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Polycom DOC2237A User's Manual

1. H323 ISDN ATM Network Network Network A CSU FABX Workstations LAN Workstations Alarms 120 230 V AA A AMM M n MGC 100 vo 1 0 O RS232 Ethernet RS232 AC Inlet r r ri M A Card Card Card tt 4 IMI na Floppy Disk Main LAN Serial Comm Main Hard Disk CPU Interface Interface Controller Control Module Serial equipment A Functional Modules ISON H323 ATM MUX Audio Video aa letwork Network Network Interface Interface Interface Module Module Module Module Fan MEL Module K Box Power Power Power Module Module Module Power Supply unk Figure 3 5 MGC 100 functional block diagram 3 5 Chapter 3 System Architecture Figure 3 6 shows the physical layout of the MGC 50 and how it interfaces with the outside world H323 ISDN ATM Network Network Network coza PABX Workstations LAN Workstations Alarms 120 230 V n T ma A MAMA M 4 MGC 100 o vO vO RS232 Ethernet RS232 AC Inlet M MM Card Card Card mM et We Floppy Disk Main LAN Serial Comm Hard Disk KH CPU Interface Interface Controller Main Cont
2. o_o o_o r o_o Lo E o 7 THA Jo Jo Co ro E Jo i C Jon Jo Ho Wes Jo Jo C ref Joro as ooo Jo Jono Jo o oo Figure 4 22 MPI box rear panel 4 41 Chapter 4 Hardware Description 4 42 MPI 8 Network Interface Data Stream When the MCU is set as a DTE The ISDN data stream flows from the ISDN telecommunication network through the DCE to the serial port 37 pin connector on the MPI box The data is then directed from the 37 PIN connector to the 160 PIN connector which gathers data from four different ports and channels the data stream to the 160 pin connector located on the MPI 8 front panel The data is then converted from serial format to TDM format and flown to the Backplane information bus The master and the Backup clock must be set on spans of the same network type Since this is full duplex communication the data is also flowing in the opposite direction Figure 4 22 shows the data flow on an ISDN data stream MPI Box DCE Serial 37 PIN M connection H connector 160 PIN connector To the 160 PIN connector er E on the MPI 8 module F T 1 ee 37 PIN connector _________________ 37 PIN connecto T1 ISDN line 23 channels 37 PIN connector Serial connection
3. 5 Connect the serial cable running from the DCE to the appropriate 37 pin connector on the rear panel of the MPI Box If the endpoint is a DCE then connect this to the MPI Box For more information refer to chapter 4 If dialing is used connect the appropriate cable from the DCE to the 25 pin connector on the rear panel of the MPI Box the kit to the 37 pin prior to connecting the serial cable from the DCE The serial MPI network properties must be defined in the Network Services for details see MGC Administrator s Guide Chapter 3 3 e If the V 35 or RS 530 cable is used attach the special adapter provided with 2 34 MGC Hardware and Installation Manual First Entry IP Configuration This following section describes the first entry IP Configuration for pSOSystem and XPEK Operating Systems IP Configuration Change on XPEK and pSOS OS 1 Connect a Hub or cross over LAN cable between the laptop s LAN connection and the LAN connection of the Control Unit On the laptop click Control Panel gt Network Connection gt Local Area Connection In the Local Area Connection General dialog box click the Properties button In the Local Area Connection Properties dialog box and click Use the following IP address Type the IP address 129 254 4 7 of the laptop as part of the network segment on the MCU
4. Card Manager HDLC Interface Figure 4 29 Audio Module 4 55 Chapter 4 Hardware Description Audio Module 4 56 The Audio Module performs audio compression decompression and bridging The Audio Module also performs transcoding between various audio algorithms The Audio Module supports the following algorithms e ITU T G711 48 56 and 64 Kbps e ITU T G722 48 56 and 64 Kbps e ITU T G728 16 Kbps e ITU T G722 1 e ITU T G723 1 e ITU T G729 Siren7 e Sirenl4 The Audio module enables the usage of the Interactive Voice Response IVR software component Interactive Voice Response IVR for video enables video and VOIP conference participants to use the IVR services for interactive routing to conferences and to perform interactive operations from their endpoint using DTMF codes It stores the voice messages used with IVR Services The Audio card also enables increased port capacity in Audio Only conferences Conferences can include participant handled by one card type either standard audio or the Audio family MGC Hardware and Installation Manual Audio Module Architecture Audio represents a new family of audio cards Audio has the same general card architecture as the audio card but with a different number of processors This has an impact on the number of ports supported by each card 32 Mbit s m Link Message module
5. v VO Figure 4 27 MUX 40 Module Card Architecture Three types of MUX cards are available e MUX 10 with one processor e MUX 20 with two processors e MUX 40 with four processors 4 47 Chapter 4 Hardware Description 4 48 The MUX card can be installed together with a MUX card in the same MCU A conference can run on multiple MUX cards and on both MUX and MUX cards simultaneously with non encrypted participants The MUX handles a variety of Line Rates aggregation calls 1B to 6B and Bonding calls 128 Kbps to El MUX Card Properties A flexible port resource allocation mechanism is available with the MUX card and allocates ports dynamically thereby decreasing fragmentation It enables the MCU to allocate and free resources according to the conference requirements without pre configuring the Line Rate on each card unit E A Common Parameters MUX Plus Parameters Common Parameters MUX Plus Parameters N m MUX Parameters Slot Number E Card Type MUb 40 v Hardware Version 4 42 0 Software Version 0 00 714 CPU Software Version MEA Serial Number 54295 XILINX Software Version 0 00 24 Status Recieve Delay 0 Byte areca Transmit Delay 0 Byte OK Cancel Apply OK Cancel Apply Figure 4 28 MUX Card Participant Properties When version 7 0 software is installed on the MCU during system re start the MUX is recognized as a new type of card a
6. Audio Controller Unit DSP Memory Memory Card Manager Memory Figure 4 30 Audio Module Audio Port Capacities The system s working mode affects its system capacity Medium Band without Siren14 and Wide Band with Siren14 The Medium and Wide Band settings are defined in the system cfg file For Medium Band the flag is set to AUDIO_PLUS_FREQUENCYBAND_MODE MB For Wide Band the flag is set to AUDIO_PLUS_FREQUENCYBAND_MODE WB 4 57 Chapter 4 Hardware Description The following table details the card capacities according to the Audio algorithm used in the conference when the MCU is configured to Medium Band Table 4 3 Audio card capacity per Audio algorithm Medium Band setting Audio Algorithm Card Type G711 Q722 7221 728 723 1 729 COSCE auto a a COEM meas a a Audio 48 96 Table 4 4 Audio card capacity per Audio algorithm Wide Band setting Not supported in Medium Band mode The following table details the card capacities according to the Audio algorithm used in the conference when the MCU is configured to Wide Band Audio Algorithm Card Type G711 G722 G7221 G728 G723 1 Q729 naos e fe e fe fe M e fe COS e e e CS e e e 4 58 MGC Hardware and Installation Manual Video Module Standard The Video Module performs video processing and
7. Figure 4 23 MPI Data Flow when MCU is DTE G MCU DCE MGC Hardware and Installation Manual When the MCU is set as a DCE The serial data stream flows from the endpoint DTE through the serial connector entering the MPI box by way of the 37 pin connector The data is then directed from the 37 pin connector to the 160 pin connector connected to the MCU DCE In the MCU the data stream is converted to a TDM format and then sent to the backplane information bus Since this is a full duplex communication the data is also bi directional The network clock is enabled only when the span coming from the DCE to the MCU is active i e handles a call Therefore the spans defined as Primary and Backup clock must be connected first when starting a conference and disconnected last when terminating the conference Figure 4 24 MPI Data Flow when MCU is DCE shows the data flow on a serial connection the endpoints are connected directly to the MPI Box MPI Box 37 Pin Connector Serial Endpoint DTE Connection gt 37 Pin Connector he 160 Pin Cable Z Serial LA Connection Endpoint DTE 37 Pin TC C t onnector Sai Connection y 37 Pi E Pin Connector i Endpoint DTE Serial pelle Connection Endpoint DTE Figure 4 24 MPI Data Flow when MCU is DCE 4 43 Chapter 4 Hardware Description MUX Module 4 44 3 MPI Network Interface Module
8. Click OK Run the MGC Manager application Define a new MCU a Inthe Browser pane right click the MCUs Network icon and then click New MCU 2 35 Chapter 2 Hardware Installation The Add MCU dialog box opens x Name fo ci IP Address i 1 Product name MCU Ver MCMS Ver Corcel Advanced gt gt b In the Name box enter the name of the MCU Specify a name that clearly identifies the MCU c Inthe JP Address box enter the factory setting IP Address 129 254 4 8 d Click OK The new MCU is added to the MCUs list 9 Inthe MCUs list double click the MCU icon to connect to it 2 36 MGC Hardware and Installation Manual 10 Modify the IP address of the MCU unit as allocated by the network administrator This is the IP address with which the MCU is identified on the LAN site a Right click the MCU icon and then click IP Configuration Aloha 06 Normal Disconnect IP Configuration New Reservation Resource Report Dongle Information CDR MCU Time Faults MCU Utils Retrieve Diagnostic Files Fast Configuration Wizard Play Batch Telnet IP Terminal SNMP Stop Current Indication Repeating Remove MCU Reset MCU Properties The IP Configuration dialog box opens x IP Address fh 72 22 140 159 Subnet Mask 255 255 248 0 Default Gateway fi 72 22 136 1 tows _ ET b
9. 4 23 Chapter 4 Hardware Description Table 4 4 MGC Functional Modules Description Functional Module Function Port capacity MG323 Audio video and data e 12 channels at 128 communications across 256 and 384Kbps IP based LAN networks including the Internet IP24 Enables Audio video and 48 channels at data communications across 128Kbps IP based LAN networks including the Internet IP48 Enables Audio video and 96 channels at data communications across 128Kbps IP based LAN networks including the Internet IP 12 Perform signaling and 32 channels at capabilities exchange for 128Kbps conferencing Encrypted conferences with IP participants SIP sessions and mixed component conferences that include SIP participants require IP cards IP 24 Perform signaling and 48 channels at capabilities exchange for 128Kbps conferencing Encrypted conferences with IP participants SIP sessions and mixed component conferences that include SIP participants require IP cards Perform signaling and 96 channels at capabilities exchange for 128Kbps conferencing Encrypted conferences with IP participants SIP sessions and mixed component conferences that include SIP participants require IP cards 4 24 MGC Hardware and Installation Manual Table 4 4 MGC Functional Modules Description Functional Module Function Port capacity MPI 4 Uses dialing protocols to 120 channels 92 communicate to endpoints channels using
10. 1 Exit the MGC Manager application as described in the MGC Manager User s Guide Switch off the main power switch on the rear panel and disconnect the power cord from the power source Open the cover of the Main Control Module on the rear panel of the MGC Disconnect all internal cables to the Main Control Module Unscrew the four screws on the front panel of the MGC that secure the Main Control Module Use the plastic ejectors to pull the Main Control Module out of its slot in the Backplane Carefully slide the Main Control Module out through the front panel Slide in the replacement Main Control Module Push the Main Control Module firmly into the Backplane making sure it is properly seated in its slot 5 17 Chapter 5 System Maintenance 5 18 10 11 12 13 14 Tighten the four screws on the front panel of the MGC that secure the Main Control Module Reconnect all internal cables to the Main Control Module Close the cover of the Main Control Module on the rear panel of the MGC Connect the power cord to the power source and switch ON the main power switch on the rear panel Connect to the MCU via the MGC Manager as described in the MGC User s Guide MGC Hardware and Installation Manual Troubleshooting The MGC unit provides on line diagnostics for quick isolation and resolution of problems The card status and the MCU s status can be viewed in the Browser and the Status areas of
11. AC Voltage 10Amp at 100 VAC 5 Amp at 240 VAC protected by a 12 5 Amp fuse Note Older MCU units may have different power ratings Contact your next level of support MGC Hardware and Installation Manual 100 240 VAC 50 60 Hz MGC 100 AC Voltage 8 5 Amp at 100 VAC and 4 2 Amp at 240 VAC protected by a 15 Amp circuit breaker DC Voltage 30 Amp at 48 VDC protected by a 50 Amp circuit breaker Note Older MCU units may have different power ratings Contact your next level of support 1 7 Chapter 1 Before You Begin Scope of Manual 1 8 This manual describes the MGC 50 and the MGC 100 hardware and installation procedure It is intended for service engineers system administrators and system operators who need to install configure and maintain the MGC unit Detailed information on using the system including starting and shutting down the system is provided in the MGC Manager User s Guide This manual assumes the user has the following knowledge e Familiarity with the Windows 95 Windows 98 Windows 2000 Windows NT and Windows XP environment and interface e Basic knowledge of videoconferencing concepts and terminology The MGC Hardware and Installation Manual includes the following topics e Chapter 1 Before You Begin Provides a general description of the MGC unit its main features and description of the MGC Hardware and Installation Guide e Chapter 2 MGC Unit Hardware
12. H 264 1 4 MGC Hardware and Installation Manual Table 1 1 MGC Specifications Channel aggregation H 221 BONDING Multi Rate HO Network interfaces ISDN T1 PRI E1 PRI Multirate ISDN NFAS Leased lines T1 E1 Switched 56 T1 CAS T1 CAS lines for Audio Only connections ATM 25 FVC COM 155 FVC COM IP H 323 and SIP LAN Serial V 35 RS449 RS530 A External MGC 50 MGC 100 Communications Network interfaces ISDN T1 E1 ATM 25 First Virtual ATM 155 First Virtual T1 CAS LAN serial MPI MGC Manager control An independent LAN connection separate from the connection Network connection Clock synchronization Synchronizes to external network PecsiReniole External MGC 50 MGC 100 Equipment Operator workstations LAN RS 232 Modem Internet Reservation systems LAN Internet Modem Operating temperature 10 40 C 50 104 F Storage temperature 4070 40 158 F Relative humidity 15 90 no condensing Operating altitude Up to approx 3 000m 10 000ft Storage altitude Up to approx 12 000m 40 000ft Chapter 1 Before You Begin Table 1 1 MGC Specifications Storage ESD 15kV Communications API to 3rd party Yes reservation systems Scheduled MGC 50 MGC 100 Unscheduled Meet Me Per e Conference MCU Channel Party Remote Yes modules cea ew Table 1 1 MGC Specifications AC Input Power Consumption AC Maximum Power consumption 100 240 VAC 50 60 Hz
13. Data Terminal Equipment DTE or Data Communications Equipment DCE Uses dialing protocols to 240 channels 184 communicate to endpoints channels using Data Terminal Equipment DTE or Data Communications Equipment DCE Audio Standard Performs audio compression 12 ports per card decompression and standard bridging conference Audio Bridge 16 participants or 30 participants Large Video Switching conference Audio Performs audio compression Audio 8A 24 48 decompression ports Audio 8V 24 ports Audio 12 24 12 24 ports Audio 24 48 24 48 ports Audio 48 96 48 96 ports video audio conferences Video Performs video processing e Single 6 ports and Transcoding Double 12 ports Video Performs video processing Up to 8 participants and Transcoding 4 25 Chapter 4 Hardware Description 4 26 Table 4 4 MGC Functional Modules Description Functional Module Function Port capacity MUX Module Multiplexes and Up to 16 ports demultiplexes audio data video and control information performs channel aggregation inverse multiplexing MUX 10 Multiplexes and 18 channels at demultiplexes audio data 128Kbps video and control information performs channel aggregation enables Encryption MUX 20 Multiplexes and 128 36 channels at demultiplexes audio data 128Kbps video and control information performs channel aggregation enables Encryption MUX 40 Mult
