e the unique MAC address for example 09 f8 33 d7 66 12 that is assigned to every networking device at manufacture Deciphering recipients at this level is more straightforward than at Layer 3 where the address of the recipient is rep resented by a logical IP address e g 192 168 0 10 and requires greater knowledge of the surrounding network structure Due to their more complex circuitry Layer 3 switches are more expensive than Layer 2 switches of a similar build quality and are used more sparingly within installations 724 746 5500 blackbox com Page 43 ServSwitch Agility and Agility Dual Appendix D Cable and Connector Specifications D 1 RS232 Null Modem Cable 9pin D type 9pin D type female female RD 2 RXD DR 4 DTR DSR DSR DD D DCD GND O 5 GND RTS D RTS cts 8 8 CTS D 2 Supported video modes ServSwitch Agility and Agility Dual units support all VESA and CEA video modes Page 44 724 746 5500 blackbox com Appendices Appendix E Safety Information For use in dry oil free indoor environments only The units and their power supplies generate heat when in operation and will become warm to the touch Do not enclose them or place them locations where air cannot circulate to cool the equipment Do not operate the equipment in ambient tempera tures exceeding 40 degrees Cent
25. ernet links Figure 3 13 Location of Ethernet ports on the ServSwitch Agility Dual Page 22 724 746 5500 blackbox com Chapter 3 Installation 3 2 6 2 To link Agility Dual units using fiber optic links 1 Insert an optional SFP multi mode or single mode fiber module into the aperture on the ServSwitch Agility Dual front panel See Figure 3 14 Y M E Figure 3 14 Insert an appropriate single mode or muilti mode fiber module 2 Connect the transmit and receive fiber links to the fiber module and close the latch over the link connectors to lock them into place See Figure 3 15 Figure 3 15 Connect the transmit and receive fiber links to the module 3 Connect the other end of the fiber links either to the other ServSwitch Agility Dual unit or to a fiber equipped Gigabit Ethernet switch as appropriate Note The fiber links must be crossover cables 724 746 5500 blackbox com Page 23 ServSwitch Agility and Agility Dual 3 2 7 Remote Video Display The ServSwitch Agility units support DVI digital video signals and so use DVI D video connectors throughout e ServSwitch Agility models can support a single high resolution DVI D video display at pixel clocks up to 165MHz equating to an example display mode of 1920 x 1200 at 60Hz refresh e ServSwitch Agility Dual models can simultaneously support up to two high resolution video displays at pixel clocks up to 165MHz or can alternatively support one very
26. igrade Do not place the products in contact with equipment whose surface temperature exceeds 40 degrees Centigrade Warning live parts contained within power adapter No user serviceable parts within power adapter do not dismantle Plug the power adapter into a socket outlet close to the module that it is powering Replace the power adapter with a manufacturer approved type only Do not use the power adapter if the power adapter case becomes damaged cracked or broken or if you suspect that it is not operating properly If you use a power extension cord with a unit make sure the total ampere rating of the devices plugged into the extension cord does not exceed the cord s ampere rating Also make sure that the total ampere rating of all the devices plugged into the wall outlet does not exceed the wall outlet s ampere rating Do not attempt to service the units yourself 724 746 5500 blackbox com Page 45 Black Box Tech Support FREE Live 24 7 Tech support the way it should be Great tech support is just 30 seconds away at 724 746 5500 or blackbox com lt BLACK BOX About Black Box Black Box Network Services is your source for an extensive range of networking and infrastructure products You ll find everything from cabinets and racks and power and surge protection products to media converters and Ethernet switches all supported by free live 24 7 Tech support available in 30 seconds or less O Copyright 201
27. iguration links one remote receiver unit to a single local transmitter unit either by a direct link up to 100m or over much greater distances via a Gigabit Ethernet network Figure 2 1 shows a one to one configuration m cmm o Figure 2 1 One to one configuration 2 2 One to Many Configuration i T N Using multicast techniques an unlimited number of receivers can receive video and audio data ia streams from a single local transmitter unit Figure 2 2 shows a one to many configuration d Ima n Figure 2 2 One to many configuration 724 746 5500 blackbox com Page 7 ServSwitch Agility and Agility Dual 2 3 Mixing ServSwitch Agility and Agility Dual units It is possible to mix ServSwitch Agility and Agility Dual transmitters and receivers on a network with the provision that standard Agility units do not support dual link DVI video signals or fiber optic links 2 4 ServSwitch Agility Dual and ServSwitch iPath Where multiple Agility units are used on a network we have developed the ServSwitch iPath manager to allow comprehensive and secure central control of all transmitters receivers and users When using a ServSwitch iPath manager to configure Agility units it is vital that all Agility units that you wish to locate and con trol are set to their factory default settings Otherwise they will not be located by the iPath manager If necessary perform a fac tory reset on each Agility unit Please
