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Chapter 5 ISDN overview

NN40020-309

NN40020-309

An analog modem operating at 14.4K takes about 4.5 minutes to transfer a 1MB data file and a
28.8K modem takes about half that time. Using one channel of an ISDN line, the transfer time is
reduced to only 1 minute and if two ISDN channels are used, transfer time is just 30 seconds.

When transmitting data, the connect time for an average ISDN call is about three seconds per call,
compared to about 21 seconds for the average analog modem call.

Types of ISDN service

Two types of ISDN services (lines) are available: Basic Rate Interface (BRI) and Primary Rate
Interface (PRI). Each line is made up of separate channels known as B and D channels which
transmit information simultaneously.

•

BRI is known as 2B+D because it consists of two B-channels and one D-channel.

•

PRI is known as 23B+D(in North America) or as 30B+D (in Europe). In North America,
23B+D consists of 23 B-channels and one D-channel (T1 carrier). In Europe, 30B+D consists
of 30 B-channels and one D-channel (E1 carrier).

B-channels:

B-channels are the bearer channel and are used to carry voice or data information and

have speeds of 64 kb/s. Since each ISDN link (BRI or PRI) has more than one B-channel, a user
can perform more than one transmission at the same time, using a single ISDN link.

D-channels:

The standard signaling protocol is transmitted over a dedicated data channel called

the D-channel. The D-channel carries call setup and feature activation information to the
destination and has speeds of 16 kb/s (BRI) and 64 kb/s PRI. Data information consists of control
and signal information and for BRI only, packet-switched data such as credit card verification.

ISDN layers

ISDN layers refer to the standards established to guide the manufacturers of ISDN equipment and
are based on the OSI (Open Systems Interconnection) model. The layers include both physical
connections, such as wiring, and logical connections, which are programmed in computer
software.

When equipment is designed to the ISDN standard for one of the layers, it works with equipment
for the layers above and below it. There are three layers at work in ISDN for BCM50. To support
ISDN service, all three layers must be working properly.

•

Layer 1: A physical connection that supports fundamental signaling passed between the ISDN
network (your service provider) and the BCM50 system. When the LED on a BRI S/T Media
Bay Module configured as BRI is lit, your layer 1 is functioning.

•

Layer 2: A logical connection between the central office or the far end and the BCM50 system.
Without Layer 2, call processing is not possible.

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Содержание BCM50 2.0

Страница 1: ...BCM50 2 0 Business Communications Manager Document Status Standard Document Number NN40020 309 Document Version 03 01 Date September 2006 Telephony Device Installation Guide...

Страница 2: ...accurate and reliable but are presented without express or implied warranty Users must take full responsibility for their applications of any products specified in this document The information in thi...

Страница 3: ...devices 14 IP devices 14 ISDN devices 15 Chapter 3 Installing an analog station media bay module 19 Installing and configuring a media bay module 20 Configuring the media bay module 21 Wiring the ASM...

Страница 4: ...r ISDN 38 ISDN BRI NT1 equipment 38 ISDN standards compatibility 38 Planning your ISDN network 39 Ordering ISDN PRI 39 Ordering ISDN BRI 39 Supported ISDN protocols 40 Chapter 6 IP telephone overview...

Страница 5: ...er card list 61 Appendix A ADID wiring chart 63 Appendix B ASM8 ASM8 and GASM wiring chart 65 Appendix C DSM16 and DSM32 wiring charts 67 Appendix D DTM wiring chart 69 Appendix E BRI wiring chart 71...

Страница 6: ...6 Contents NN40020 309 NN40020 309...

Страница 7: ...up Profile and Telset Administration to configure certain BCM50 parameters The information in this guide explains installing and configuring components registering and relocating telephones and device...

Страница 8: ...system enables you to create and provide telephony applications for use in a business environment BCM50 key hardware elements BCM50 includes the following key elements BCM50 main unit BCM50 expansion...

Страница 9: ...ephony engine CTE VEWAN Interactive Voice Response IVR IP Music Contact Center Symbols and text conventions These symbols are used to Highlight critical information for the Administration Guide N00605...

Страница 10: ...ocedure Convention Example Used for Word in a special font shown in the top line of the display Pswd Command line prompts on display telephones Underlined word in capital letters shown in the bottom l...

Страница 11: ...ions This document refers to other related publications which appear in the following list To locate specific information you can refer to the Master Index of BCM50 2 0 Library Device Configuration Gu...