14. The following parameters should be modified to match the actual network 2 37 Chapter 2 Hardware Installation Table 2 2 IP Configuration Options e Ca IP Address The system displays the currently defined IP address Enter the IP address allocated to the MCU by the network administrator Subnet Mask Enter the Subnet Mask of the MCU Default Gateway Enter the IP Address of the default gateway router 11 Click OK 12 Exit the MGC Manager and switch OFF the MCU 13 Disconnect the MCU from the cross over cable 14 Connect the MCU to your site s network 15 Switch ON the MCU a Right click the MCU icon and then click Properties op ae MCUs Network ase Connect IP Configuration Mey jation rce Report Configuration MCU Time Faults MCU Utils gt Retrieve Diagnostic Files Fast Configuration Wizard Telnet IP Terminal SNMP Stop Gurrent Indication Repeating Remove MCU Reset MEU 2 38 The MCU Properties dialog box opens MGC Hardware and Installation Manual le To modify type a new Name Alpha 01 name IP Address 172 22 138 101 MCU IP address Enter the IP address of the MCU Product name Unknown as allocated by the network administrator MCU Ver MCMS Ver Cancel Advanced gt gt b Enter the IP address of the MCU as you have defined in the IP Configuration c Click OK Using a DOS
15. controller Memory UART 10 100 LAN Controller suoqyseg 9d Front Panel LEDs Memory Manager HDLC Interface vO Figure 4 19 IP and IP Network Interface Module architecture The IP and IP modules are accompanied with a LAN I O card The LAN Ethernet 10 100BaseT is connected via the I O card at the back of the MCU 4 38 MGC Hardware and Installation Manual IP Port Capacities The number of participants in a conference is limited by the Line Rates and conference type Table 4 describes the port capacities of the cards using different line rates Table 4 1 IP Port Capacities Number of Participants IP 12 IP 24 Non Sues Encrypted Encrypted 2 4 16 12 4 C C 4 39 Chapter 4 Hardware Description The MPI 8 Network Interface Module 4 40 MPI is an acronym for the Multi Protocol Interface card The MPI 8 is a serial communications interface card that uses certain protocols to communicate to endpoints Data Terminal Equipment DTE or Data Communications Equipment DCE The protocols that it uses are RS 449 RS 530 V 35 and RS 366 which is a dialing protocol The MPI 8 Network Interface Module is connected to the DCE supplied by the customer via the MPI box The front panel of the MPI 8 network interface contains two 160 pin connectors Connection to the 16
16. means that you press and hold down the Alt key while you press the P key Bold type appearing in the text or in a procedure indicates the word or the character that you should type into a text box from the keyboard It is also used to indicate the name of the menu name or command name that you should select Italic type appearing in the text or in a procedure indicates the menu name dialog box name or field name from which an option should be selected or into which parameters should be entered Tips and notes appear in a different typeface and between two bars For example This is an example of notes that you may encounter throughout this Hardware Manual 1 9 Chapter 1 Before You Begin List of Abbreviations 1 10 The following is the list of abbreviations used throughout this manual Table 1 2 Abbreviations E Multi Protocol Interface MGC Hardware and Installation Manual Installation and Configuration Workflow The MGC unit installation and configuration process includes the following main steps Hardware Installation Software Installation Database Configuration Network Services definition and the MGC unit cards configuration The Hardware Installation stage is described in this guide The remaining steps are described in the MGC Administrator s Guide as described in following flowchart Hardware Installation First Entry MCU IP Configuration MGC Manager Software Installation MGC Unit Sof
17. 1 1 MGC 50 Figure 1 2 MGC 100 Chapter 1 Before You Begin 1 2 The system meets International Telecommunication Union Telecommunication Standardization Sector ITU T formerly CCITT standards for multipoint multimedia bridging devices and meets ETSI standards for telecommunication products The MGC 100 DC also meets the NEBS Compliant Standard when so ordered for our clients based in the United States The flexible architecture in the system is designed to accommodate users changing multipoint needs This system utilizes a modular universal slot platform that allows the formation of different configurations based on users individual port capacity and functionality requirements MGC Hardware and Installation Manual MGC Unit Main Features The MGC unit offers the following features Supports a large number of ports 48 for the MGC 50 96 for the MGC 100 running at 128 Kbps Universal slots telco grade high availability with hot swappable modules redundancy on line upgrading and dynamic resource allocation Support for standard network interfaces ISDN ATM T1 CAS LAN and V 35 serial for the easy integration of conference elements into external network management and billing systems Support for up to 16 operator workstations PCs connected to either a local or remote MCU each operator workstation can be connected to several MGC units Multirate conferencing and Transcoding audio and video incl
18. 3 Release the clasp locks at the bottom and lift the MGC 50 top cover Wood Packing Case Foam Blocks Foam Blocks Figure 2 12 Unpacking the MGC 50 Lift the MGC 50 unit and remove the package base Lower the MGC 50 unit placing it on the surface If you are rack mounting the MGC 50 allow a minimum clearance of 3 inches above the unit 2 22 MGC Hardware and Installation Manual Mounting the MGC 50 on a Rack The MGC 50 can be mounted in a 19 rack using two mounting plates Kit 2012A The side plates are usually mounted when shipped but if not follow the directions below to install the mounted plates on the MGC 50 and then mount the MGC 50 on the 19 rack To install and mount the MGC 50 1 Make sure that the MGC 50 power is turned OFF and it is disconnected from the AC power Remove the five nylon plug hole covers from the MGC 50 protective side covers using a slotted screwdriver Using an Allen wrench M4 remove the five screws from the MGC 50 side covers Remove the MGC 50 side covers from both sides front remove screws To remove the plate from both MGC 50 sides the side screws have to be removed To remove the screws from the left side the main control module and the power supply must be removed first These procedures are described in Chapter 5 of this manual For detailed procedures see Chapter 5 Replacing the Main Control Module on page 5 17 For instructions on how to rem
19. 4 1 Chapter 4 Hardware Description MGC 100 Components Location Figure 4 1 shows the front panel of the MGC 100 The front panel provides access to the Main Control Module the Functional Modules and the Power Supply Modules Status LEDs on the Main Control Module Functional Modules and Power Supply Modules indicate the status of the system Main Functional Modules Floppy Disk Drive Power Supply Module Handle COM Port Figure 4 1 MGC 100 front panel 4 2 MGC Hardware and Installation Manual Figure 4 2 shows the rear panel of the MGC 100 The rear panel provides access to the network I O card connectors I O cards are inserted via the rear panel In addition the rear panel houses the main power switch AC inlet fans the circuit breaker additional communications ports and alarm ports The alarms port provides dry contacts for critical major and minor alarms Slot A RS232 Network Main Control Connectors Connectors Module Cover Main Switch and Circuit Breaker AC Inlet Dry Contacts RJ45 Connector Fan Figure 4 2 MGC 100 rear panel with external connectors 4 3 Chapter 4 Hardware Description Figure 4 3 shows the front panel of the MGC 100 NEBS Standard The front panel as in the MGC 100 provides access to the Main Control Module the Functional Modules and the Power Supply Modules Status LEDs on the M
20. Cards Main Control Module Function Modules FRONT Figure 4 8 MGC 50 top inside view 4 9 Chapter 4 Hardware Description Main Control Module The Main Control Module performs the functions of conference setup conference teardown and resource allocation in both the MGC 100 and the MGC 50 The Main Control Module has an Intel based Pentium processor a hard disk drive and 256 MB of memory To enable 2000 reservations the MCU Main Control Module must contain at least 128 MB of memory The front LED s indicate the status if the module is in operation and functioning properly Figure 4 9 shows a block diagram of the Main Control Module Communications Controller Serial Interface LAN Interface Floppy Disk Drive Figure 4 9 Block diagram of MCM 4 10 Lg MGC Hardware and Installation Manual The MGC unit can contain different types of IP network cards The Main Control Module operating system includes drivers for all of the cards The Main Control Module s operating system automatically detects the card type If the card is correctly identified the system starts up correctly If the system fails to detect any card type it will start up according to the card type definition in the system cfg file The Main Control Module includes several connectors These are connected to ports on the chassis Two types of connectors on the rear panel provide connections from the MGC to various external sy
21. Diskette with the Updated LAN CFG File 1 Using Windows Notepad create a new text file with the following text IP_ADDRESS aaa bbb ccc ddd NETWORK_MASK aaa bbb ccc ddd DEFAULT_GATEWAY aaa bbb ccc ddd where aaa bbb ccc and ddd are numbers between 0 to 255 as follows Table 2 3 IP Configuration Options ono pee IP Address Enter the IP address allocated to the MCU by the network administrator Subnet Mask Enter the IP address of the subnet mask Default Gateway Enter the IP address of the default gateway 2 39 Chapter 2 Hardware Installation 2 Save the information creating a text file named LAN CFG 3 Copy the file to an empty DOS diskette 4 Turn on the MCU and wait for the Power LED to blink 5 Insert the DOS diskette to the MCU diskette drive 6 The MCU reads information from the diskette several times Wait for the floppy to stop blinking 7 Remove the diskette from the diskette drive Connect the MCU to your site s network 9 Define anew MCU using the IP address you have entered in the LAN CFG file a In the Browser pane right click the MCUs Network icon and then click New MCU The Add MCU dialog box opens x Name poo IP Address eee Product name i MCU Ver i MCMS Ver Advanced gt gt b In the Name box enter the name of the MCU Specify a name that clearly identifies the MCU c Inthe ZP Address box enter the default IP Address of the MCU as e
22. MGC 100 Components MGC Hardware and Installation Manual Figure 3 3 describes the functional block diagram of the complete MGC 50 Backplane Main Control Module Power Supply Module Figure 3 3 MGC 50 components 3 3 Chapter 3 System Architecture Figure 3 4 shows the physical layout of the MGC 100 and how it interfaces with the outside world Operator Workstation lt r gt RS232 Ethernet RS232 H Ww Ww Hard Main LAN Serial Comm Main Disk CPU Interface Inteface Controller Control An i Module M y CPU Bus i A _ t ba ae nn a aE I gt l Control Bus 17 L r p 1 r 1 r I I l I I i I l t I l l l l l l Functional l l r 1 1 l 1 ISDN H323 ATM MPI i Modules nework Network Network Network doa Se Riza ui Interface Interface Interface Interfacel ocu e odule ati A T l ui i m DCE MPI Box i d is LEA L Figure 3 4 MGC unit functional block diagram 3 4 a MGC Hardware and Installation Manual Figure 3 5 shows the physical layout of the MGC 100 and how it interfaces with the outside world
23. NEBS Standard Unit Front View MGC Hardware and Installation Manual Connecting and Setting Up the MGC 100 Use the MGC 100 rear panel diagram below for reference Slot A RS232 Network Main Control Connectors Connectors Module Cover ALARMS Main Switch and Circuit Breaker AC Inlet Dry Contacts RJ45 Connector Fan Figure 2 5 MGC 100 Rear Panel with External Connectors To connect the MGC 100 to the network and power source and set up the system the following procedures are performed e Connecting the MGC unit to the power source AC inlet or 48DC power distribution unit e Connecting the MGC unit to the LAN Network e Connecting the MGC unit to the Operator Workstation PC directly via RS 232 optional e Connecting the MGC unit to the network s 2 9 Chapter 2 Hardware Installation 2 10 MGC 100 Dongle MGC 100 is shipped with a serial dongle installed on COMI on the MCU rear panel The dongle is required for normal operation of the MCU If the dongle is missing please contact support Connecting to the power source You can connect to an AC Inlet or to DC power supply according to the power system used in your site Follow the steps appropriate to your power system The following restrictions apply to the conductors and connectors that may be used to ground the unit when rack mounted When using bare conductors
24. a conference using a line rate of 128 Kbps In a system with both MUX and MUX cards non encrypted participants are assigned ports based on available MUX MUX resources the requested line rate and MUX card configuration The resource report mechanism first allocates resources on the regular MUX card before allocating non encrypted participants to the MUX thereby saving resources on the MUX In this scenario the allocation mechanism first checks if the MUX is identical to the card requested line rate configuration If it is the system allocates resources on the MUX card If not it will reserve resources on the MUX card to prevent fragmentation and prevent resources For example a standard MUX card configured to support a line rate of 384 Kbps a participant connecting at this identical line rate is reserved on a MUX card However a participant connecting at a line rate of 128 Kbps is allocated a port on MUX card to save resources If the MUX has no resources available the participant is re allocated to the standard MUX card 4 49 Chapter 4 Hardware Description 4 50 The following table details the number of ports available with the MUX cards Table 4 2 MUX Cards Port Capacity Number of non Number of encrypted ports encrypted ports capacity capacity Participant Line Card type Rate MUX 10 a A E MUX 20 e re a MUX 40 o pe p p O fe e a MGC Hardware and Installation Manual Table 4 2 MU
25. all the external cables ii GUI ii Using the cable provided with the MPI kit connect the 160 pin connector to Port A of the MPI 8 Network Interface front panel Connect the other end of the cable to a Ports 1 4 160 pin connector of the MPI Box by doing this procedure we have utilized the MPI Box as a MPI 4 tm oja _ _ Using a second cable connect the angled 160 pin connector to Port B of the MPI 8 Network Interface front panel Connect the other end of the cable to B Ports 5 8 160 pin connector of the MPI Box Using this procedure we have utilized the MPI Box as a MPI 8 2 19 Chapter 2 Hardware Installation 2 20 10 Connect the serial cable running from the DCE to the appropriate 37 pin connector on the rear panel of the MPI Box If dialing is used connect the appropriate cable from the DCE to the 25 pin connector on the rear panel of the MPI Box Whenever the MGC unit is used as a DCE and connected straight to an endpoint the serial data stream flows from
26. be grounded with two hole compression type connectors using copper conductors tinned or untinned Wire bus bar or braided strap connectors are acceptable Mounting the MGC 100 on a 19 Rack 2 6 The MGC 100 can be mounted in a 19 rack using the mounting kit P N KIT2026A It is highly recommended that the 19 rack be located in an air conditioned room Figure 2 3 shows how to mount the MGC 100 on the 19 rack 19 Attachment Bar Figure 2 3 MCU Rack Mount MGC Hardware and Installation Manual Because of heat considerations the MCU must be installed with the Control Unit Module placed on the left bottom 1 Check that all the parts are in the kit The kit should contain the following items Table 2 1 19 Rack Mounting Kit MEC2063A 23 TO 19 Mounting Bar MGC 100 at 90 Degrees 2 SCR2005A Screw 10 32 x 1 2 Allen S H ST ST 3 WAS2003A Washer M5 Spring Latch Loc ST ST WAS2004A Washer M5 Flat ST ST 2 Make sure that the MCU power is turned OFF and it is disconnected from the AC and DC power Remove the side covers as described on page 2 4 3 Ifthe MCU is a standalone unit you must first remove the side covers and add the mounting brackets to a 23 rack see pages 2 4 to 2 6 4 Attach the two mounting bars to the MCU as follows Fit the spring washer Item 3 onto the screw 2 b Fitthe flat washer Item 4 onto the screw ltem 4 Item 3
27. install the MPI 8 Network Interface Module 1 Slide the MPI 8 Network Interface module into a free slot in the MCU front panel Push the MPI 8 Network Interface module firmly into the Backplane making sure it is properly seated in its slot Tighten the screws on the front panel of the MGC 50 that secure the MPI 8 Network Interface module To mount the MPI Box on the Rack for the MGC 50 L 2 Turn OFF power to the MCU and unplug it from AC power If the MCU is rack mounted disconnect all external cables dismount the MCU from the rack and place it on a desktop or work table Place the MPI box with is four 160 pin connectors facing the MGC 50 front panel between the two rails of the rack Secure it to the rack with the screws supplied with the MPI Box Pons Oo oo Pons Ta 212 Connect all the external cables to the MPI box Using the cable provided with the MPI kit connect the 160 pin connector to Port A of the MPI 8 Network Interface front panel Connect the other end of the cable to a Ports 1 4 160 pin connector of the MPI Box Again by doing this procedure we have utilized the MPI Box as a MPI 4 2 33 Chapter 2 Hardware Installation Using a second cable connect the 160 pin connector to Port B of the MPI 8 Network Interface front panel Connect the other end of the cable to B Ports 5 8 160 pin connector of the MPI Box By doing this procedure we have utilized the MPI Box as a MPI 8