28. iscard faulty packets themselves However on receipt of the marked packet a host will carry out the discard process Fragment free is a hybrid of the above two methods It waits until the first 64 bits have been received before beginning to forward each data packet This way the switch is more likely to locate and discard faulty packets that are fragmented due to collisions with other data packets Adaptive switches automatically choose between the above methods Usually they start out as a cut through switches and change to store and forward or fragment free methods if large number of errors or collisions are detected So which one to choose The Cut through method has the least latency so is usually the best to use with Agility units However if the network components and or cabling generate a lot of errors the Store and forward method should probably be used On higher end store and forward switches latency is rarely an issue Page 42 724 746 5500 blackbox com Appendices C 6 Layer 2 and Layer 3 The OSI model When discussing network switches the terms Layer 2 and Layer 3 are very often used These refer to parts of the Open System Interconnection OSI model a standardised way to categorise the necessary functions of any standard network There are seven layers in the OSI model see Figure G1 and these define the steps needed to get the data created by you imag ine that you are Layer 8 reliably down onto the transmission med
29. ish to receive The Querier device and all snooping Layer 2 switches then update their lists accordingly the lists are also updated when Join Group and Leave Group IGMPv2 messages are received C 1 4 IGMP Fast Leave aka Immediate Leave When a device host no longer wishes to receive a multicast transmission it can issue an IGMP Leave Group message as men tioned above This causes the switch to issue an IGMP Group Specific Query message on the port that the Leave Group was received on to check no other receivers exist on that connection that wish to remain a part of the multicast This process has a cost in terms of switch processor activity and time Where ServSwitch Agility units are connected directly to the switch with no other devices on the same port then enabling IGMP Fast Leave mode means that switches can immediately remove receivers without going through a full checking procedure Where multiple units are regularly joining and leaving multicasts this can speed up performance considerably Page 40 724 746 5500 blackbox com Appendices C 2 Jumbo frames Jumbo packets Since its commercial introduction in 1980 the Ethernet standard has been successfully extended and adapted to keep pace with the ever improving capabilities of computer systems The achievable data rates for instance have risen in ten fold leaps from the original 10Mbit s to a current maximum of 100Gbit s While data speeds have increased massively the s
30. issue is often related to either using dithering on the video output of one or more transmitting computers or using VGA to DVI video converters Dithering is used to improve the perceived quality and color depth of images by diffusing or altering the color of pixels between video frames This practice is commonly used on Apple Mac computers using ATI or Nvidia graphics cards VGA to DVI converters unwittingly produce a similar issue by creating high levels of pixel background noise ServSwitch Agility units attempt to considerably reduce network traffic by transmitting only the pixels that change between successive video frames When dithering is enabled and or VGA to DVI converters are used this can have the effect of changing almost every pixel between each frame thus forcing the ServSwitch Agility transmitter to send the whole of every frame resulting in greatly increased network traffic and what s perceived as sluggish performance Remedies e Linux PCs Check the video settings on the PC If the Dither video box option is enabled disable it e Apple Mac with Nvidia graphics Use the ServSwitch Agility Dual series unit with Magic Eye dither removal feature e Apple Mac with ATI graphics Use the ServSwitch Agility Dual series unit with Magic Eye dither removal feature e Windows PCs Use the ServSwitch Agility Dual series unit with Magic Eye dither removal feature e Replace old VGA adapters on host computers with DVI video cards Proble
31. ium the cable optical fiber radio wave etc that carries the data to another user to complete the picture consider the transmission medium is Layer O In general think of the functions car ried out by the layers at the top as being complex becoming less complex as you go lower down LAYER 6 Application Presentation LAYER 5 Session Transport Network LAYER 3 Data Link Physical Network connection Figure C 1 A representation of the seven layers defined by the OSI Model As your data travel down from you towards the transmission medium the cable they are successively encapsulated at each layer within a new wrapper along with a few instructions ready for transport Once transmission has been made to the intended des tination the reverse occurs Each wrapper is stripped away and the instructions examined until finally only the original data are left So why are Layer 2 and Layer 3 of particular importance when discussing ServSwitch Agility Because the successful transmission of data relies upon fast and reliable passage through network switches and most of these operate at either Layer 2 or Layer 3 The job of any network switch is to receive each incoming network packet strip away only the first few wrappers to discover the intended destination then rewrap the packet and send it in the correct direction In simplified terms the wrapper that is added at Lay