Страница 12: ...pport cases Getting Help over the phone from a Nortel Solutions Center If you don t find the information you require on the Nortel Technical Support Web site and have a Nortel support contract you can...

Страница 13: ...lay buttons 16 memory buttons with indicators eight memory buttons without indicators The T7316 supports separate mute key and a headset key under the dial pad T7316E two line display three display bu...

Страница 14: ...1 has a single line text display with a row of display keys on the second display line The IP Phone 2001 can be used to call through any type of BCM50 line IP Phone 2002 connects through an IP link to...

Страница 15: ...mation on ISDN devices hardware Table 1 is a matrix of telephony devices and the BCM releases with which they are compatible Table 1 also shows what media bay module MBM is needed to support each devi...

Страница 16: ...s CTM8 North American systems only 8 Analog lines global analog trunk module 4 GATM4 4 Analog lines GATM8 8 Analog lines 4x16 combination MBM North American systems only 4 also requires a full DS30 ch...

Страница 17: ...less handsets DECT selected profiles only DSM 32 Digital extensions are for digital or IP telephones You do not need to include IP telephones when you calculate the number of required DSM MBMs Table 3...

Страница 18: ...18 Chapter 2 Device description NN40020 309 NN40020 309...

Страница 19: ...ides the name phone number and other information about the caller to the end user at the start of the call firmware downloading capability allows the system to upgrade the ASM8 and GASM firmware at cu...

Страница 20: ...and related components refer to Installation and Maintenance Guide NN40020 302 Installing and configuring a media bay module You can install media bay modules MBM in BCM50 main units and expansion uni...

Страница 21: ...ger and connect to your BCM50 system 2 Click Configuration Resources Telephony Resources The Telephony Resources panel appears see Figure 27 3 In the Modules table select the location of the MBM that...

Страница 22: ...can wire the ASM for your system using the wiring chart for more information refer to the ASM8 ASM8 and GASM wiring chart on page 65 Installing analog devices After the ASM is correctly wired you can...

Страница 23: ...modems and fax machines The ATA2 provides on premise service only protected plan wiring only Refer to the following topics for information on installing an ATA2 Configuration overview on page 23 Inst...

Страница 24: ...ows the pin outs for the connection cables Figure 5 ATA2 pin outs To connect the ATA2 1 Connect one end of a line cord to the ATA2 terminal jack 2 Connect the other end of the line cord to your teleph...

Страница 25: ...f the two screws showing 4 Align the slots at the back of the ATA2 unit over the screws 5 Push the unit against the wall The line jack terminal jack and power supply connector must be at the top of th...

Страница 26: ...analog telephone attached to the ATA2 2 Ensure that the analog port terminates correctly in 600 ohms Replace the analog telephone with the test set Use RECEIVE 600 OHM HOLD mode on the test set 3 Ens...

Страница 27: ...TRANSMIT 600 OHM HOLD mode on the test set 3 Make sure the test set connects in parallel to the service line before removing the analog telephone or the line drops 4 Remove the analog telephone 5 Intr...

Страница 28: ...28 Chapter 4 Installing the analog terminal adapter NN40020 309 NN40020 309...

Страница 29: ...information through the telecom network ISDN uses existing analog telephone wires and multiplex it into separate digital channels which increases bandwidth ISDN uses a single transport to carry multip...

Страница 30: ...B channel a user can perform more than one transmission at the same time using a single ISDN link D channels The standard signaling protocol is transmitted over a dedicated data channel called the D...

Страница 31: ...is voice speech 3 1 kHz audio fax and data unrestricted 64 kb s restricted 64 kb s or 56 kb s Services and features for ISDN BRI and PRI As part of an ISDN digital network your system supports enhanc...

Страница 32: ...s To support the D packet service your ISDN network and financial institution must be equipped with a D packet handler To convert the protocol used by the transaction equipment to the X 25 protocol yo...

Страница 33: ...vice provider If the Calling Party Name has the status of private it appears as Private name if that is how the service provider has indicated that it mus appear If the Calling Party Name is unavailab...

Страница 34: ...e is charged for this service Inwats Inwats is a type of long distance service which allows you to receive calls originating within specified areas without a charge to the caller A toll free number is...

Страница 35: ...to the system Two way DID With PRI the same lines can be used for receiving direct inward dialing DID and for making direct outward dialing DOD calls The dialing plan configured by your customer serv...

Страница 36: ...assign the first DTM as the primary reference the second DTM as the secondary reference If the system has a BRI module it should be set as the timing master when a DTM in the same network is defined a...