28. ipha 12 Normal The SysConfig dialog box opens SysConfig system cfg 172 22 138 116 al 5i 4 71 Chapter 4 Hardware Description 2 Double click on the GREET_AND_GUIDE line in the Section box The Greet and Guide hardware items appear in the Item Value box SysConfig system cfg 172 22 138 116 Section GREET AND GUIDENVR Item Value NAB PLUTO ENABLE_IVR_VIDEO YES LEADER_RECOVERY_TIME 60 Q amp A YES DEFAULT_PASSWORD_LENGTH 6 MAX_PASSWORD_LENGTH 16 MIN_PASSWORD_LENGTH 4 LEADER_WAITING_TIME_OUT 20 di Cancel m ADD Section Sub section l QUICK_LOG_IN_VIA_ENTRY_QUEUE YES Item START_IVA_VIDEO_DELAY TIME 6 INVITE YES REMOVE Secti Li Sub section Item Edit value Make sysenc file These values are set according to the Hardware installed in the system 4 72 5 System Maintenance The MGC is designed with ease of maintenance in mind Most components are hot swappable and are accessible directly via the front panel or the rear panel Each module includes LED indicators which reflect the state of the module The LEDs are located on the front panel of the MGC All external connectors are located on the rear panel The main power switch is also located on the rear panel This chapter contains the following sections e A description of the controls and LED ind
29. module contains 13 units The first unit is the Audio Bridge which is the controller used for audio mixing of the participants and to identify the conference speaker The remaining 12 units 2 to 13 are used to connect the audio channels of the participants one unit per codec Each codec performs audio coding and decoding Each codec works with one endpoint and is capable of using any of the following audio algorithms G 711 G 722 G728 G 722 1 and Siren7 The module may contain two additional units 14 and 15 These units are used for Greet and Guide conferences and have to be configured in the system cfg In such a case port number 14 is used for music and port number 15 is used for the audio message used in Greet and Guide conferences The Audio Bridge can run four conferences simultaneously totaling up to 16 participants 4 16 To increase the maximum number of participants to 30 participants set the Audio Bridge to 1 30 If the Audio Bridge is set to 1 30 it can run only one conference at a time if the conference includes up to 16 participants and not all the resources are used The audio card can support up to six gateway sessions with a maximum of 12 participants To enable the gateway sessions set the Audio Bridge to 6 12 When set to 6 12 the audio cards can run only six conferences with two participants gateway sessions The bridge can use units from the same audio card or from different cards The Audio cards are set
30. mounted When using bare conductors they must be coated with an appropriate antioxidant compound before crimp connections are made Tinned solder plated or silver plated connectors do not have to be prepared in this manner Multiple connectors should not be secured with the same bolt assemblies Listed fastening hardware must be compatible with the materials being joined and must avoid loosening deterioration and electrochemical corrosion of the hardware and joint materials 2 27 Chapter 2 Hardware Installation 2 28 Connecting the MGC 50 to the LAN Network Connect one end of a network cable to the LAN connector on the rear panel of the MGC and the other end to the network o LAN 10 100 mbits Connecting the MGC 50 to the Operator Workstation PC Directly via RS 232 Optional Connect one end of an RS 232 cable to the COM 2 connector on the front panel of the MGC Control Unit and the other end to the serial port of the operator station See RS 232 Pin Assignment A 3 Connecting the MGC 50 to the Network To connect the MGC 50 to the ISDN network and T1 CAS network This is an optional Network Interface Card If the MGC 50 has to be connected to the public ISDN network then an external CSU or where required similar equipment is needed T1 CAS network is optional It allows you to connect Audio Only participants to conferences via T1 CAS lines It uses the same network connections as ISDN and the
31. procedure described below is applicable to both ISDN and T1 CAS lines e Connectthe8 pin RJ 45 connector of the network cable to the NET RJ 45 jack on the rear panel of the MGC Repeat this step for each of the ISDN network lines to be connected to the Network Interface card installed in the MCU MGC Hardware and Installation Manual Y TAANIS ISDN network ISDN Network connection ISDN Network connection connection for 4 spans for 8 spans Figure 2 14 ISDN network connection e Leased lines should be connected using an adapter with a screw connector for solid conductor wires with a diameter in the range 0 4 to 0 6 mm Use Polycom P N CBL0602A or similar adapter Connect one side of the adapter to the NET RJ 45 jack on the rear panel of the MGC Then connect the leased line wires to the other side of the adapter The ISDN and T1 CAS network properties must be defined in the Network Services For details see the MGC Administrators Guide Chapter 3 2 29 Chapter 2 Hardware Installation 2 30 Q Connecting the MGC 50 to the ATM Network The MGC 50 can be connected to an ATM network The type of connection used differs according to the ATM Network Interface card installed in the MCU If an ATM 25 network interface card is installed connect the 8 pin RJ 45 connector of the network cable to the NET RJ 45 jack on the rear panel of the MGC Figure 2 15 ATM 25 network connection If an A
32. the MGC 100 1 2 2 When you receive your MGC 100 inspect the equipment for damage and verify that the components match the packing slip If you did not receive a component or if there is damage to the system notify your service representative immediately Wood Packing Case Carrying Strap Lock in Closed Position Lock in Open Position Figure 2 1 MGC 100 package Place the MGC 100 unit on a stable flat surface in a location that meets the MGC environment requirements which are Operating temperature 10 40 C 50 104 F Humidity 15 90 non condensing Altitude Up to 3 000m 10 000ft ESD 8 kV MGC Hardware and Installation Manual 3 Release the clasp locks at the bottom and lift the MGC 100 top cover Wood Packing Case Foam Block Foam Block Figure 2 2 Unpacking the MGC 100 4 Lift the MGC 100 unit and remove the packaging material Lower the MGC 100 unit placing it on the surface If the MGC 100 is a standalone unit place it on a flat surface If you are rack mounting the MGC 100 allow a minimum clearance of 3 above the unit If you are rack mounting the NEBS MGC 100 the 3 above the unit is not needed Refer to the NEBS Standards for clearance compliance 2 3 Chapter 2 Hardware Installation Mounting the MGC 100 on a 23 Rack The MGC 100 can be mounted to a 23 rack using the two mounting plates that are pre installed on the unit 2 4 1 di Ma
33. the MGC 100 and the MGC 50 The Information Highway transfers information from the Network Interface Modules to the MUX Modules and from the MUX Modules to the Audio Video and Data Modules except during IP calls In IP calls H 323 and SIP the information is transferred directly to the IP network module and from there to the Audio Video and Data modules Powerplane The MGC 100 as opposed to the MGC 50 uses a Powerplane Up to three Power Supply Modules can be plugged into the Powerplane The Powerplane and Power Supply Modules are designed to accommodate hot swapping of power supplies In the MGC 50 there is one power supply which is connected to the backplane and fans via wire leads 4 19 Chapter 4 Hardware Description Power Supply Module Both MGC units MGC 100 and MGC 50 operate at 100 240 volts AC 50 60 Hz Power Module in the MGC 100 4 20 Up to three redundant power supplies N 1 provide backup for the system to ensure multipoint service is not interrupted as a result of any single power supply failure The Power Supply Modules are hot swappable and connect to the Powerplane which is part of the Backplane The power supply automatically senses the AC input voltage One Power Supply Module is required to power a partially populated system Two Power Supply Modules are required to power a full system or a partially populated system with power supply redundancy Three Power Supply Modules are required to po
34. the endpoint DTE through the serial connector to the MPI box The connections stay the same meaning the endpoint is connected to the back of the MPI box by way of the 37 pin connector and the other side of the MPI box is then connected by way of the 160 pin connector to the MPI card in the MGC unit For more information refer to Chapter 4 The MPI 8 Network Interface Module on page 4 40 If V 35 or RS 530 cable is used attach the special adapter provided with the kit to the 37 pin prior to connecting the serial cable from the DCE The serial MPI network properties must be defined in the Network Services For details see MGC Administrator s Guide Chapter 3 MGC Hardware and Installation Manual MGC 50 Hardware Installation Unpacking and Positioning the MGC 50 To unpack and position the MGC 50 1 When you receive your MGC 50 inspect the equipment for damage and verify that the components match the packing slip If you did not receive a component or if there is damage to the system notify Polycom immediately Wood Packing Case Lock in Closed Position Lock in Open Position Figure 2 11 MGC 50 package Place the MGC 50 unit on a stable flat surface in a location that meets the MGC 50 s environment requirements which are Operating temperature 10 40 C 50 104 F Humidity 15 90 noncondensing Altitude Up to 3 000m 10 000ft ESD 8kV 2 21 Chapter 2 Hardware Installation
35. they must be coated with an appropriate antioxidant compound before crimp connections are made Tinned solder plated or silver plated connectors do not have to be prepared in this manner The same bolt assemblies should not secure multiple connectors Listed fastening hardware must be compatible with the materials being joined and must be preclude loosening deterioration and electrochemical corrosion of the hardware and joint materials To connect to the AC Inlet 1 Make sure the power switch is OFF Insert the power cable into the power connector on the rear panel of the MGC 100 unit Main Switch AC Inlet Insert the power cable into the power source socket Turn on the power by pressing on the power switch located on the rear panel of the MGC 100 unit MGC Hardware and Installation Manual To connect to the 48DC power system 1 Make sure the power switch is OFF Turn off the DC power distribution unit 2 Using the three wires 10 AWG cable running from the DC power distribution unit connect the black wire into the 48IN terminal block and the red wire to the 48V RTN terminal block 3 Connect the green or green yellow wire to the system single point Ground screw If the unit is rack mounted the single point ground on the MCU must be connected to the rack with a single conductor and attached as to prevent loosening When using bare conductors they must be coated with an appropriate antio
36. to an H 323 Network Interface Module Figure 4 39 One H 323 Network connection The Music IO Card enables importing audio music from an external source such as a CD player tape radio etc It includes a Line in jack and headphone output The music is available to all endpoints ML E BO o 20 LINE I o z Figure 4 40 Music IO card 4 66 MGC Hardware and Installation Manual Greet and Guide Hardware Kit 3 When an Audio card is active on the MCU you are not required to install the Greet and Guide Hardware kit In the Audio card this is replaced by the IVR functionality a software module If you are upgrading the MCU to the Greet and Guide mode you need to install the Greet and Guide hardware kit The Greet and Guide hardware kit includes the following Audio Message daughter card not necessary if Audio card is installed a special daughter card which is attached to one of the standard Audio Functional Modules It stores up to eight audio messages four Attended messages and four On Hold messages that can be played while the participants wait in the Welcome queue or the On Hold queue Only one daughter card per MCU can be installed In the Audio 8 card and Audio 15 the voice messages are stored on the cards The daughter card serves as a music port only Music I O card an I O card which is attached to the rear of the standard Audio module on the MCU s rear panel It is use
37. 0 MPI Box rack mounting options MGC Hardware and Installation Manual To install the MPI 4 8 Network Interface Module 1 Slide the MPI 4 8 Network Interface module into a free slot in the MGC front panel Push the MPI 4 8 Network Interface module firmly into the Backplane making sure it is properly seated in its slot Tighten the screws on the front panel of the MGC 100 that secure the MPI 4 8 Network Interface module To install the MPI Box on Top of the MCU 1 2 Turn OFF power to the MCU and unplug it from AC power If the MCU is rack mounted disconnect all the external cables dismount the MCU from the rack and place it on a desktop or work table If it is a standalone unit remove the MCU side panels Remove the two Phillips screws on each side of the MCU near the rear panel rear remove screws 2 17 Chapter 2 Hardware Installation 4 Place the mounting bracket on top of the MCU aligning it against the screw openings as shown below and tighten the screws tighten screws front Mount the bracket on the other side of the MCU repeat step 4 6 Place the MPI box with its four 160 pin connectors facing the MCU front panel between the two mounting brackets Secure it with the screws supplied with the MPI Box rear MGC Hardware and Installation Manual If the MCU is standalone reassemble the side panels If the MCU is rack mounted mount the unit on the rack and connect
38. 0 pin connector on the front panel of the MPI box Connection to the 160 pin connector on the front panel of the MPI box Figure 4 20 MPI 8 Network Interface Module front panel MGC Hardware and Installation Manual Each 160 pin connector can be connected to one 160 pin connector located on the front panel of the MPI box 160 pin connector Converts data from four ports ii SSSR PORTS A OE 14 O A PORTS 9 12 PORTS BOEn KO 5 8 S O B PORTS 13 16 160 pin connector Converts data from four ports Figure 4 21 MPI box front panel Each of the 160 pin connectors on the MPI box interfaces to four serial ports found on the back of the MPI box Therefore each MPI 8 Network Interface module can be connected to up to eight ports Each port has two connectors 37 pin connector and the 25 pin connector The 25 pin connector is used to dial to an endpoint over an ISDN switch In leased line connection this port is not used The 37 pin connector connects to the serial cable coming from the DCE RS 336 25 pin RS 449 37 pin Single port D type D type connection connector connector lr ee
39. 3 1 24 E poo 1 43 1 44 or higher If the High Bit Rate flag is set to Yes and the MCU contains video cards of a version older than 1 43 the MCU status changes to Major and an appropriate error message is added to the Faults log In such a case the highest line rate that can be set for the conference is 768 Kbps If the High Bit Rate flag is set to No the high bit rate option is disabled and the highest conference rate is limited to 768 Kbps Video Module 4 60 The Video module supports up to 8 participants per module In addition it provides the following features enhancements e Click amp View A graphical console transmitted to endpoints enabling the users to change their personalized video layout or conference e Personal Layout Definition and on the fly modification of individualized participant Continuous Presence layouts For details see Personal Layout e Visual Effects Definition of background colors frame colors and frame widths for Continuous Presence layouts For details see Visual Effects MGC Hardware and Installation Manual e Quad Mode Continuous Presence Additional Continuous Presence layouts suitable for large conferences i e 4x4 e H 263 video protocol at 30 Frames Per Second e Improved Video Quality e Improved Continuous Presence image quality at high bit rates 1 52 Mbps e No fragmentation Conferences can be run across Video cards e Large Continuous Presence conferences C