32. lace VGA video cards in older systems with suitable DVI replacements Converters cause ServSwitch Agility local units to massively increase data output e Wherever possible create a private network A 3 1 The recommended layout The layout shown in Figure A 1 below has been found to provide the most efficient network layout for rapid throughput when using IGMP snooping BLACK BOX 2 m Y E T Ld Layer 3 Ld Switch Querier BLACK BOK 5 20GB link BLACK BOX E Ej T O S z r O o Layer2 Switch gt o o 10GB link BLACK BOX e C pt T O S 3 O o Layer2 Switch gt o o Figure A 1 Recommended layout for networking ServSwitch Agility local and remote units where IGMP snooping is used e Use no more than two cascade levels e Ensure high bandwidth between the two L2 switches and very high bandwidth between the top L2 and the L3 Typically 10GB and 20GB respectively for 48 port L2 switches Page 36 724 746 5500 blackbox com Appendices A 4 Configuring the switches and devices The layout is vital but so too is the configuration Enable IGMP Snooping on all L2 switches Ensure that IGMP Fast Leave is enabled on all switches with ServSwitch Agility units connected directly to them Enable the L3 switch as an IGMP Querier Enable Spanning Tree Protocol STP on all switches and importantly also enable portfast only on all switch ports that have ServSwitch Agility units connected
33. m ServSwitch Path cannot locate working ServSwitch Agility units There are a few possible causes e The ServSwitch Agility units must be reset back to their zero config IP addresses for ServSwitch Path discovery If you have a working network of ServSwitch Agility unit s without ServSwitch Path and then add ServSwitch Path to the network the Path manager will not discover the ServSwitch Agility units until they are reset to the zero config IP addresses e This could be caused by Layer 2 Cisco switches that have Spanning Tree Protocol STP enabled but do not also have port fast enabled on the ports to which ServSwitch Agility units are connected Without portfast enabled ServSwitch Agility units will all be assigned the same zero config IP address at reboot and ServSwitch Path will only acquire them one at a time on a random basis You can easily tell whether portfast is enabled on a switch that is running STP When you plug the link cable from a working ServSwitch Agility unit into the switch port check how long it takes for the port indicator to change from orange to green If it takes roughly one second portfast is on if it takes roughly thirty seconds then portfast is disabled Remedies e Ensure that the ServSwitch Agility units and the ServSwitch iPath manager are located within the same subnet ServSwitch iPath cannot cross subnet boundaries e Manually reset the ServSwitch Agility units to their zero config IP addresses
34. n Talk to Black Box You ll be live with one of our technical experts in less than 30 seconds Page 2 724 746 5500 blackbox com FCC and IC RFI Statements Federal Communications Commission and Industry Canada Radio Frequency Interference Statements This equipment generates uses and can radiate radio frequency energy and if not installed and used properly that is in strict accordance with the manufacturer s instructions may cause interference to radio communication It has been tested and found to comply with the limits for a Class A computing device in accordance with the specifications in Subpart B of Part 15 of FCC rules which are designed to provide reasonable protection against such interference when the equipment is operated in a commercial environment Operation of this equipment in a residential area is likely to cause interference in which case the user at his own expense will be required to take whatever measures may be necessary to correct the interference Changes or modifications not expressly approved by the party responsible for compliance could void the user s authority to oper ate the equipment This digital apparatus does not exceed the Class A limits for radio noise emission from digital apparatus set out in the Radio Interference Regulation of Industry Canada Le pr sent appareil num rique n met pas de bruits radio lectriques d passant les limites applicables aux appareils num riques de la classe A p