Страница 37: ...eference point A T loop can be used in combination with an S loop to provide D packet service for a point of sale terminal adapter POSTA or other D packet device D packet service is a 16 kb s data tra...

Страница 38: ...are not synchronized to the network ISDN TE without access to a network connection BRI lines has limited or no functionality If your system has both a BRI S T configured as BRI and a DTM configured as...

Страница 39: ...d or BRI service from your service provider Set the BCM50 equipment to the Euro ISDN protocol Ordering ISDN BRI The following provides information about how to order ISDN BRI service for your BCM50 Or...

Страница 40: ...to use sub addressing for the feature to work Ordering ISDN BRI service outside Canada or the United States Outside of Canada or the United States order Euro ISDN PRI and or BRI service from your serv...

Страница 41: ...ees can be more productive because they are no longer confined by geographic location IP telephones work anywhere on the network even over a remote connection With Nortel wireless e mobility solutions...

Страница 42: ...a hardwire connection to the BCM50 2 0 Instead they must be plugged into an IP network which is connected to the through the integrated interface LAN card on the BCM50 2 0 Calls made from IP telephone...

Страница 43: ...hed Telephone Network on page 46 Figure 10 shows components of a BCM50 2 0 network configuration In this example two BCM50 2 0 systems are connected both through a PSTN connection and through an IP ne...

Страница 44: ...STN Multiple BCM50 2 0 systems also can be linked together on a network of VoIP trunks and or dedicated physical lines The BCM50 2 0 can be connected to a LAN through a the integrated interface LAN ca...

Страница 45: ...system telephones are received through the integrated interface LAN card or the IP network and are translated within the BCM50 2 0 to voice channels The IP telephones connect to the BCM50 2 0 across...

Страница 46: ...o the Internet A BCM50 2 0 can have up to two LAN connections Public Switched Telephone Network The Public Switched Telephone Network PSTN can play an important role in IP telephony communications In...

Страница 47: ...get better voice quality by configuring the IP telephone to use a G 729 Codec The BCM50 2 0 supports these codecs G 729 G 723 G 729 with VAD Voice Activity Detection G 723 with VAD G 711 uLaw G 711 a...

Страница 48: ...situation by the time the voice of the interrupter reaches the interruptee the interruptee has spoken 2 jitter size frames past the intended point of interruption In cases where very large jitter size...

Страница 49: ...d field c If you want the system to automatically assign DN records to the telephones select the Auto assign DNs check box 2 Configure each telephone Configuring telephone settings on page 50 How you...

Страница 50: ...m When you first connect the telephone to the IP connection you receive one of the following If the telephone is not yet registered and when a password is entered in the Terminal Registration screen t...

Страница 51: ...key to enter the period in the IP addresses 6 Press OK to move forward To access the local configuration menu on an IP Phone 2001 2002 2004 1 Restart the telephone by disconnecting the power then rec...

Страница 52: ...start the telephone by disconnecting the power then reconnecting the power After about four seconds the top light flashes and NORTEL NETWORKS appears on the screen 2 When the greeting appears immediat...

Страница 53: ...he period in the IP addresses Press OK to move forward After you have entered all the configuration information the telephone attempts to connect to the system The message Locating Server appears on t...

Страница 54: ...rest router to the telephone The router for IP address W X Y Z is usually at W X Y 1 If there are no routers between the telephone and the system network adaptor to which it is connected for example a...

Страница 55: ...loyed the system administrator responsible for the switch can provide the VLAN IDs for your system Cfg XAS 0 No default 1 Yes If you want to enable connection to a Net6 service provider server choose...

Страница 56: ...the IP connectivity to the system cables hubs and so on Slow connection between the handset and the system If the connection between the IP client and the system is slow ISDN dialup modem change the...

Страница 57: ...Chapter 7 Registering Nortel 20XX and 11XX IP telephones 57 Telephony Device Installation Guide...

Страница 58: ...58 Chapter 7 Registering Nortel 20XX and 11XX IP telephones NN40020 309 NN40020 309...

Страница 59: ...P telephones always retain their programming Refer to Moving IP telephones on page 60 Tips if set relocation is enabled Relocate existing telephones before new telephones are installed on the jacks Th...

Страница 60: ...2050 is turned off you may still want callers to go to your voicemail To keep your IP telephone active and retain DN specific features activate the Keep DN alive feature To keep an IP telephone activ...

Страница 61: ...tion and the power connection from the telephone 3 Reinstall the telephone at the new location and reconfigure the telephone User card list The following is a list of feature and device user guides th...