40. 3 POLYCOM Polycom MGC 50 MGC 100 Hardware amp Installation Guide Version 9 0 4 August 2010 DOC2237A Trademark Information Polycom the Polycom Triangles logo and the names and marks associated with Polycom s products are trademarks and or service marks of Polycom Inc and are registered and or common law marks in the United States and various other countries All other trademarks are the property of their respective owners Patent Information The accompanying product is protected by one or more U S and foreign patents and or pending patent applications held by Polycom Inc 2010 Polycom Inc All rights reserved Polycom Inc 4750 Willow Road Pleasanton CA 94588 2708 USA No part of this document may be reproduced or transmitted in any form or by any means electronic or mechanical for any purpose without the express written permission of Polycom Inc Under the law reproducing includes translating into another language or format As between the parties Polycom Inc retains title to and ownership of all proprietary rights with respect to the software contained within its products The software is protected by United States copyright laws and international treaty provision Therefore you must treat the software like any other copyrighted material e g a book or sound recording Every effort has been made to ensure that the information in this manual is accurate Polycom Inc is not responsib
41. 30 Pin out DB 25 SOURCE SIGNAL DESIGNATION Return Transmitted Data B DCE Transmit Signal Element A Return Received Data B DCE Receiver Signal Element Timing A DTE Local Loopback Return Request to Send B DTE DTE Ready A DTE Remote Loopback Return DCE Ready B Return DTE Ready B DTE Ext Transmit Element Timing A DCE Test Mode SOURCE SIGNAL DESIGNATION Common Receive Common Se KG Resync B Return Send Data B Return Send Timing B Return Receive Data B Return Request to Send B Return Receive Timing B Return Clear to Send B DTE Terminal in Service Return Data Mode B Return Terminal Ready B Return Receiver Ready B DTE Select Standby DCE Signal Quality DTE New Signal Return Terminal Timing B DCE Standby Indicator Common Send Common PIN PIN NO NO 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 ANDAR WD Si Leen ee ct oS sok ea ae OmMmVNOaOKR WDD 0 Figure A 5 RS 449 Pin out DB 37 SIGNAL SOURCE DESIGNATION Shield Common Transmitted Data A DTE Received Data A DCE Request to Send A DTE Clear to Send A DCE DCE Ready A DCE Signal Ground Common Received Line Signal Detector A DCE Receiver Signal Element Timing B Return Received Line Signal Detector B Return Ext Transmit Signal Element Timing B Return Transmit Signal Element Timing B Return Clear to Send B Return SIGNAL SOURCE DESIGNA
42. 5 2 On when a failure has occurred refer to Table 5 2 On when the module is handling a conference refer to Table 5 2 Span A yellow alarm RAI Span A red alarm LOS Span B yellow alarm Span B red alarm Span x is not in use Span x is OK Span x yellow alarm RAI Span x red alarm LOS Span x is not in use Span x is OK Span x yellow alarm RAI Span x red alarm LOS Span x is not in use Span x is OK Span x yellow alarm RAI Span x red alarm LOS Power in from mains is OK DC power out to backplane is OK 5 5 Chapter 5 System Maintenance The three Functional Module LEDs function as a group Each state of the Functional Module and its associated LED array is described in Table 5 2 The IDLE ACTIVE FAILURE and PARTIAL FAILURE states are the operational modes of the Functional Module The RESET WAITING FOR MCMS and LOADING SOFTWARE indicates the stages during the startup procedure of the Functional Module Figure 5 2 Function Module LEDs Module State STBY FAIL ACTIVE IDLE Ready but not used in a conference ACTIVE Used in one or more conferences FAILURE Error state board is OFF out of operation PARTIAL FAILURE Error state ON OFF part of board is out of operation TEST Power on selftest on self test EIN CAN IC Flashing WAITING FOR MCMS Waiting for MCMS to start loading software 5 6 MGC Hardware and Installation Manual MGC Unit Rear Panel The re
43. Architecture Figure 4 25 MPI 8 Network Interface module architecture shows the architecture for the MPI 8 Network Interface Module TDM Interface Bit Rate I F 1 lt _ gt PHYI F TDM I F Bit Rate I F 2 gt PHYI F Watch Dog HDLC Interface Figure 4 25 MPI 8 Network Interface module architecture The MUX Module multiplexes and demultiplexes the audio video data and control information Information arrives at the MUX Port in Nx56 64 Kbps channels formatted according to the ITU T H 221 standard for framing Frame Structure for a 64 Kbps to 1920 Kbps Channel in Audiovisual Teleservices H 323 video conferences do not require a MUX card The H 323 card has a build in MUX functionality MGC Hardware and Installation Manual The MUX Module receives information in one of the following standard formats e Hyper channel or multi rate ISDN e Aggregated channel using the BONDING Mode 1 standard from 2 channels of 56 64 Kbps to 30 channels of 56 64 Kbps e Aggregated channel using the ITU T H 221 standard for channels with data rates of up to 6x56 64 Kbps The MUX Module supports up to 16 MUX ports Each MUX port supports one site The MUX Module supports e Up to 16 ports at low data rates of 128 384 Kbps e Up to 8 ports at m
44. GC 50 Use the MGC 50 rear panel diagram below for reference Main Control Module Cover Connector Figure 2 13 MGC 50 Rear Panel with External Connectors To connect the MGC 50 to the network and power source and set up the system the following procedures are performed e Connecting the MGC unit to the power source AC inlet e Connecting the MGC unit to the LAN Network e Connecting the MGC unit to the Operator Workstation PC directly via RS 232 optional Connecting the MGC unit to the network s MGC 50 Dongle MGC 50 is shipped with a serial dongle installed on COMI on the MCU rear panel The dongle is required for normal operation of the MCU If the dongle is missing please contact support 2 26 MGC Hardware and Installation Manual Connecting to the Power Source To connect to the AC Inlet 1 Make sure that the power switch located on the rear panel of the MGC unit is off Insert the power cable into the power connector on the rear panel of the MGC 50 unit Insert the power cable into the power source socket Turn on the power by pressing on the power switch located on the rear panel of the MGC 50 unit If the unit is rack mounted the single point ground on the MCU 50 must be connected to the rack with a single conductor and attached so that it prevents loosening The following restrictions apply to the conductors and connectors that may be used to ground the unit when rack
45. GC unit and the ISDN network It supports up to two PRI connections of the same type E1 T1 One ISDN Network Interface module in each MGC unit serves as the master clock which synchronizes the system clock to the ISDN network clock The second module provides a backup clock which is used if the master clock fails Two types of Net E1 Net T1 ISDN Network Interface modules are available e The NET T1 Network Interface Module supports channels at data rates of Nx56 64 Kbps to 1536 Kbps The module provides channel allocation options as described in Table 4 6 e The NET EI Network Interface Module supports channels at data rates of Nx56 64 Kbps to 1920 Kbps The module provides channel allocation options as described in Table 4 7 Table 4 6 NET T1 channel allocation Line type Channel allocation Signaling supported ISDN 23x56 64 Kbps Variety of North American multimedia channels signaling protocols 64 Kbps D channel including AT amp T 4ESS signaling 5ESS and Northern Telecom DMS 100 and DMS 250 Point to point leased Transmission without signaling Table 4 7 NET E1 channel allocation Line type Channel allocation Signaling supported ISDN 23x64 Kbps multimedia Euro ISDN Standard ETSI channels 64 Kbps D NET 5 channel signaling Point to point leased Transmission without signaling 4 28 MGC Hardware and Installation Manual ISA Interface Card Manager HDLC Interface Figure 4 14 Net E1 Ne
46. Holes to Secure Cards Slide in the Audio module Push the Audio module firmly into the backplane making sure it is properly seated in its slot Tighten the screws on the front panel of the MGC unit to secure the Audio module Attaching the Music I O Card to the Audio Module The Music I O card is used to attach an external audio device such as a tape recorder or CD player to playback music or recorded messages to participants waiting in the Welcome queue during Greet and Guide conferences The Music I O card is inserted in the rear panel of the MGC unit and it is attached to the Attended Audio module To install the Music I O card in the rear panel of the MGC unit Carefully slide the Music I O card into the slot in the backplane where the Attended Audio module is inserted in the front 4 69 Chapter 4 Hardware Description 4 70 Backplane Main Control Module Power Supply Module 2 Tighten the screws on the rear panel of the MGC unit to secure the Music T O card Enabling the Audio Message Daughter Card and Music I O Card in the MCU Software Once the Audio Message daughter card and the Music I O card are installed the system automatically identifies them However if you are upgrading the MCU by adding the Message daughter card and the Music I O card you may have to enable them in the MCU software MGC Hardware and Installation Manual 1 Select Edit system cfg from the MCU Utils sub menu MM
47. IO 25 card and the ATM 155 Network Interface Module is used with the IO 155 card Figure 4 17 shows the architecture for the ATM Network Interface Module The card architecture is identical to both card types Card Manager Figure 4 18 ATM 25 and ATM 155 Network Interface Module 4 34 MGC Hardware and Installation Manual IP and IP Network Interface Module The IP and IP Network Interface Modules support participant connections using H 323 communication standards The IP Network Interface Module also supports SIP participants H 323 is a standard for audio video and data communications across IP based LAN networks including the Internet H 323 allows endpoints to use multimedia applications without changing the network infrastructure H 323 also allows device independent communications between different endpoints Conference participants therefore do not have to worry about devices and compatibility Session Initiation Protocol SIP is an application layer protocol designed to work over IP networks SIP can establish modify and terminate multimedia sessions conferences The IP and IP modules provide bandwidth management that ensures that corporate networks will not be clogged and critical data cannot be disrupted Network managers can limit the number of simultaneous IP connections within their network or the amount of bandwidth available to IP applications The IP and IP Network Interface modules combine two very
48. If present disconnect MGC Hardware and Installation Manual 6 Use the plastic ejectors to pull the Control Unit out of its slot 7 Slide the Main Control Unit out through the front panel and remove the Control Unit from the MCU Control Unit Installation Installing the Control Unit on the MCU 1 Ensure that the MCU is OFF and the power cord is disconnected 2 Slide in the new Control Unit making sure that no internal cables block or are damaged in any way 3 Push the Control Unit firmly into the backplane slot and make sure it s properly seated in its slot 4 Tighten the four screws that attach the Control Unit to the MCU chassis Reconnect disconnected cables to the Control Unit 4 13 Chapter 4 Hardware Description Attach the rear panel back on the chassis Connect the power cord to the power source and switch ON the main power switch on the rear panel 8 Open the MGC Manager application 9 Configure the MCU s IP Address as specified in the First Entry IP Configuration section below IP Configuration Change For more information see IP Configuration Change on XPEK and pSOS OS on page 2 35 of this manual Hard Drive Operation The removable Hard Drive is not hot swappable Insertion or removal of the Hard Drive requires MCU Shutdown LS Turning the hard drive key when the MCU is ON can result in Hard Drive failure 4 14 MGC Hardware and Installation Manual Inserting the Har
49. Installation Installing the MGC unit and connecting it to the operator workstations Chapter 3 System Architecture Describes the system architecture and the data flow e Chapter 4 Hardware Description Describes the various components that make up the MGC unit e Chapter 5 Maintenance Describes the controls and LED indicators and provides maintenance procedures e Appendix A Interfaces Pin Assignment Describes the pinout of the various MGC unit connectors Conventions MGC Hardware and Installation Manual Before using this manual it is important for you to understand the terms and conventions used 3 The term Choose or Double click is used when you need to activate a menu command or a command button in the dialog box The term Select or Click is used to highlight a part of the window dialog box or menu that you want to be changed with your next action The term Right click is used when you press and release the right mouse button to open a pop up menu The term Choose OK means that you can either click the OK button with the mouse or press the lt Enter gt key on the keyboard Keyboard keys appear in capital letters between these two symbols lt gt For example the Shift key appears as lt Shift gt The plus sign between two key names indicates that you must press and hold down one key while pressing down the second key For example press lt Alt gt lt P gt
50. Net 8L network interface of the MGC unit Telephone Network Lines NE n w n o COCCO e O oo Figure 4 17 Net 2 Net 4 Net 8 ISDN T1 CAS and Net 8L ISDN Network Interface Block Diagram The ISDN Network Interface Module is connected to the telephone network via the IO card IO 2 IO 4 or IO 8 which is connected to the PABX and CSU The customer is responsible for supplying the PABX and CSU The ISDN data stream flows from the ISDN telecommunication network through the PABX gt CSU gt MGC RJ 45 input connector gt IO card IO 2 IO 4 or IO 8 gt Backplane connectors gt Network Interface Module to the Backplane information bus 4 33 Chapter 4 Hardware Description ATM Network Interface Module The ATM Network Interface Module provides the interface between the MGC unit and ATM network The ATM card may be shipped in two configurations ATM 25 Network Interface Module that supports one 25MB connection using RJ 45 connector and ATM 155 Network Interface Module that supports one 155MB connection using a fiber optics connector The ATM 25 FVC Network Interface Module supports up to 10 H 321 endpoints at 2B or 384 Kbps using First Virtual FVC technology The ATM 155 FVC Network Interface Module supports up to 20 H 321 endpoints at 2B or 384 Kbps using First Virtual FVC technology The ATM 25 Network Interface Module is used with the
51. Network Services For more details see the MGC Administrator s Guide Chapter 3 2 14 MGC Hardware and Installation Manual To connect the MGC 100 to the IP network If an IP network Interface card is installed in the MGC 100 connect the 8 pin RJ 45 connector of the LAN network cable to the LAN 323 RJ 45 jack on the rear panel of the MGC 100 Figure 2 9 LAN H 323 network connection the shield is grounded at both ends when connecting to the IO LAN port of the When installing a NEBS compliant system use only shielded LAN cables where ls IP 48 on the MGC rear panel The IP network properties must be defined in the IP Network Service For details see MGC Administrator s Guide Chapter 3 2 15 Chapter 2 Hardware Installation MPI 4 8 Hardware Installation for the MGC 100 2 16 The MPI 4 8 Multi Protocol Interface Network Interface card is inserted into the MGC 100 unit The MPI box may be mounted on top of the MGC 100 using mounting brackets or on a separate 19 or 23 rack as can be seen in Figure 2 8 When installed on a 19 rack the MPI box can be mounted directly on the rack When installed on a 23 rack a mounting plate must be used If the MGC 100 is rack mounted there must be at least 6 free space above the MGC 100 to be able to install the MPI Box on top of the MGC unit MPI Box in 19 Rack Mounting Plate Figure 2 1
52. TION Shield Common Signal Rate Indicator DCE KG Resync A Send Data A DTE Send Timing A DCE Receive Data A DCE Request to Send A DTE Receive Timing A DCE Clear to Send A DCE Local Loopback DTE Data Mode A DCE Terminal Ready A DTE Receiver Ready A DCE Remote Loopback DTE Incoming Call DCE Select Frequency DTE Terminal Timing A DTE Test Mode DCE Signal Ground Common SOURCE Common DCE DCE DCE DCE DCE DCE DCE SOURCE MGC Hardware and Installation Manual SIGNAL PIN PIN SIGNAL DESIGNATION NO NO DESIGNATION Signal Ground B A Chassis Ground Clear to Send D C Request to Send Data Carrier Detect F E Data Set Ready Ring Indicator J H Data Terminal Ready Unassigned L K Unassigned Unassigned N M Unassigned Receive Data A R P Transmitted Data A Receive Data B T S Transmitted Data B Receive Timing A V U Terminal Timing A Receive Timing B X W Terminal Timing B Unassigned Z Y Transmit Timing A Unassigned BB AA Transmit Timing B Unassigned DD CC Unassigned Unassigned FF EE Unassigned Unassigned JJ HH Unassigned Unassigned LL KK Unassigned Unassigned NN MM Unassigned Figure A 6 V 35 Pin out M 34 Connector SIGNAL PIN PIN SIGNAL DESIGNATION NO NO DESIGNATION Figure A 7 RS 366 Pin out DB 25 ET 1 Shield pa 2 Digit Present Digit Signal Circuits 3 Abandon Call and Retry 16 9 4 Call Request 5 Present Next Digit Receive Com