35. n the unit is in error SER On when the AUX serial port is enabled and active AUD On when audio is enabled and active USB On when USB is enabled and active DVI On when DVI video is enabled PWR Power indicator Figure 2 9 ServSwitch Agility Dual remote receiver unit front panel Figure 2 10 shows the connectors located on the rear panel of the remote receiver unit ss USE ONLY DVI D 2 8 DVI D i 8 AUX Gooaooooo cooooooo ooo00000 O oo000000 O O O Eu E a D USER CONSOLE Secondary Primary Audio AUX input ports video video line serial output output in out port Configuration switches Figure 2 10 ServSwitch Agility Dual remote receiver unit rear panel Page 12 724 746 5500 blackbox com 2 7 What s Included Chapter 2 Overview Your package should include the following items If anything is missing or damaged contact Black Box at 724 746 5500 or info blackbox com 2 7 1 ServSwitch Agility Local Unit Package ACR1000A T e ServSwitch Agility local transmitter unit e Power adapter and power cord e 4 Self adhesive feet e CD ROM containing this user manual in PDF format Combined DVI D and USB cable 6 feet e 2 audio cables with 3 5mm stereo jacks 6 5 feet Upgrade serial null modem cable 6 5 feet 2 7 4 ServSwitch Agility Dual Local Unit Package ACR1002A T ServSwitch Agility Dual local transmitter u
36. nding video output socket of the host computer 3 2 1 3 To make two video links on ServSwitch Agility Dual Use two single link DVI D cables to connect the primary and secondary DVI video ports of the computer to allow two video displays to be used at the remote unit 1 Wherever possible ensure that power is disconnected from the ServSwitch Agility Dual and the host computer 2 Connect standard DVI link cables to the DVI D 1 and DVI D 2 sockets on the Local unit rear panel See Figure 3 5 From primary video output port From secondary video output port Figure 3 5 Connect standard DVI D link cables to the DVI D 1 and DVI D 2 sockets 3 At the other end of the link cables connect the cable from socket DVI D 1 to the computer s primary video port and the cable from socket DVI D 2 to the computer s secondary video port 724 746 5500 blackbox com Page 17 ServSwitch Agility and Agility Dual 3 2 2 Local Audio Links The ServSwitch Agility and Agility Dual units support two way stereo digital sound so that you can use a microphone as well as speakers 3 2 2 1 To make audio links on ServSwitch Agility 1 Connect an audio link cable between the LINE OUT socket on the Local unit rear panel and the speaker output line out socket of the host computer See Figure 3 6 Une ww Su s Q ws Speaker line out link wor from host computer Microphone line in link from host computer Figure 3 6 Connect the speaker and mi
37. nit Power adapter and power cord 4 Self adhesive feet e CD ROM containing this user manual in PDF format e Combined DVI D and USB cable 6 feet e 2 audio cables with 3 5mm stereo jacks 6 5 feet Upgrade serial null modem cable 6 5 feet 2 8 Additional Items You May Need 2 7 2 ServSwitch Agility Remote Unit Package ACR1000A R ServSwitch Agility remote receiver unit Power adapter and power cord e 4 Self adhesive feet e CD ROM containing this user manual in PDF format 2 7 3 ServSwitch Agility Pair Package ACR1000A All contents of ServSwitch Agility local unit package e All contents of ServSwitch Agility remote unit package 2 7 5 ServSwitch Agility Dual Remote Unit Package ACR1002A R e ServSwitch Agility Dual remote receiver unit Power adapter and power cord e 4 Self adhesive feet e CD ROM containing this user manual in PDF format 2 7 6 ServSwitch Agility Dual Pair Package ACR1002A All contents of ServSwitch Agility Dual local unit package e All contents of ServSwitch Agility Dual remote unit package e Power adapter P N PS649 R3 12 5W for Agility or PS650 20W for Agility Dual Combined DVI D and USB cable type A to B P N EHN900024U e Single link DVI D to DVI D video cable P N EVNDVIO2 e USB cable type A to B 6 5 feet P N USBO5 e 3 5mm Audio cable 6 5 feet P N EJ110 e Suitable fiber modules for Agility Dual units Upgrade serial null modem
38. on of RS232 signals up to a baud rate of 115200 The port has software flow control but no hardware flow control 1 Ensure that power is removed from the ServSwitch Agility unit 2 Connect a suitable serial null modem cable see Appendix D for pin out between a vacant serial port on your computer and the AUX port on the right hand side of the ServSwitch Agility rear panel See Figure 3 9 Serial null modem link from the host computer Figure 3 9 Connecting the serial link cable to Local unit socket Page 20 724 746 5500 blackbox com Chapter 3 Installation 3 2 5 Local Power In Each ServSwitch Agility unit is supplied with an appropriate power supply Note Agility Dual units are supplied with a slightly higher capacity supply please see section 3 2 5 1 below 1 Attach the output lead from the supplied power adapter to the 5v socket on the rear panel of the unit See Figure 3 10 Note Ensure that Option switches 1 and 2 are both in the off up position to enable normal operation of the unit Power lead from power supply Figure 3 10 Connect the power supply to the rear panel power socket 2 Connect the IEC connector of the supplied country specific power lead to the socket of the power adapter 3 Connect the power cord to a nearby power supply socket When all other connections have been made switch on the power supply unit Note Both the unit and ts power supply generate hea
39. ophone amp Speakers nennen ener enne enne 26 3 2 9 USB Devices serrana nd iere e eie tees quede eese de tee estet Le iet Acedia ee 27 3 2 10 Remote AUX Policias A 28 32 O er lO Y leet OE E EE 29 A A AEE TAER 30 41 tac IU todita 30 4 1 2 Networked linking ccccecceceeceeceecceseeseeaeceeceeeccecesaecaecaesaesececeecaesaesaecaesecesaecaesaesaeseeseaesaecaesaesaeseeseetsaesaesarseesertes 30 41 3 Manual Factory ROSA dado diia 30 41 4 Browser Based Configuration Wty oc isaac opi 31 4 1 5 Performing Upgrade oec sre Dre ect nena ed Canta e ial nga eerie eee cat pee 32 sme eee 33 51 Front Panel A Un fa rante erbe pd ete te ue Aran debent 33 6 Further Information aod ure ce inside Eheu e nidad Locas depu ta non GPL ideada 34 Appendix A Tips for success when networking Agility units ssssssssssseeneeeeneneneneeeennene enne 35 Appendix B TOU DIGSMOOUMG te casita E pu E r petu Mende mM GI Ap duRE dure 38 APPENdX C AGIOS ANY oo oido isis 40 Appendix D Cable and Connector Specifications nennen nnne 44 Appendix E Safety IntortmatiOr ceteri c er ett stet recess roads ista 45 724 746 5500 blackbox com Page 5 ServSwitch Agility and Agility Dual 1 Specifications ServSwitch Agility Casing w x h x d Construction Weight Mount kits Input Power Output Power Operating Temperature Approvals 198mm 7 92 x 44mm 1 76 x 120mm 4 8 1
40. page click the Choose File button In the subsequent file dia log locate the downloaded upgrade file check that the file is correct for the unit being upgraded 5 Click the Upgrade Now button A progress bar will be displayed however if your screen is connected to the unit being upgraded then video may be interrupted and the indicators on the front panel will flash while the upgrade is in progress 6 The indicators should stop flashing in less than one minute after which the unit will automatically reboot itself The upgrade process is complete Page 32 724 746 5500 blackbox com Chapter 5 Operation 5 Operation In operation many ServSwitch Agility and Agility Dual installations require no intervention once configured The local transmitter and remote receiver units take care of all connection control behind the scenes so that you can continue to work unhindered 5 1 Front Panel Indicators The six front panel indicators on each unit provide a useful guide to operation See Figure 5 1 NET SER AUD USB DVI PWR These six indicators clearly show the key aspects of operation e NET On when valid network link is present Flashes when the unit is in error e SER On when the AUX serial port is enabled and active e AUD On when audio is enabled and active USB On when USB is enabled and active DVI On when either or both DVI video channels are enabled PWR Power indicator Figure 5 1 Front panel indicators 72
41. rear of the video display so that its small folded in tabs are lowermost See Figure 3 2 VESA mounting bracket Rear panel of video display ServSwitch Agility unit Figure 3 2 VESA mounting bracket 2 Attach the bracket to the video display using four screws of a size appropriate to the threaded holes within the video display panel do not overtighten 3 Place the ServSwitch Agility unit into the bracket with its base facing towards the video display and the front panel of the ServSwitch Agility unit facing upwards 4 Secure the ServSwitch Agility unit to the bracket using the four supplied screws do not overtighten 724 746 5500 blackbox com Page 15 ServSwitch Agility and Agility Dual 3 2 Connections Installation involves linking the ServSwitch Agility local transmitter unit to various ports on the host computer while the ServSwitch Agility remote receiver unit is attached to your peripherals 3 2 1 Local Video Link The ServSwitch Agility and Agility Dual units support DVI digital video signals and so use DVI D video connectors throughout e ServSwitch Agility models can support a single high resolution DVI D video display at pixel clocks up to 165MHz equating to an example display mode of 1920 x 1200 at 60Hz refresh e ServSwitch Agility Dual models can simultaneously support up to two Single Link high resolution video displays at pixel clocks up to 165MHz or can alternatively support a single
42. rescrites dans le R glement sur le brouillage radio lectrique publi par Industrie Canada 724 746 5500 blackbox com Page 3 ServSwitch Agility and Agility Dual In strucciones de Seguridad Normas Oficiales Mexicanas Electrical Safety Statement 1 2 3 4 5 oN Oo so 10 11 Todas las instrucciones de seguridad y operaci n deber n ser le das antes de que el aparato el ctrico sea operado Las instrucciones de seguridad y operaci n deber n ser guardadas para referencia futura Todas las advertencias en el aparato el ctrico y en sus instrucciones de operaci n deben ser respetadas Todas las instrucciones de operaci n y uso deben ser seguidas El aparato el ctrico no deber ser usado cerca del agua por ejemplo cerca de la tina de ba o lavabo s tano mojado o cerca de una alberca etc El aparato el ctrico debe ser usado nicamente con carritos o pedestales que sean recomendados por el fabricante El aparato el ctrico debe ser montado a la pared o al techo s lo como sea recomendado por el fabricante Servicio El usuario no debe intentar dar servicio al equipo el ctrico m s all a lo descrito en las instrucciones de operaci n Todo otro servicio deber ser referido a personal de servicio calificado El aparato el ctrico debe ser situado de tal manera que su posici n no interfiera su uso La colocaci n del aparato el ctrico sobre una cama sof alfombra o superfici