53. TM 155 network interface card is installed first remove the rubber plug covering the jack Then connect the fiber optics cable connector to the jack on the rear panel of the MGC Figure 2 16 ATM 155 network connection The ATM network properties must be defined in the Network Services for details see the MGC Administrator s Guide Chapter 3 MGC Hardware and Installation Manual Connecting the MGC 50 to the IP Network If an IP network Interface card is installed in the MGC connect the 8 pin RJ 45 connector of the LAN network cable to the LAN 323 RJ 45 jack on the rear panel of the MGC Figure 2 17 LAN IP network connection The IP network properties must be defined in the IP Network Service For details see MGC Administrator s Guide Chapter 3 2 31 Chapter 2 Hardware Installation MPI 8 Hardware Installation for the MGC 50 The MPI 8 Network Interface card is inserted into the MGC 50 The MPI box is mounted on a 19 rack together with the MGC 50 as can be seen in Figure 2 15 The MPI box is mounted directly on the rack above the MGC 50 leaving at least 6 free space above the MGC 50 For details on how to mount the MGC 50 refer to the section Mounting the MGC 50 on a Rack on page 2 23 MPI Box in 19 Rack MPI Box Hij Mounting Plate Figure 2 18 MPI Box mounting option 2 32 MGC Hardware and Installation Manual To
54. Transcoding The module supports the ITU T H 261 and H 263 standards Video Codec for Audiovisual Services at Px64 Kbps The Video Module supports multiple sites When using the Continuous Presence mode of operation the Video Module combines multiple video sources to build a video layout image Depending on the number of conference participants and the quality of the screen the MGC supports video layout configurations of 2 4 9 1 5 and others The Video Module performs Transcoding between different compressed video bit rates to support multiple bit rates on the same conference The module performs Transcoding from QCIF to CIF resolution to support multiple resolution rates in the same conference Video Module Architecture Figure 4 29 shows the architecture for the Video Module Video Hardware Card Manager Memory Figure 4 31 Video Module 4 59 Chapter 4 Hardware Description The maximum transmission capability of E1 lines up to 1920 Kbps can be used in Transcoding or Continuous Presence conferences To enable the high line rate transmission a newer video card version version 1 43 and up must be installed Figure 4 12 describes the various video card versions and their support of 30 frames per second and high bit rate Table 4 5 Video card 30 FPS and high bit rate support Video Card Version 30 FPS Support High Bit Rate Support 1 20 1 21 1 22 1 2
55. UX and MUX Modules Audio Audio Modules Video Video Modules Data Modules T O Cards Power Supply Module Fans Warning All maintenance tasks are to be performed by qualified authorized personnel Use only replacement parts supplied by your dealer Follow all procedures Do not skip any steps Unless specified differently the procedures described here are the same for both the MGC 100 and the MGC 50 Before replacing parts To ensure a part needs replacing complete the troubleshooting procedures Identify exactly which part needs replacing Make sure you have the correct replacement part on hand Make sure you are using proper ESD equipment to prevent damage to the system 5 9 Chapter 5 System Maintenance Replacing a Functional Module The following procedure is applicable for both the MGC 100 and the MGC 50 All Functional Modules are hot swappable and can be replaced with the system running Use the following procedure to replace a faulty Functional Module 1 Unscrew the screws on the front panel of the MGC that secure the Functional Module 2 Use the plastic ejectors to pull the Functional Module out of its slot in the Backplane Carefully slide the Functional Module out through the front panel 4 Slide in the replacement Functional Module Push the Functional Module firmly into the Backplane making sure it is properly seated in its slot 6 Tighten the screws on the front panel of the MGC that
56. X Cards Port Capacity Continued Participant Line Number of non Number of Card type Rate p encrypted ports encrypted ports capacity capacity O e e e ee e e pela e MUX Participant Move Options The administrator has the option to define move behavior of encrypted participants by setting the system cfg flag ALLOW_ENCRYPT_IN _PARTY_LEVEL YES NO When set to YES participants can move e From an encrypted conference to a non encrypted conference or another encrypted conference e From a non encrypted conference to an encrypted conference or another non encrypted conference When the ALLOW_ENCYPT_IN_PARTY_LEVEL flag is set to NO the participant s encryption setting must match the conference encryption setting s to be moved to the other conference For example encrypted participants can only move from an encrypted conference to another encrypted enabled conference 4 51 Chapter 4 Hardware Description 4 52 MUX Resource Report MGC 50 100 Resource Report The Resources Report displays the total number of MUX port resources available according to the card type line rate and encryption x Details Subject Total Bad Active Non Reserved Reserved a Audio 8 Medium Band Audio A 0 0 Audio 0 0 oo Audio 15 Audio A 0 0 Audio 24 0 oo Video 8 Video Processors 0 0 8 0 MUX non enciypted 128 Ports 256 Ports 384 Ports 512 Ports 768 Ports T1 Ports E1 Ports encrypte
57. ain Control Module Functional Modules and Power Supply Modules indicate the status of the system Main Functional Modules Control Module Ejectors Floppy Disk Drive COM Port Power Supply Module Cover Figure 4 3 MGC 100 NEBS standard front panel 4 4 MGC Hardware and Installation Manual Figure 4 4 shows the rear panel of the MGC 100 NEBS Standard The rear panel as in the standard MGC 100 provides access to the network I O card connectors and fans I O cards are inserted via the rear panel Slot A i Main Control Module Cover RS232 Connectors Network Connectors o Oo o O lc Z 2 a IN A Es aes TT Rane Are End Power Switch Io A A n and Circuit Breaker J o oO ojo Terminal Blocks O O o Dl Dry Contacts Fan RJ45 Connector Figure 4 4 MGC 100 NEBS standard rear panel with external connectors 4 5 Chapter 4 Hardware Description Figure 4 5 shows the top view of the inside of the MGC 100 The Main Control Module Functional Modules and I O cards are all connected to the Backplane The Power Supply Modules located underneath the Main Control Module and the Functional Modules are connected to the Powerplane REAR Backplane VO cards Function
58. ar panel of the MGC 100 and MGC 50 contains a number of controls for using the MGC unit Figure 5 3 AND Figure 5 4 show the back panel and labels all elements of the MGC 50 100 Slot A Main Control RS232 Network Module Cover Connectors Connectors ALARMS Main Switch and Circuit Breaker Dry Contacts RJ45 Connector Fan Figure 5 3 MGC 100 rear panel controls The main power switch is used during installation and replacement of the main control unit only since all other MGC 100 components are hot swappable The switch includes an AC circuit breaker 5 7 Chapter 5 System Maintenance Slot A Main Control Module Cover IO Card o v o T s o ole J Fuse O O Main Switch AC Inlet RJ45 Fan Connector Figure 5 4 MGC 50 rear panel controls The main power switch is used during installation and replacement of fans main control module and power supply since the functional modules are hot swappable The switch includes an AC fuse MGC Hardware and Installation Manual Corrective Maintenance Corrective maintenance refers to changing or replacing an element of the system that is faulty The MGC has several components in which problems may occur Main Control Module Functional Modules Network Interface Modules ISDN T1 CAS ATM IP and MPI and or Serial M
59. asy module removal and prevent accidental disconnection All Functional Modules are front removable and hot swappable allowing servicing functions to be performed while the system is in operation The operator accesses the MGC unit from an operator work station which is connected to the MGC unit via an Ethernet interface or an RS 232 interface as shown in Figure 3 1 MGC interfaces LAN WAN RS 232 LL om Operator Workstation l MGC 100 Figure 3 1 MGC interfaces Figure 3 2 MGC 100 Components on page 3 2 and Figure 3 3 MGC 50 components on page 3 3 show the internal layout of the MGC 100 and the MGC 50 respectively All of the MGC modules and cards connect to the backplane 3 1 Chapter 3 System Architecture 3 2 The MGC Unit is made up of e Main Control Module located at the top left of the unit when viewed from the front e Functional Modules located to the right of the Main Control Module when the unit is viewed from the front e Power Supply Module located underneath the Main Control Module and Functional Modules e Input Output cards located behind the backplane opposite the Functional Modules The various modules communicate with each other via the Backplane The Control Bus and Information Highway are implemented on the Backplane Figure 3 2 describes the functional block diagram of the MGC 100 components Backplane Power Supply Module Figure 3 2
60. c Take the two mounting bars Item 1 from the kit and attach them to the MGC 100 unit with the screws with the attached washers as described in step b 2 7 Chapter 2 Hardware Installation 5 Carefully rotate the MGC 100 counterclockwise 90 making sure the Control Unit is at the bottom left 6 While supporting the MGC 100 place it on the 19 rack and screw the brackets to the rack securing it with the screws and nuts supplied with the rack NEBS Standard 2 8 For installations based within the United States an MGC 100 DC NEBS compliant system is available The NEBS compliant systems differs in its construction of the frame and the power supply All else remains the same The construction of the MGC 100 is 12 U s 1 U 4 3 cm which makes it higher by 3 U s than the original frame of the MGC 100 This design allows for a cushion of air to be present ensuring safety in case of a heat related problem In addition the power supply is also designed differently by allowing the circulation of cool air providing a safety tolerance in case of a heat related problems Use only shielded LAN cables where the shield is grounded at both ends when connecting to the IO LAN port of the IP 48 on the MGC rear panel RATE AAT O o ss F E EE o slo e e e ell oo a ooo a alfa Figure 2 4
61. d 128 Ports 256 Ports 384 Ports 512 Ports 768 Ports T1 Ports E1 Ports 0000000 c000000 0000000 c000000 0000000 0000000 Port Unit Alloc Method Fiter Circular x Close In the example shown here the system lists the total number of ports available with the MUX 20 card for both non encrypted and encrypted participants based on their connection line rates At a line rate of 128 Kbps up to 36 non encrypted and 18 encrypted participants can connect to conferences At a line rate of 384 Kbps 20 non encrypted and 10 encrypted participants can connect to conferences running on the MCU IP SIP In the IP SIP section of the Resources Report both non encrypted and encrypted participants are grouped together For example if one encrypted and one non encrypted participants using a line rate of 128 Kbps attend a conference the resource report displays the sum of the used resources of both participants together In this case the non encrypted participant is allocated 1 port and the encrypted participant 2 ports totalling 3 ports MGC Hardware and Installation Manual Audio Module Standard The Audio Module performs audio compression decompression and bridging The Audio Module also performs transcoding between various audio algorithms The Audio Module supports the following algorithms e ITU T G 711 48 56 and 64 Kbps e ITU T G722 48 56 and 64 Kbps e ITU T G728 16 Kbps Audio Module Port Capacity The Audio
62. d Drive 1 Make sure the MCU is OFF and insert the Hard Drive into its slot Check that the Hard Drive is firmly locked into place Turn the key counter clockwise to lock the Hard Drive Turn ON the MCU The LED activates on the Hard Drive s panel after MCU startup In normal mode the Hard Drive 7 segment LED is set to 0 When the LED does not display 0 contact support 7 segment LED Removable disk Hard Drive Key Figure 4 10 Removable Hard Drive Front Panel View Removing the Hard Drive 1 2 Make sure the MCU is OFF Insert the key into the Key Lock and turn the key clockwise to unlock the Hard Drive Firmly push the Eject button The Hard Drive is released from the drive s housing 4 15 Chapter 4 Hardware Description 4 16 4 You can now remove the Hard Drive by sliding it out from its housing Hard Drive Limitations The XPEK or pSOS change function requires changing pre configured Hard Drives IP Change can only be implemented as described in the procedure IP Configuration Change on XPEK and pSOS OS on page 2 35 Disk Rescue cannot be performed on a Control Unit with pSOS Operating System MGC Hardware and Installation Manual Backplane The Backplane is based on the universal slot concept where any card can be inserted in any slot Therefore different configurations are formed based on the users port capacity and functionality requirements The Backplane sup
63. d to playback music or recorded messages from an external device such as a tape recorder or CD player Only one music card per MCU may be installed MUX the video slides are downloaded and stored in the MUX memory Up to four slides may be stored in the MUX memory one per Message Service To run Greet and Guide conferences all MUX modules must be of the proper hardware version If required replace the existing MUX module by the new version MUX module For details regarding the replacement of a functional module refer to Chapter 5 of the MGC Unit Hardware amp Installation Manual 4 67 Chapter 4 Hardware Description Installing the Audio Message Daughter Card on the standard Audio Module 1 Unscrew the screws on the front panel of the MGC unit that secure the Functional Module 2 Unlatch the top and bottom latches by pressing up and away the top latch and down and away the bottom latch Bottom latch 3 Use the plastic latches to pull the Functional Module out of its slot in the Backplane 4 Carefully slide the Audio Module out through the front panel Press firmly the male connector on the Audio Message daughter card into the slots of the female connector on the Audio functional module while lining up holes A and B ul Audio Card i Message Extension 4 68 MGC Hardware and Installation Manual Audio Card Message Card Male Connector Female Connector Line Up
64. dard Phillips screwdriver remove six spring loaded screws from the fans cover on the MCU s rear panel MGC Hardware and Installation Manual 4 Optional Remove the two jack connectors from the fan panel to completely remove the fans from the MCU 5 Disconnect the AC input J1 and the 12V 5V Sense connectors J2 6 Disconnect the 5V and 5V power cables using a 9 16 13 mm M8 nut driver and 5V screws on the faulty unit to be shipped to the manufacturer These Tighten the two flat washers the spring washer and the nut back to their 5V fs items are delivered with the new power supply module 7 Using a Phillips screwdriver loosen the six spring loaded screws on the front panel of the MGC 50 that secure the Power Supply Module Chapter 5 System Maintenance 5 14 10 11 From the rear carefully slide the Power Supply Module out through the front panel and remove 5 gooit n 0000 ini Po Tonon k i000 i Slide in the replacement Power Supply Module from the front panel and push it firmly into its place Tighten the six screws on the front panel of the MGC 50 that secure the Power Supply Module Connect the red power cable to the 5V screw and ensure that the nut is well fastened and secured First install the flat washer Next install the terminal ring of the power cable Next install the second flat washer Then install the spring washe
65. dicators 0 0 0 0 eee eee eee 5 2 MGC Unit Front Panel LL 5 2 LED Indicators sic cia eed etek baa ek eee does 5 3 MGC Unit Rear Panel LL 5 7 Corrective Maintenance 0 0 0 eee eee eee eee 5 9 Replacing a Functional Module 5 10 Replacing the I O Cards LL 5 10 Replacing the Fuse 0 0 0 cece eee eee 5 11 Replacing the Power Supply Modules for the MGC 100 including the NEBS Unit 5 11 Replacing the Power Supply Module for the MGC 50 5 12 Fan Replacement for the MGC 100 5 15 Fan Replacement for the MGC 50 000 5 16 Replacing the Main Control Module 5 17 Troubleshooting 0 0 0 cece eee eee eee 5 19 Appendix A Interfaces Pin Assignment A 1 PRI Port Assignment LL A 1 LAN PIN Assignment 0 002 cece eee eee A 2 Alarms Port Pin Assignment LL A 2 RS 232 Pin Assignment 0 0 0 0000000088 A 3 Serial Port Connectors Pin out Assignment A 4 MGC Hardware and Installation Guide Cables For the MPI 8 Network Interface Module A 6 Table of Contents vi Before You Begin The MGC 50 and the MGC 100 are high performance high capacity Multipoint Control Units MCU which support up to 48 ports for the MGC 50 and 96 ports for the MGC 100 They utilize a variable port bandwidth ranging from 56 to 1920 Kbps Figure
66. different functions in one board This interface module is primarily an IP network card using H 323 standards for video conferencing with an added MUX capability that uses H 320 standards The IP module design includes an Ethernet network interface and a heavy processing core to handle data An MCU with IP only configuration requires the IP Network interface module and Audio Video Data cards for conferencing In that case the IP module performs the MUX functionality A more powerful MCU configuration combines the two network interface cards to form a gateway In this configuration an IP endpoint can participate in the same conference as an H 320 endpoint The IP and IP modules also contain an embedded software module that interfaces between the MCU and the external Gatekeeper The different types of IP cards include standard IP and MG323 cards and IP cards The standard IP cards are available in MG323 IP12 IP24 and IP48 port sub assemblies 4 35 Chapter 4 Hardware Description 4 36 gy The IP cards are available in IP 12 IP 24 and IP 48 port sub assemblies The following table lists the type of IP card its version number its compatibility with SIP VoIP and Encrypted conferences and its capacity Table 4 1 IP Card Types IP Card HW Version SIP Number VOIP Encryption Name Support of Units Call Capacity The IP cards with 8 MB memory and 12 port capacity are available from Hardware version 1 24 1 41 and highe
67. e used to connect ISDN lines or T1 CAS lines However you cannot connect ISDN lines and T1 CAS lines to the same network card The Net 2 Net 4 Net 8 card connects to the IO 2 IO 4 and IO 8 cards respectively The IO 8 card contains connections of up to eight PRI spans of either an E1 or T1 line and it can work with both types simultaneously When the Net 2 Net 4 Net 8 card is used for T1 CAS lines only T1 spans are connected to the IO card Different types of ISDN and T1 CAS Network Interface Modules can be installed For more details see MGC Functional Modules Description on page 4 23 The module s front panel includes two four or eight tri color LEDs depending on the card s configuration Depending on the states of the LEDs inputs the LED can be off green red or yellow The red and yellow states indicate alarms 4 31 Chapter 4 Hardware Description TDM Interface gt 4 TO la _FRAMER E PHYI F Front Panel LEDs Card COM Manager gt DPR e Processor le Watch Dog s HDLC Interface Figure 4 16 Net 2 Net 4 Net 8 ISDN T1 CAS and Net 8L ISDN Network Interface Module 4 32 MGC Hardware and Installation Manual The Net 2 Net 4 Net 8 ISDN T1 CAS Network Interface Data Stream Figure 4 16 shows a block diagram of the Net 2 Net 4 Net 8
68. edium data rates of up to 768 Kbps e Upto 4 ports at high data rates of up to 1536 1920 Kbps For operating each terminal at its maximum data rate capacity the MUX Module supports mixed rate ports For example some ports in a given module can operate at 128 Kbps while simultaneously other ports can operate at 768 Kbps The MUX module is used in the Greet and Guide mode to store the video slide which is displayed to the participants waiting in the Welcome or On Hold queues 4 45 Chapter 4 Hardware Description MUX Module Architecture Figure 4 25 shows the card architecture of the MUX Module MUX Processor Card Manager HDLC Interface Figure 4 26 MUX Module 4 46 MUX Module MGC Hardware and Installation Manual The MUX card performs multiplexing and demultiplexing of audio video data and control information The MUX card has the same general card architecture as the MUX card and it includes the same number of processors The MUX card capabilities include e Higher capacity e Flexible port allocation e Supports conference encryption LS Encryption requires the MUX card TDM Interface System controller MUX Processor Front Panel auogyoeg Od 10 100 LAN Controller LEDs ER HDLC Interface Memory
69. erface Module Architecture 4 44 MUX Module tot tet eaaa a Gu uni ei 4 44 MUX Module Architecture 4 46 MUX Module 0 cece eens 4 47 MUX Card Properties 002 000 2002 eee 4 48 IVR Greet amp Guide Welcome Slide 4 49 MUX Port Capacity 4 49 MUX Participant Move Options 4 51 MUX Resource Report 00 00000 4 52 Audio Module Standard 0 0 0 0 cee eee eee 4 53 Audio Module Port Capacity 0 004 4 53 Audio Module Architecture 4 55 Audio Module 000s 4 56 Audio Module Architecture 4 57 Audio Port Capacities 0 0 0 0 eee eee 4 57 Video Module Standard 0 0 0 0 eee eee eee 4 59 Table of Contents Video Module Architecture 4 59 Video Module L a 4 60 Video Module Architecture 4 61 Data Module civile Debate 4 62 Data Module Architecture rennuna 4 62 Input Output Cards 4 63 Greet and Guide Hardware Kit 4 67 Installing the Audio Message Daughter Card on the standard Audio Module rae 4 68 Attaching the Music I O Card to the Audio Module 4 69 Enabling the Audio Message Daughter Card and Music I O Card in the MCU Software 4 70 System Maintenance 0000 5 1 Controls and In
70. fuse into the fuse holder Use a fuse that meets the specifications as defined in see Chapter 4 Fuse Circuit Breaker AC Power on page 4 22 7 Slide the fuse holder into the MGC unit and push it in firmly to engage its latch Connect the power cord 9 Switch on the power Replacing the Power Supply Modules for the MGC 100 including the NEBS Unit The Power Supply Modules are hot swappable and can be replaced with the system running Use the following procedure to replace a faulty Power Supply Module 1 Unscrew the 4 screws on the front panel of the MGC 100 that secure the Power Supply Module 5 11 Chapter 5 System Maintenance Pull on the handle of the Power Supply Module to pull the module out of its slot in the Powerplane Carefully slide the Power Supply Module out through the front panel Slide in the replacement Power Supply Module Push the Power Supply Module firmly into the Powerplane making sure it is properly seated in its slot Tighten the 4 screws on the front panel of the MGC 100 that secure the Power Supply Module Replacing the Power Supply Module for the MGC 50 5 12 The Power Supply Module is not hot swappable and cannot be replaced with the system running Use the following procedure to replace a faulty Power Supply Module 1 If the MCU is working exit the MGC Manager application and turn off the MCU Otherwise skip this step Unplug the MCU from the AC outlet Using a stan
71. icators e Maintenance procedures e Troubleshooting procedures 5 1 Chapter 5 System Maintenance Controls and Indicators MGC Unit Front Panel The front panel of the MGC unit contains a number of controls components and indicators for using the MGC system Figure 5 1 and Figure 5 2 show the front panel of the MGC 50 and MGC 100 and all their elements Main Functional Modules Control Module Floppy Disk Drive Power Supply Module Handle COM Port Figure 5 1 MGC 100 front panel 5 2 MGC Hardware and Installation Manual Main Functional Modules Control Module LEDs Ejectors POLYCOM MGC 50 Floppy Disk Drive COM Port Figure 5 2 MGC 50 front panel LED Indicators The following LEDs appear on the front panel 8 LEDs on the Main Control Module 3 LEDs on each Functional Module except for the Network Interface Module which contains additional LED for each PRI span connected to the system 2 LEDs for each of the MGC 100 Power Supply modules 1 LED on the MGC 50 Power Supply 5 3 Chapter 5 System Maintenance e 7LEDson Net El Net T1 ISDN Network Interface Module Net 4 ISDN Network Interface Module ATM Network Interface Module and H 323 Network Interface Module e 5 LEDs on NET 2 ISDN Network Interface Module e 11 LEDs on NET 8 ISDN Network Interface Module The system uses these LEDs to indicate operating states The LEDs on the Net 2 Net 4 Net 8 are tri colo
72. iplexes and 72 channels at demultiplexes audio data 128Kbps video and control information performs channel aggregation enables Encryption Data Module Performs data routing and T 120 standard card conference control 12 ports T 120 24 card 24 ports The different types of Functional Modules are used to produce a variety of configurations In the MGC 50 up to eight individual Functional Modules can be used to build the desired configuration In the MGC 100 16 modules can be used Figure 4 12 shows the general design of the Functional Modules The components that are common to all Functional Modules are shown in detail in the figure and are described in Table 4 5 on page 4 27 MGC Hardware and Installation Manual Xxx Module TDM Interface Module Xxx Specific Hardware Figure 4 13 General module architecture Table 4 5 Common functional module components Card Manager The Card Manager processor HDLC Interface Provides the interface for the Control bus Watch Dog Represents the Watch Dog power control and reset switch Memory Represents the RAM for processor general use and the flash for the card CPU s software and module specific information such as serial number The Functional Modules are described in detail in the following segments 4 27 Chapter 4 Hardware Description Net E1 Net T1 ISDN Network Interface Module The Net E1 Net T1 ISDN Network Interface module provides the interface between the M
73. k via the Network Interface module and the Input Output card This information is then transferred to the Network Interface module via the Information Highway The information is then ready for transmission MGC Hardware and Installation Manual MGC Manager Interface As shown in Figure 3 4 MGC unit functional block diagram on page 3 4 the Main Control Unit communicates with the MGC Manager through the LAN interface or the RS 232 interface Power Supply Flow For the MGC 100 the AC power inlet is connected by a switch through a 15 Amp circuit breaker and then filtered to the AC power supply module The DC power outlet delivers 5V 12V and 12V through the power bus in the Backplane to the functional units and the Main Control Module The 12V is also delivered to the fans For the MGC 50 the AC power inlet is connected through a 12 5 amp 250 volt fuse and then filtered to the AC power supply module 3 9 Chapter 3 System Architecture 4 Hardware Description This chapter describes the various components that make up the MGC unit The following components are described Backplane Main Control Module Power Supply Module Fans Functional Modules ISDN Net T1 Net E1 ISDN T1 CAS Net 2 4 8 ATM 25 155 MG323 IP24 IP48 IP 12 IP 24 IP 48 MPI 4 8 MUX MUX Standard Audio Audio 8A V Audio 12 24 Audio 24 48 Audio 48 96 Standard Video Video Data Input Output cards Greet amp Guide hardware kit
74. ke sure that the MCU is turned OFF and it is disconnected from the AC or DC power Place the MCU in a 23 rack and support it screw the mounting brackets to the rack securing it with bolts and self locking nuts which the client provides Or If the MGC 100 was shipped without the two mounting plates that are usually pre installed Make sure that the MCU power is turned OFF and that it is disconnected from the AC or DC power With a slotted screwdriver remove the five nylon plug hole covers from the MCU side covers With an Allen wrench M4 remove the five screws from the MCU side covers Remove both MCU side covers remove screws Remove the plates from the both sides of the MGC by removing the appropriate number of functional modules to allow access to the screws MGC Hardware and Installation Manual 6 Unscrew both MCU the side screws and remove both side plates front o Remove plate 7 From the inside of the MGC 100 screw the mounting brackets to both sides of the MCU securing the screws in the mounted nuts Screw mounting plate from the inside of the MGC Front Secure with nut Chapter 2 Hardware Installation Q 8 Place the MCU in a 23 rack and while supporting it screw the mounting brackets to the rack securing it with bolts and self locking nuts When the unit is installed on a rack the rack must be properly grounded to the central office ground The rack must
75. le for printing or clerical errors Information in this document is subject to change without notice MGC Hardware and Installation Guide Table of Contents Before You Beg lt 0022i vivete 1 1 MGC Unit Main Features 1 3 MGC 50 MGC 100 Specifications 0 0 00 00008 1 4 Scope of Manual seisseen api E ee eee 1 8 CONVENTIONS iii tials ecw ad RN e ea sa ia a 1 9 List of Abbreviations 00 0 0 cece eee eee 1 10 Installation and Configuration Workflow 04 1 11 Hardware Installation 2 02 ii 2 1 MGC 100 Hardware Installation 2 2 Unpacking and Positioning the MGC 100 2 2 Mounting the MGC 100 on a 23 Rack 2 4 Mounting the MGC 100 on a 19 Rack 2 6 NEBS Standard 0 0 0 LL 2 8 Connecting and Setting Up the MGC 100 2 9 MGC 100 Dongle 0 0 0 eee eee 2 10 Connecting to the power source 2 10 Connecting the MGC 100 to the LAN Network 2 12 Connecting the MGC 100 to the Operator Workstation PC Directly via RS 232 Optional 2 20055 2 12 Connecting the MGC 100 to the Network 2 13 MPI 4 8 Hardware Installation for the MGC 100 2 16 To install the MPI 4 8 Network Interface Module 2 17 To install the MPI Box on Top of the MCU 2 17 MGC 50 Hardware Installation 2 21 Unpacking and Positioning the MGC 50 2 21 Mounting
76. modules FRONT Figure 4 5 MGC 100 top internal view 4 6 MGC Hardware and Installation Manual MGC 50 Components Location Figure 4 6 shows the front panel of the MGC 50 The front panel provides access to the Main Control Module the Functional Modules and the Power Supply Module Status LEDs on the Main Control Module Functional Modules and Power Supply Module indicate the status of the system Main Functional Modules Control Module LEDs Ejectors POLYCOM MGC 50 Floppy Disk Drive COM Port Figure 4 6 MGC 50 front panel 4 7 Chapter 4 Hardware Description Figure 4 7 shows the rear panel of the MGC 50 I O cards are inserted via the rear panel The rear panel also provides access to the fans power supply module network connections additional communications ports the main power switch AC inlet and fuse Slot A Main Control Module Cover IO Card O ele Fuse O O D_O D Main Switch AC Inlet RJ45 Fan Connector Figure 4 7 MGC 50 rear panel with external connector MGC Hardware and Installation Manual Figure 4 8 shows the top view of the inside of the MGC 50 The Main Control Module Functional Modules and I O cards are all connected to the Backplane The Power Supply Module is located underneath the Main Control Module and the Functional Modules and is connected by wire leading to the backplane REAR Backplane I O
77. mon 18 as i 6 Power Indication Seng Commen on 7 Signal Ground Unassigned 8 Unassigned Unassigned 21 g Reserved for automatic calling equipment Data Line Occupied 22 testing These 2 pins shall not be 10 wired in the data terminal equipment Unassigned 23 su da 11 Unassigned Unassigne ap 12 Unassigned Unassigned 13 Distant Station Connected SOURCE Common DTE DCE DTE DTE DTE DTE DTE DCE DCE SOURCE DSC Appendix A Interfaces Pin Assignment A 6 Cables For the MPI 8 Network Interface Module There are three new cables for interfacing with the MPI 8 Network Interface Module in DCE The difference in the cables is that they have certain pins that are crossed 1 Part Number CON2044A Adapter RS 449 BD37 to V 35 female crossed DCE 2 Part Number CON 2045A Adapter RS 449 EIA530 Crossed DCE DB37M DB37F 3 Part Number CON2046A Adapter RS 449 RS 449 Crossed DCE DB37M DB37F
78. nd no configuration is required The Card Settings dialog box definitions Common Parameters and MUX Plus Parameters properties are identical to the MUX card properties For more information see the MGC Administrator s Guide Chapter 4 Viewing the MUX Module Specific Properties MGC Hardware and Installation Manual IVR Greet amp Guide Welcome Slide Up to four video slides can be stored on the MUX card in the same way that they are stored on the MUX card In a mixed system with MUX and MUX cards the Welcome slide is downloaded to all MUX MUX cards MUX Port Capacity MUX resources are allocated at the reservation stage MUX resources are calculated according to the relative weight assigned to the different line rates Using the dynamic allocation mechanism the MUX eliminates fragmentation and enables better utilization of resources For example a participant connecting at a line rate of E1 requires 10 times more resources than a participant connecting at a line rate of 128 Kbps Encrypted participants always require MUX resources and use more resources than a regular participant as shown in Table 4 2 MUX Cards Port Capacity In a system with only MUX cards both encrypted and non encrypted participants resources are allocated and calculated according to the relative weight assigned to the different line rates during a reservation For example a MUX 40 card can host 72 non encrypted or 48 encrypted participants in
79. ntered in the LAN CFG file d Click OK The new MCU is added to the MCUs list 2 40 Clocking MGC Hardware and Installation Manual To be able to work with the network connected to the MCU you need to synchronize the system clock with the network clock This is done in two steps e Selecting the network type according to which the system clock will synchronize Only one system type may be selected for clocking The clock source is then defined in the system cfg e Selecting the spans of the selected network that will act as Master and Backup clocks The Master and the Backup clock must be set on spans of the same network type For more details regarding the clocking setup see the MGC Administrator s Guide Clocking in Chapter 5 You have completed the hardware installation The next step in the installation procedure is to install the MGC Manager software For more information refer to the MGC Administrator s Guide Chapter 2 2 41 Chapter 2 Hardware Installation 2 42 System Architecture The MGC unit is designed to provide maximum reliability minimum interruptions and effortless maintenance Removable active components are accessed via the front panel to provide quick and easy serviceability Redundant power supplies are easily accessed via the front panel ensuring a fail safe operation the MGC 50 is not redundant therefore not hot swappable Network connections on the back of the unit enable e