43. rmissible to the transmitter e Frame Skipping This involves missing out video frames between those captured by the transmitter For video sources that update only infrequently or for those that update very frequently but where high fidelity is not required frame skipping is a good strategy for reducing the overall bandwidth consumed by the system C 5 Forwarding modes In essence the job of a layer 2 switch is to transfer as fast as possible data packets arriving at one port out to another port as determined by the destination address This is known as data forwarding and most switches offer a choice of methods to achieve this Choosing the most appropriate forwarding method can often have a sizeable impact on the overall speed of switching Store and forward is the original method and requires the switch to save each entire data packet to buffer memory run an error check and then forward if no error is found or otherwise discard it e Cut through was developed to address the latency issues suffered by some store and forward switches The switch begins interpreting each data packet as it arrives Once the initial addressing information has been read the switch immediately begins forwarding the data packet while the remainder is still arriving Once all of the packet has been received an error check is per formed and if necessary the packet is tagged as being in error This checking on the fly means that cut through switches cannot d
44. rom a single application IMPORTANT When using the ServSwitch iPath manager to configure Agility units it is vital that all Agility units that you wish to locate and control are set to their factory default settings Otherwise they will not be located by the ServSwitch iPath man ager If necessary perform a factory reset on each Agility unit 4 1 3 Manual Factory Reset A factory reset returns a ServSwitch Agility local transmitter or remote receiver unit to its default configuration You can perform factory resets using the browser based configuration utility or by using this direct manual method 4 1 3 1 To perform a manual factory reset 1 Remove power from the ServSwitch Agility unit 2 Use a narrow implement e g a straightened out paper clip press and hold the reset button adjacent to the front panel net work socket Power on the unit and then release the reset switch See Figure 4 1 ServSwitch Agility Figure 4 1 Use a straightened out paper clip to press the reset button while powering on the unit After roughly eight seconds when the factory reset has completed five of the front panel indicators will flash for a period of three seconds to indicate a successful reset operation Page 30 724 746 5500 blackbox com Chapter 4 Configuration 4 1 4 Browser Based Configuration Utility The browser based configuration utility within all local transmitter and remote receiver units requires a network connection between
45. t when in operation and will become warm to the touch Do not enclose them or place them in locations where air cannot circulate to cool the equipment Do not operate the equipment in ambient tem peratures exceeding 40 C Do not place the products in contact with equipment whose surface temperature exceeds 40 C 3 2 5 1 Power supply identification Due to the increased power requirements of the ServSwitch Agility Dual units these models are supplied with larger capacity 20W power adapters The standard 12 5W and higher power 20W adapters use identical housings so within installations where both types are used you need to double check the underside labels to differentiate the two types 12 5W model 20W model for Agility for Agility Dual No damage will be caused if the 12 5W adapter p n PS649 R3 and the 20W adapter p n PS650 are used in place of each other on either of the Agility or Agility Dual units However correct operation of Agility Dual units can only be guaranteed if a 20W power adapter is used Always ensure that only the supplied or authorized replacement 5 volt power supplies are used to power the units 2 5A 12 5W Max 4A 20W Max Figure 3 11 How to differentiate the power supplies for the ServSwitch Agility and Agility Dual 724 746 5500 blackbox com Page 21 ServSwitch Agility and Agility Dual 3 2 6 Local Remote Network Link ServSwitch Agility and Agility Dual units can be either conne
46. tandard defining the number of bytes known as the Payload placed into each data packet has remained resolutely stuck at its original level of 1500 bytes This standard was set during the original speed era 10Mbits s and offered the best compromise at that speed between the time taken to process each packet and the time required to resend faulty packets due to transmission errors But now networks are much faster and files data streams are much larger so time for a change Unfortunately a wholesale change to the packet size is not straightforward as it is a fundamental standard and changing it would mean a loss of backward compatibility with older systems Larger payload options have been around for a while however they have often been vendor specific and at present they remain outside the official standard There is however increased consensus on an optional Jumbo payload size of 9000 bytes and this is fully supported by the ServSwitch Agility units Jumbo frames or Jumbo packets offer advantages for ServSwitch Agility units when transmitting certain high resolution video signals across a network This is because the increased data in each packet reduces the number of packets that need to be trans ferred and dealt with thus reducing latency times The main problem is that for jumbo frames to be possible on a network all of the devices on the network must support them C 3 Spanning Tree Protocol STP In order to build a robust ne