80. nternal clock 4 11 Chapter 4 Hardware Description MGC 50 100 Control Unit with Removable Hard Drive As an option the Control Unit CU can be supplied with a removable Hard Drive The Hard Drive is pre configured for either XPEK or pSOS Operating Systems This Control Unit does not include a floppy disk drive 4 12 amp 3 MGC Manager versions 6 11 and 7 0 2 also can support the removable Hard drive It is possible to configure several removable Hard drives for a single MCU Sharing Hard Drives between two different MCU s is not possible due to the different cards network services and reservations However if you need to move a drive to another MCU contact Polycom support The following sections describe the steps required to install the removable hard drive Removing the Control Unit from the MCU The Control Unit is not hot swappable Use the following procedure for both the MGC 100 and the MGC 50 to replace the Control Unit 1 2 Exit the MGC Manager application Switch OFF the main power switch on the rear panel and disconnect the power cord from the power source Remove the cover at the rear of the MCU Disconnect the following cables from the Control Unit e The LAN RJ 45 and Dongle RS 232 Serial cable connections From the front of MCU unscrew the four screws that secure the Control Unit to the chassis A modem may be connected to the RS 232 port on the front panel of the Control Unit
81. onference size determined only by overall system limitations e Improved latency Video Module Architecture Figure 4 30 shows the Video module architecture TDM interface TDM I F card t manager Video codec HDLC interface Figure 4 32 Video module architecture 4 61 Chapter 4 Hardware Description Data Module The Data Module performs conference data and control routing for up to 12 participants The system allows for 12 conferences of one participant each or one conference of 12 participants or any combination in between In T 120 conferences the data module does the Transcoding The module supports various ITU T T 120 standards for data transfer and application sharing in a multipoint conference The Data Module supports the following standards e ITU T T 122 T 125 MCS Multipoint Communications Service e ITU T T 123 Transport Protocol Stacks e ITU T T 124 GCC Generic Conference Control Data Module Architecture Figure 4 28 shows the Data Module s architecture Data Hardware Data Processor Card Manager Memory HDLC Interface Figure 4 33 Data Module 4 62 MGC Hardware and Installation Manual Input Output Cards Input Output I O Cards connect the Functional Modules to external systems and networks The I O Cards are housed behind the Backplane opposite the Functional Modules The I O Cards which are small and sim
82. ough 16 The MGC 50 unit houses up to eight Functional Modules which can occupy slots 1 through 8 The LED s on the front of each Functional Module indicate the status of operation and whether it is functioning properly Functional Modules are installed via the front panel of the MGC unit A connector at the rear of each function al module connects the module to the backplane Any module can be inserted into any slot All Functional Modules are front removable and hot swappable Table 4 4 lists the available Functional Modules Table 4 4 MGC Functional Modules Description Functional Module Module Function Portcapaciy Porteapaeity Net T1 Net E1 ISDN Co between the MGC 46 channels 60 Network Interface unit and the ISDN network channels Net 2 ISDN T1 CAS Interfaces between the MGC 46 channels 60 ISDN Network Interface unit and the ISDN network or channels or 48 T1 CAS T1 CAS lines channels Net 4 ISDN T1 CAS Interfaces between the MGC 92 channels 120 ISDN Network Interface unit and the ISDN network or channels or 96 T1 CAS T1 CAS lines channels Net 8 ISDN T1 CAS Interfaces between the MGC 184 channels 240 and Net 8L ISDN unit and the ISDN network or ISDN channels or 192 Network Interface T1 CAS lines T1 CAS channels ATM 25 Network Interfaces between the MGC 10 ports Interface unit and the ATM network ATM 155 Network Interfaces between the MGC Interface unit and the ATM network
83. ove the power supply see Chapter 5 Replacing the Power Supply Module for the MGC 50 on page 5 12 2 23 Chapter 2 Hardware Installation 6 Once the Main Control Module the power supply module and the boards are removed unscrew the side screws from inside the MGC 50 and then remove the plate from both MGC 50 sides Front ole Remove plate Rear 7 From the inside of the MGC 50 screw the mounting bracket to the side of the MGC 50 securing the screws in the mounted nuts Screw mounting plate from the inside of the MGC Front 2 24 MGC Hardware and Installation Manual 8 To remove the plate from the right side of the MGC unit remove the appropriate number of functional modules to allow access to the screws 9 From the inside of the MGC 50 screw the mounting bracket to the side of the MGC 50 securing the screws with the mounted nuts 10 Insert the functional modules removed earlier into the MGC 50 11 Mount the Power Supply module and Main Control Module back in their place as described in Chapter 5 Replacing the Main Control Module page 5 18 and Replacing the Power Supply Module page 5 12 12 Place the MGC 50 in a 19 rack and while supporting it screw the mounting brackets to the rack securing it with nuts MGC 50 in 19 Rack lounting Plate 2 25 Chapter 2 Hardware Installation Connecting and Setting Up the M
84. ower Fans Currently MGC 100 Control Units come equipped with a circuit breaker Previous models on the MGC 100 use one UL approved circuit breaker The specifications of the fuse are shown in Table 4 3 The MGC 50 uses one UL approved fuse Schurter Type no 0001 1015 The specifications of the fuse is also shown in Table 4 3 Table 4 3 Fuse specifications Previous MGC 100 MGC 50 Specifications Voltage V Control Units without circuit breakers Quick acting F Quick acting F Rating 10A 250V 12 5A 250V Three fans are mounted at the bottom of the rear panel on the MGC 100 Each fan has an alarm which is monitored by that Main Control Module The system generates an alert upon failure Two fans are mounted at the bottom of the rear panel on the MGC 50 Alarms Port 4 22 In the MGC 100 the main control module includes an Alarms port The dry contacts on the rear panel of the MGC 100 are for connecting to the customer s alarms system The Alarms port has the following specifications Voltage rating 60 V DC maximum Current rating 0 2 A maximum For the MGC 50 no Alarms ports are in use MGC Hardware and Installation Manual Functional Modules The Functional Modules cards perform the various audio video and data processing functions for the MGC unit Both the MGC 100 and the MGC 50 use the same functional modules The MGC 100 unit houses up to sixteen Functional Modules which can occupy slots 1 thr
85. ple are installed via the rear panel of the MGC A connector at the rear of each I O card connects the card to the Backplane 0 The following I O cards may be installed in the MCU e The NETIO card connects two PRI Leased connections from the MGC rear panel to a Net E1 Net T1 ISDN Network Interface Module e The IO 2 card connects two PRI Leased connections from the MGC rear panel to a Net 2 ISDN T1 CAS Network Interface Module Figure 4 34 ISDN T1 CAS Network connection for two spans 4 63 Chapter 4 Hardware Description The IO 4 card connects four PRI Leased connections from the MGC rear panel to a Net 4 ISDN T1 CAS Network Interface Module wn Xo UNNA S e S Figure 4 35 ISDN T1 CAS Network connection for four spans e The IO 8 card connects eight PRI Leased connections from the MGC rear panel to a Net 8 ISDN T1 CAS Network Interface Module Figure 4 36 ISDN T1 CAS Network connection for eight spans 4 64 MGC Hardware and Installation Manual e TheIO 25 Card connects one ATM connection from the MGC rear panel to an ATM 25 Network Interface Module Figure 4 37 One 25MB ATM Network connection e The IO 155 Card connects one ATM connection from the MGC rear panel to an ATM 155 Network Interface Module Figure 4 38 One 155 MB fiber optics ATM Network connection 4 65 Chapter 4 Hardware Description e The LAN IO Card connects one H 323 connection from the MGC rear panel
86. ports hot swapping of Function Modules and I O cards In the MGC 100 the front of the Backplane contains 16 slots for Functional Modules and an additional slot Slot A for the Main Control Module The back of the Backplane contains 17 slots for I O cards 16 slots for I O and one dummy slot The Network Interface Modules connected via the Backplane to I O cards which connects the system to the network The Power Supply Module provides power to the Backplane via a power bus Backplane Power Supply Module Figure 4 11 MGC 100 Backplane 4 17 Chapter 4 Hardware Description Control Bus 4 18 In the MGC 50 the front of the Backplane contains eight slots for Functional Modules and an additional slot Slot A for the Main Control Module The back of the Backplane also contains eight slots for I O cards and one dummy slot The Network Interface Module is connected via the Backplane to I O cards which connect the system to the network The Power Supply Module provides power to the Backplane via a power bus Backplane MPI Serial Network I F Figure 4 12 MGC 50 Backplane The MGC 100 and the MGC 50 use the same Control Bus The Control Bus connects the Main Control Module to the Functional Modules The Control Bus is an HDLC bus A double bus is implemented for redundancy MGC Hardware and Installation Manual Information Highway The Information Highway is a high capacity TDM type bus It is used by both
87. r Last screw the nut 12 13 14 15 MGC Hardware and Installation Manual Connect the black power cable to the 5V screw in the order described in step 11 and ensure that the nut is well fastened and secured Reconnect the AC input J1 and the 12V 5V Sense connectors J2 Reposition the fans cover panel on the rear panel Ensure that the two fan connectors are in their place and tighten the six screws to secure the fan cover to its place Connect the AC power cable to the MCU and turn on the MCU The green Power Supply Module LED should be green to indicate that the MCU power is on Fan Replacement for the MGC 100 The fans are hot swappable and can be replaced with the system running The fans are located on the rear panel of the MGC 100 Use the following procedure to replace a faulty fan 1 2 Disconnect the cable to the fan Unscrew the four screws on the rear panel of the MGC 100 that secure the fan Remove the fan Position the replacement fan correctly on the rear panel Tighten the four screws on the rear panel of the MGC 100 that secure the fan Connect the cable to the fan 5 15 Chapter 5 System Maintenance Fan Replacement for the MGC 50 5 16 The fans are not hot swappable and cannot be replaced with the system running Fans are located on the rear pane of the MGC 50 Use the following procedure to replace a faulty fan 1 2 Exit the MGC Manager application turn off
88. r The IP cards with 16 MB memory and 24 port capacity are available with Hardware version 2 21 and higher IP cards are available with version 4 23 and higher Conferences that include SIP defined participants require IP cards from version Module Port Capacity The number of participants in a conference is limited by the Line Rates and conference type Table 4 2 describes the port capacities of the cards using different line rates Participants connecting through an IP48 card using a line rate of T 120 can participate in Software Continuous Presence conferences MGC Hardware and Installation Manual Table 4 2 IP Participant Types and Line Rate Capacities Participant CAI Type 128 384 768 EUTI Kbps Kbps Kbps i Video participant ma participant a SE T Ts a ee Video participant RE 120 participant SLI as participant Pas Standard Video participant 120 participant iI hi a 2 participant 4 37 Chapter 4 Hardware Description IP and IP Network Interface Module Architecture The IP and IP Network Interface Modules have the same general card structure as other MGC modules Card Manager TDM interface and the functional units Figure 4 18 shows the architecture for the IP and IP Network Interface Modules TDM Interface enon H Sten controller FP System UART FLASH Stack Controller LEDs
89. r Depending on the states of the LEDs inputs the LED can be off green red or yellow The LEDs on the front panel are described in Table 5 1 Table 5 1 Front Panel LEDs COS ame em oo Main Control CRITICAL A critical fault is detected on the Module top MGC unit group MAJOR A major fault exists on the MGC unit MINOR A minor fault exists on the MGC unit Reserved Main Control Power Supply is operating Module bottom normally group Only one ISDN T1 CAS Network card is installed in the MCU and it is configured as the Primary clock source The LED is turned off when no ISDN Network card is installed A second ISDN T1 CAS Network module is installed and configured as the backup clock Yellow LED is active when the MCU is orange restarted 5 4 MGC Hardware and Installation Manual Table 5 1 Front Panel LEDs ite Tre Ter Tee Functional Modules Net E1 Net T1 ISDN ATM and H 323 Network Interface Module additional LEDs Net 2 Network Interface Module additional LEDs Net 4 Network Interface Module additional LEDs Net 8 Network Interface Module additional LEDs Power Supply Module STBY Green FAIL Red ACTIVE Yellow Yellow Red Yellow Red LINE 1 LINE 2 Off Green Yellow Red Off Green LINE 1 LINE 2 LINE 3 LINE 4 Yellow Red LINE 1 LINE 2 LINE 3 LINE 4 LINE 5 LINE 6 LINE 7 LINE 8 On during normal operation refer to Table
90. riate functional module The information arriving at the MUX ports is multiplexed into Nx56 64 Kbps channels These channels can be hyperchannels or aggregated channels depending on the capabilities of the network and the receiving terminals The MUX Module transfers audio information to the Audio Module via the Information Highway The audio information is then processed by the Audio Module and forwarded via the Information Highway to the appropriate MUX ports The MUX Module transfers video information to the Video Module via the Information Highway There are two modes of video operation during a conference e Video Switching where the speaker is the only person shown on the screen The MUX module broadcasts the video of the current speaker to all sites involved in the conference e Continuous Presence where several participants are shown on the screen The video information is processed by the Video Module and forwarded via the Information Highway to the appropriate MUX Ports The MUX Module transfers T 120 data which follows the ITU T T 120 standard for data transfer and application sharing in a multipoint conference to the Data Module via the Information Highway The data information is processed by the Data Module and forwarded to the appropriate MUX Ports After the audio video and data information has been processed the processed information flows back to the MUX module for multiplexing after which it is sent to the networ
91. rive 4 15 Removing the Hard Drive 0 004 4 15 Hard Drive Limitations 0000 4 16 Backplane i544 4a oe ea nk da aaa RA aaa uw ine 4 17 Control Bus stili Rath dagen ed bones 4 18 Information Highway Li 4 19 PoWerplane uscii bee ok Oa eee a 4 19 Power Supply Module 0 0 0 0 2 eee eee eee eee 4 20 Power Module in the MGC 100 4 20 Power Module in the MGC 50 00 000008 4 21 Power Supply Cord 0 0 2 0 0 eee eee eee 4 21 MGC Hardware and Installation Guide Fuse Circuit Breaker AC Power L e eee 4 22 AMS thes tie e ie o e e ale A 4 22 Alarms Port 3 3 ea taaa ea alain 4 22 Functional Modules cres creia cece ee eee ee a e 4 23 Net E1 Net T1 ISDN Network Interface Module 4 28 The Net E1 Net T1 ISDN Network Interface Data Stream sicilia area 4 30 Net 2 Net 4 Net 8 Net 8L ISDN and Net 2 Net 4 Net 8 T1 CAS Network Interface Module 4 31 The Net 2 Net 4 Net 8 ISDN T1 CAS Network Interface Data Streams elio ORA ia 4 33 ATM Network Interface Module 4 34 IP and IP Network Interface Module 4 35 Module Port Capacity L LL 4 36 IP and IP Network Interface Module Architecture 4 38 IP Port Capacities LL 4 39 The MPI 8 Network Interface Module 4 40 MPI 8 Network Interface Data Stream 4 42 MPI Network Int
92. rol Module CPU Bus i Serial Lg equipment Ss oo A S P N MP ij rk MUX Audio Video Data Interface Module Module Module Module Fan MPI Module Box Power Module Power Supply Unit Power Plane Figure 3 6 MGC 50 functional block diagram MGC Hardware and Installation Manual Information Flow Figure 3 7 shows the flow of information within the system LS The MUX Module is not used with the H 323 lt H 323 Network Interface ISDN ATM MPI Network Interface Module Module includes MUX l aoe Ce CEO A Y v Main Control Module Video Data Module Module Information enters the MGC units from the telecommunications network via a PBX or CSU and into the Network Interface Module The information is then transferred to the MUX Module via the Internet Figure 3 7 Signal flow process The MUX Module transfers the control information to the Main Control Module via the Control Bus The control information is then processed by the Main Control Module and a control response forwarded via the Control Bus to the appropriate MUX Ports 3 7 Chapter 3 System Architecture 3 8 The MUX module divides the incoming information into audio video and data components and then forwards the information to the approp
93. secure the Functional Module Replacing the I O Cards 5 10 The following procedure is applicable for both the MGC 100 and the MGC 50 The I O Cards such as the NETIO card are hot swappable and can be replaced with the system running Use the following procedure to replace a faulty I O Card 1 Label then disconnect the external connections from the I O card 2 Unscrew the screws on the rear panel of the MGC that secure the I O Card 3 Pull the I O Card out of its slot in the Backplane 4 Carefully slide the I O Card out through the rear panel 5 Slide in the replacement I O Card 6 Push the I O Card firmly into the Backplane making sure it is properly seated in its slot 7 Tighten the screws on the rear panel of the MGC that secure the I O Card MGC Hardware and Installation Manual 8 Referring to the labels reconnect the external connections to the I O card Replacing the Fuse Use the following procedure for replacing the fuse in the MGC 50 This procedure is also relevant for earlier versions of the MGC 100 Current MGC 100 units are provided with a circuit breaker instead of a fuse 1 Ifthe MCU is working exit the MGC Manager application and turn off the MCU Otherwise skip this step 2 Switch off the power in the MGC unit Disconnect the power cord 4 Release the latch of the fuse holder and slide the fuse holder out of the MGC unit Pull the fuse out of the fuse holder Insert the new
94. stems These systems include reservation systems local or remote operator consoles management systems and billing systems One connector is a standard Ethernet LAN interface which support operator workstations operating on LANs via TCP IP The other connector is an RS 232 interface which is used for local diagnostics and production purposes An RS 232 interface connector on the front panel is provided for connecting to operator workstations locally or remotely via a modem The connector is used for local diagnostics and production purposes The Main Control Module Control Bus connects to the Functional Modules The C8M provides the interface between the Main Control Module and the Backplane This module also generates the MCU clock The operating system running on the Main Control Module uses the Processor s internal clock interrupts to set up its real time clock Sometimes the operating system s clock may skip one or several interrupts resulting in a time difference between the two clocks In such a case the operating system compares the two clocks When a discrepancy between the two clocks is detected the operating system updates its clock according to the Main Control processor s clock This feature ensures that long term reservations start on time This feature does not correct any time difference between the MGC Manager s clock which is derived from the Windows operating system run on the operator workstation and the MCU i
95. t T1 ISDN Network Interface Module 4 29 Chapter 4 Hardware Description 4 30 The Net E1 Net T1 ISDN Network Interface Data Stream Figure 4 14 shows a block diagram of the network interface of the MGC unit Telephone Network Lines RJ45 Backplane Net I O NET gt E Je ISA Right Angle 9 Board Connectors Network Interface Module LEDs Figure 4 15 Net E1 Net T1 ISDN Network Interface block diagram The Net E1 Net T1 ISDN Network Interface Module is connected to the telephone network via the Net I O card which is connected to the PABX and then the CSU The customer supplies the PABX and the CSU The Net E1 Net T1 Network Interface Module includes the ISDN PRI ISA that supports either ISDN T1 or ISDN El The ISDN data stream flows from the ISDN telecommunication network through the PABX gt CSU gt MGC RJ 45 input connector gt Net I O card gt Backplane connectors gt Network Interface Module gt the ISDN PRI ISA card to the Backplane information bus MGC Hardware and Installation Manual Net 2 Net 4 Net 8 Net 8L ISDN and Net 2 Net 4 Net 8 T1 CAS Network Interface Module 3 The Net 2 Net 4 Net 8 Net 8L ISDN Network Interface module provides the interface between the MGC unit and the ISDN network The Net 2 Net 4 Net 8 T1 CAS Network Interface module provides the interface between the MGC unit and T1 CAS lines The same type of card can b
96. the MCU and unplug it from the AC outlet Using a standard Phillips screwdriver remove six spring loaded screws from the fans cover on the MCU s rear panel a Lower the fans cover carefully without tearing the cables to gain access to its inner side Disconnect the two connectors of the power supply cable from the inside of the fan panel At this point the fan panel is loose and it may be removed From the inside of the fan panel push the connector panel mount locks of the faulty fan connector and push the connector to the front of the panel e 90 HI D 12 MGC Hardware and Installation Manual Unscrew the four screws on the Fans front panel that secure the faulty fan to the fan panel Remove the fan Position the replacement fan correctly on the rear panel Tighten the four screws on the Fans front panel that secure the fan Insert the connector to its place in the Fans panel and ensure that the panel mount locks are locked Connect the two connectors of the power supply cable 11 Reposition the fans cover panel on the rear panel and tighten the six screws to secure the fan cover to its place Connect the AC power cable to the MCU and turn on the MCU Check the fan is working correctly Replacing the Main Control Module The Main Control Module is not hot swappable Use the following procedure for both the MGC 100 and the MGC 50 to replace the Main Control Module
97. the MGC 50 on a Rack 2 23 Connecting and Setting Up the MGC 50 2 26 MGG 50 Dongle iscsi iii 2 26 Connecting to the Power Source 2 27 Connecting the MGC 50 to the LAN Network 2 28 Table of Contents Connecting the MGC 50 to the Operator Workstation PC Directly via RS 232 Optional 2 28 Connecting the MGC 50 to the Network 2 28 Connecting the MGC 50 to the ATM Network 2 30 Connecting the MGC 50 to the IP Network 2 31 MPI 8 Hardware Installation for the MGC 50 2 32 First Entry IP Configuration 2 35 IP Configuration Change on XPEK and pSOS OS 2 35 Using a DOS Diskette with the Updated LAN CFG File 2 39 CGlockine gidere ina a e e ari ate heed ae etc 2 41 System Architecture LL 3 1 Information Flow LL 3 7 MGC Manager Interface 3 9 Power Supply Flow LL 3 9 Hardware Description eee eee 4 1 MGC 100 Components Location 00 0 0 00 00000 4 2 MGC 50 Components Location 0 2 00 ernen 4 7 Main Control Module 0 0 0 0 cee eee eee 4 10 MGC 50 100 Control Unit with Removable Hard Drive 4 12 Removing the Control Unit from the MCU 4 12 Control Unit Installation 4 13 IP Configuration Change 0000 4 14 Hard Drive Operation 0 0 00 000 ee eee 4 14 Inserting the Hard D
98. the MGC Manager main window The full messages regarding the cards status can also be viewed in the Status box of the Card Settings dialog box For more information see the MGC Administrator s Guide Chapter 4 MCU Card Management Faults and errors usually software are recorded in the Faults file and can be viewed in the faults dialog box accessed from the MCU right click pop up menu For more details see the MGC Administrator s Guide Chapter 5 A list of system faults can be viewed via the Faults function A detailed list of faults can be found in the MGC Administrator s Guide Appendix B 5 19 Chapter 5 System Maintenance 5 20 Appendix A Interfaces Pin Assignment PRI Port Assignment Pin8 Pin1 Table A 1 PRI Port Assignment CS e No connection No connection eo Rem A 1 Appendix A Interfaces Pin Assignment LAN PIN Assignment RD Figure A 1 LAN Pin Assignment Alarms Port Pin Assignment Minor Major Critical Critical Major Minor Figure A 2 Alarm Port Pin Assignment A 2 MGC Hardware and Installation Manual RS 232 Pin Assignment Figure A 3 RS 232 Pin Assignment Table A 1 PRI Port Assignment Bi e o pesos C Appendix A Interfaces Pin Assignment Serial Port Connectors Pin out Assignment PIN PIN NO NO 14 15 16 17 18 19 20 21 9 22 10 23 11 24 12 25 13 ON DOA FF ON Figure A 4 RS 5
99. this step for each of the ISDN network lines to be connected to the Network Interface card installed in the MCU Y VAART N ISDN network ISDN Network connection ISDN Network connection connection for 4 spans for 8 spans Figure 2 6 ISDN network connection Leased lines should be connected using an adapter with a screw connector with solid conductor wires or a similar adapter e Connect one side of the adapter to the NET RJ 45 jack on the rear panel of the MGC 100 Then connect the leased line wires to the other side of the adapter The ISDN and T1 CAS network properties must be defined in the Network Services For details see the MGC Administrator s Guide Chapter 3 2 13 Chapter 2 Hardware Installation To connect the MGC 100 to the ATM network The MGC 100 can be connected to an ATM network The type of connection being used differs according to the ATM Network Interface card installed in the MCU If an ATM 25 network interface card is installed connect the 8 pin RJ 45 connector of the network cable to the NET RJ 45 jack on the rear panel of the MGC 100 Figure 2 7 ATM 25 network connection If an ATM 155 network interface card is installed first remove the rubber plug covering the jack Then connect the fiber optics cable connector to the Jack on the rear panel of the MGC 100 Figure 2 8 ATM 155 network connection The ATM network properties must be defined in the
100. to 4x16 by default but you can manually change the configuration to suit the type of conferences that are required in your site 4 53 Chapter 4 Hardware Description 4 54 The following selections can be enabled with the Audio bridge 1 30 4 16 6 12 The total number of conferences that can be run by the MCU is Number of Audio modules x 4 number of conferences selected for the Audio Bridge for each card For example if the system contains 2 audio modules and the Audio Bridge on one card is set to 1 30 and the Audio Bridge on the second card is set to 4 16 the MCU will be able to run a maximum of 5 conferences 1x4 1x1 If the Audio Bridge on both cards is set to 4 16 the maximum number of conferences is 8 2 cards x4 The total number of Audio ports available is No of Audio modules x 12 Maximum number of participants in a conference when the 1 30 option is selected for the Audio Bridge Video Switching 30 participants Continuous Presence 12 video 18 Audio only participants Maximum number of Gateway sessions when the Audio Bridge is set to 6 12 is No of Audio cards x 6 In addition a Music I O card is attached to the rear of the MCU of the Audio module For details see the I O cards section Input Output Cards on page 4 63 MGC Hardware and Installation Manual Audio Module Architecture Figure 4 26 shows the architecture for the Audio Module TDM Interface Audio Hardware Message Card
101. tware Upgrade Optional MGC Unit Definition in the MGC Manager Network Services Definition Database Configuration MGC Hardware and Installation Manual Chapter 2 MGC Hardware and Installation Manual Chapter 2 MGC Administrator s Guide Chapter 2 MGC Administrator s Guide Chapter 2 MGC Administrator s Guide Chapter 2 MGC Administrator s Guide Chapter 3 MGC User s Guide Volume II Chapter 6 Figure 1 3 Installation and Configuration Workflow 1 11 Chapter 1 Before You Begin 2 Hardware Installation This chapter describes the unpacking and connection of both the MGC 50 and the MGC 100 to the ISDN T1 CAS H 323 MPI or serial network to the operator workstation PC MGC Hardware and Installation Manual Hardware Chapter 2 Installation MGC Hardware and Installation Manual First Entry MCU Chapter 2 IP Configuration MGC Manager MGC Administrator s Guide Software Chapter 2 Installation MGC Unit MGC Administrator s Guide Software Upgrade Chapter 2 Optional MGC a MGC Administrator s Guide MGC Manager Chapter 2 Network Services MGC Administrator s Guide Definition Chapter 3 Database MGC User s Guide Volume II Configuration Chapter 6 Figure 2 1 Installation and Configuration Workflow Hardware Installation 2 1 Chapter 2 Hardware Installation MGC 100 Hardware Installation Unpacking and Positioning the MGC 100 To unpack and position
102. uding high bit rate video and data bit rate conversion Channel aggregation according to H 221 BONDING and Multirate HO Automatic rate detection upon endpoint connection to the conference H 320 H 323 video T 120 data and Greet and Guide conferencing Enhanced Continuous Presence multi image video IVR Interactive Voice Response Windows 95 Windows 98 Windows NT Windows 2000 Windows XP based operator station Multiple operators per conference Multiple conferences and MCUs per operator TCP IP LAN Internet access Supports serial communication V 35 RS 530 RS 449 optional 1 3 Chapter 1 Before You Begin MGC 50 MGC 100 Specifications Table 1 1 lists the specifications of the MGC 50 and the MGC 100 units Table 1 1 MGC Specifications Physical MGC 50 MGC 100 MGC 100 NEBS i 1 1 2 15 19 with 23 with 23 with mounting mounting plate mounting plates plates 19 with unit at 90 Up to 24 kg Up to 48 kg Up to 58 kg Free space above the 3 in standard 3 standard Itis MCU rack installations installation recommended for 9 if a MPI the installer to 8 is to be refer to the NEBS fitted Standards IP Protocols MGC 50 MGC 100 Audio G 711 G 722 48 G 722 1 G 728 G 729A G 723 1 Siren 7 Siren 14 H 261 H 263 Annexes N F P H 264 H 320 Protocols MGC 50 MGC 100 Audio G 711 G 722 48 G 722 1 G 728 G 723 1 Siren 7 Siren 14 H 261 H 263 Annexes N F P
103. wer a full system with power supply redundancy The capacity of each power supply module is shown in Table 4 1 Table 4 1 MGC 100 Power supply modules capacity Voltage V Maximum current Amp rs as The MGC 100 can accommodate a 48 volt DC power supply The mechanical design does not allow 48V power supply modules to be inserted into a system designed for AC input or AC power supply modules to be inserted into a system designed for 48V DC input MGC Hardware and Installation Manual Power Module in the MGC 50 In the MGC 50 the Power Supply Module is not hot swappable The power supply automatically senses the AC input voltage The capacities of the power supply module are shown in Table 4 2 MGC 50 Power supply module capacity Table 4 2 MGC 50 Power supply module capacity Voltage V Maximum current Amp Power Supply Cord The MGC 100 and the MGC 50 may only use power supply cords supplied by Polycom Inc or a equivalent UL approved cable rated at a current of up to 15 Amp depending on country standards for AC power supply The following specifications are for both the MGC 100 and MGC 50 For the DC power supply in the MGC 100 use the AWG 10 three wires cabling The following color scheme is used in the connection e Black for 48VDC e Red for RETURN 48VDC e Green or yellow green for Protective Ground 4 21 Chapter 4 Hardware Description Fuse Circuit Breaker AC P
104. xidant compound before crimp connections are made Tinned solder plated or silver plated connectors do not have to be prepared in this manner 4 Turn on the DC power distribution unit Chapter 2 Hardware Installation 2 12 5 Turn on the power by pressing on the power switch located on the rear panel of the MGC 100 unit Connecting the MGC 100 to the LAN Network Connect one end of a network cable to the LAN connector on the rear panel of the MGC 100 and the other end to the network o LAN 10 100 mbits Connecting the MGC 100 to the Operator Workstation PC Directly via RS 232 Optional Connect one end of an RS 232 cable to the COM2 connector on the front panel of the MGC 100 Control Unit and the other end to the serial port of the operator station see RS 232 Pin Assignment A 3 MGC Hardware and Installation Manual Connecting the MGC 100 to the Network To connect the MGC 100 to the ISDN network or T1 CAS Network ISDN network then an external CSU or similar equipment is needed T1 CAS network is optional It allows you to connect Audio Only participants to conferences via T1 CAS lines It uses the same network connections as ISDN and the procedure described below is applicable to both ISDN and T1 CAS lines The ISDN network is optional If the MGC 100 has to be connected to the public e Connect the 8 pin RJ 45 connector of the network cable to the NET RJ 45 jack on the rear panel of the MGC 100 Repeat

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