47. the capabilities of the previous one e GMPv1 allows host computers to opt into a multicast transmission using a Join Group message it is then incumbent on the router to discover when they no longer wish to receive this is achieved by polling them see IGMP Querier below until they no longer respond e IGMPv2 includes the means for hosts to opt out as well as in using a Leave Group message e IGMPv3 encompasses the abilities of versions 1 and 2 but also adds the ability for hosts to specify particular sources of multi cast data ServSwitch Agility units make use of IGMPv2 when performing multicasts to ensure that no unnecessary congestion is caused C 1 2 IGMP Snooping The IGMP messages are effective but only operate at layer 2 intended for routers to determine whether multicast data should enter a subnet A relatively recent development has taken place within the switches that glue together all of the hosts within each subnet IGMP Snooping IGMP snooping means these layer 2 devices now have the ability to take a peek at the IGMP messages As a result the switches can then determine exactly which of their own hosts have requested to receive a multicast and only pass on multicast data to those hosts C 1 3 IGMP Querier When IGMP is used each subnet requires one Layer 3 switch to act as a Querier In this lead role the switch periodically sends out IGMP Query messages and in response all hosts report which multicast streams they w
48. the subnet e Where each ServSwitch Agility unit is connected as the sole device on a port connection to a switch enable IGMP Fast Leave aka Immediate Leave to reduce unnecessary processing on each switch e Check the video resolution s being fed into the ServSwitch Agility transmitters If resolutions using 2048 horizontal pixels are unavoidable then ensure that Jumbo frames are enabled on all switches e Check the forwarding mode on the switches If Store and forward is being used try selecting Cut through as this mode causes reduced latency on lesser switch designs e Ensure that one device within the subnet is correctly configured as an IGMP Querier usually a layer 3 switch or multicast rout er e Ensure that the firmware in every ServSwitch Agility unit is version 2 1 or greater e Try adjusting the transmitter settings on each ServSwitch Agility to make the output data stream as efficient as possible See Agility transmitter video settings for details Problem The audio output of the ServSwitch Agility receiver sounds like a scratched record This issue is called Audio crackle and is a symptom of the same problem that produces blinding see previous page The issue is related to missing data packets Remedies As per blinding discussed above Page 38 724 746 5500 blackbox com Appendices Problem The mouse pointer of the ServSwitch Agility receiver is slow or sluggish when moved across the screen This
49. tion e sochronous devices including microphones speakers webcams and TV receivers are not currently supported e Many other devices such as printers scanners serial adapters and specialist USB devices will work but due to the huge variety of devices available successful operation cannot be guaranteed 724 746 5500 blackbox com Page 27 ServSwitch Agility and Agility Dual 3 2 10 Remote AUX Port The AUX port is an RS232 serial port that allows extension of RS232 signals up to a baud rate of 115200 The port has soft ware flow control but no hardware flow control 1 Ensure that power is removed from the ServSwitch Agility unit 2 Connect a suitable serial null modem cable see Appendix D for pin out between the AUX port on the right hand side of the ServSwitch Agility rear panel and your remote serial device See Figure 3 22 Serial null modem link from your computer Figure 3 22 Connecting the serial link cable to local transmitter unit socket Page 28 724 746 5500 blackbox com Chapter 3 Installation 3 2 11 Local Power In Each ServSwitch Agility unit is supplied with an appropriate power supply Note Agility Dual units are supplied with a slightly higher capacity supply please see section 3 2 11 1 below 1 Attach the output lead from the supplied power adapter to the 5v socket on the rear panel of the unit See Figure 3 23 Note Ensure that Option switches 1 and 2 are both in
50. transmitted as separate data packets If the reception of those packets is disturbed then blinding is caused The lines are displayed in place of the missing video data packets There are several possible causes for the loss of data packets e Incorrect switch configuration The problem could be caused by multicast flooding which causes unnecessary network traffic This is what IGMP snooping is designed to combat however there can be numerous causes of the flooding e Speed memory bandwidth issues within one or more switches The speed and capabilities of different switch models varies greatly If a switch cannot maintain pace with the quantity of data being sent through it then it will inevitably start dropping packets e One or more ServSwitch Agility units may be outputting Jumbo frames due to the video resolution 2048 horizontal pixels being used If jumbo frames are output by a ServSwitch Agility unit but the network switches have not been configured to use jumbo frames the switches will attempt to break the large packets down into standard packets This process introduces a cer tain latency and could be a cause for dropped packets One or more ServSwitch Agility units may be using an old firmware version Firmware versions prior to v2 1 exhibited an issue with the timing of IGMP join and leave commands that caused multicast flooding in certain configurations Remedies e Ensure that IGMP snooping is enabled on all switches within
51. twork it is necessary to include certain levels of redundancy within the interconnections between switches This will help to ensure that a failure of one link does not lead to a complete failure of the whole network The danger of multiple links is that data packets especially multicast packets become involved in continual loops as neighbouring switches use the duplicated links to send and resend them to each other To prevent such bridging loops from occurring the Spanning Tree Protocol STP operating at layer 2 is used within each switch STP encourages all switches to communicate and learn about each other It prevents bridging loops by blocking newly discovered links until it can discover the nature of the link is it a new host or a new switch The problem with this is that the discovery process can take up to 50 seconds before the block is lifted causing problematic time outs The answer to this issue is to enable the portfast variable for all host links on a switch This will cause any new connection to go immediately into forwarding mode However take particular care not to enable portfast on any switch to switch connections as this will result in bridging loops 724 746 5500 blackbox com Page 41 ServSwitch Agility and Agility Dual C 4 Agility transmitter video settings Each ServSwitch Agility transmitter includes controls to help you customise how video data is transmitted When configured cor rectly for the application
52. ult settings are as follows e Local units IP address 169 254 1 33 Netmask 255 255 0 0 e Remote units IP address 169 254 1 32 Netmask 255 255 0 0 Where the address of a unit is not known perform a manual factory reset see section 4 1 3 to restore the default address The opening page of the ServSwitch Agility configuration utility should be displayed and you can now use on screen help for details of the functions that you wish to perform 724 746 5500 blackbox com Page 31 ServSwitch Agility and Agility Dual 4 1 5 Performing an upgrade ServSwitch Agility and Agility Dual units are flash upgradeable using the method outlined here However for larger installations we recommend that you use the ServSwitch iPath manager to upgrade multiple Agility units When using the method below the Agility unit will be upgraded in sequence Warning During the upgrade process ensure that power is not interrupted as this may leave the unit in an inoperable state 4 1 5 1 To upgrade a single unit via network link 1 Download the latest upgrade file Please contact Black Box technical support for details Note There are separate upgrade files for TX and RX units 2 Temporarily connect the ServSwitch Agility unit and a computer via a network see section 4 1 4 for details 3 Run a web browser on your computer and enter the IP address of the ServSwitch Agility unit to be upgraded 4 Click the Firmware Upgrade link Within the Firmware Upgrade
53. witch Agility remote receiver unit The smart front faces feature the operation indicators as shown in Figure 2 5 ServSwitch Agility NET SER AUD USB DVI PWR Indicators These six indicators clearly show the key aspects of operation Gigabit Ethernet e NET On when valid network link is present port Flashes when the unit is in error SER On when the AUX serial port is enabled and active AUD On when audio is enabled and active USB On when USB is enabled and active DVI On when DVI video is enabled and active PWR Power indicator Figure 2 5 ServSwitch Agility remote receiver unit front panel Figure 2 6 shows the connectors located on the rear panel of the remote receiver unit Cc UNDOOR enone pvp a LINE IN LINE OUT E MIC IN AUX QH o e O Jano 1 eco SV 2 5A Power Video USB Audio AUX input output ports line serial in out port Configuration switches Figure 2 6 ServSwitch Agility remote receiver unit rear panel Page 10 724 746 5500 blackbox com Chapter 2 Overview 2 6 ServSwitch Agility Dual unit features The ServSwitch Agility Dual units are housed within durable metallic enclosures with most connectors situated at the rear panel the Ethernet and fiber are situated on the front panels 2 6 1 ServSwitch Agility Dual local transmitter unit The smart front faces feature the operation indicators as shown in Figure 2 7 F

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