Страница 62: ...62 Chapter 8 Relocating telephones NN40020 309 NN40020 309...

Страница 63: ...ring page 63 lists the wiring details for the RJ 21 connector on the ADID4 and ADID8 Use the first four lines for the ADID4 and use all eight lines for the ADID8 Table 7 ADID4 and ADID8 RJ 21 connecto...

Страница 64: ...64 Appendix A ADID wiring chart NN40020 309 NN40020 309...

Страница 65: ...ector on the ASM Table 8 ASM RJ 21 connector wiring Sheet 1 of 2 Set Pin Connection Wire color Default DN on Expansion port 1 Default DN on Expansion port 2 1 26 Tip White Blue 237 269 1 Ring Blue Whi...

Страница 66: ...ring chart NN40020 309 NN40020 309 50 No connection Violet Slate 25 No connection Slate Violet Table 8 ASM RJ 21 connector wiring Sheet 2 of 2 Set Pin Connection Wire color Default DN on Expansion por...

Страница 67: ...RJ 21 connectors Table 9 lists the wiring details for the RJ 21 connectors on the DSM16 and DSM32 Table 9 DSM16 and DSM32 RJ 21 connector wiring Sheet 1 of 2 Set Pin Connection Wire color Default DN...

Страница 68: ...ip Black Orange 248 264 280 296 12 Ring Orange Black 13 38 Tip Black Green 249 265 281 297 13 Ring Green Black 14 39 Tip Black Brown 250 266 282 298 14 Ring Brown Black 15 40 Tip Black Slate 251 267 2...

Страница 69: ...ble 10 and Table 11 list the wiring details for the RJ 48C port Table 10 DTM RJ 48C port wiring Pin Signal 1 Receive Ring 2 Receive Tip 3 Receive Shield 4 Transmit Ring 5 Transmit Tip 6 Transmit Shiel...

Страница 70: ...70 Appendix D DTM wiring chart NN40020 309 NN40020 309...

Страница 71: ...rminal adapters and Grp 3 Fax machines The T Loops are used to connect to the CO PSTN Figure 17 BRI ports and pin out BCM50b shown The table BRI port wiring on page 71 and the table BRI line numbering...

Страница 72: ...chart NN40020 309 NN40020 309 Table 13 BRI line numbering Port number Default line numbers on Expansion port 1 Default line numbers on Expansion port 2 1 065 066 095 096 2 067 068 097 098 3 069 070 0...

Страница 73: ...chines The T Loop connections are used to connect to the CO PSTN Figure 18 BRIM RJ 45 ports Table 14 and Table 15 list the wiring details for the RJ 45 ports Warning For a U Loop connection the BRIM m...

Страница 74: ...chart NN40020 309 NN40020 309 Table 15 BRIM line numbering Port number Default line numbers on Expansion port 1 Default line numbers on Expansion port 2 1 065 066 095 096 2 067 068 097 098 3 069 070...

Страница 75: ...19 G4x16 G8x16 connectors The table G4x16 G8x16 MBM upper RJ 21 amphenol connector wiring for digital telephones page 75 lists the wiring details for the upper RJ 21 amphenol connector and the table...

Страница 76: ...Slate Red 11 36 Tip Black Blue 263 295 11 Ring Blue Black 12 37 Tip Black Orange 264 296 12 Ring Orange Black 13 38 Tip Black Green 265 297 13 Ring Green Black 14 39 Tip Black Brown 266 298 14 Ring B...

Страница 77: ...Slate White 4 31 Tip Red Blue 068 098 6 Ring Blue Red 32 No connection Red Orange 7 No connection Orange Red The following part of the wiring chart applies only to the G8x16 MBM 33 No connection Red...

Страница 78: ...device the icon is lit on the phone If you try to seize the line using the phone the display shows in use Also in the event of a power failure an analog set on line 1 goes active powered by the CO Tab...

Страница 79: ...1 connector on the GATM4 Table 18 GATM4 RJ 21 connector wiring Sheet 1 of 2 Line Pin Connection Wire color Default line numbers on Expansion port 1 Default line numbers on Expansion port 2 1 26 Tip Wh...

Страница 80: ...t line numbers on Expansion port 1 Default line numbers on Expansion port 2 1 26 Tip White Blue 065 095 1 Ring Blue White 2 27 Tip White Orange 066 096 2 Ring Orange White 28 No connection White Green...

Страница 81: ...0 Tip Violet Slate 25 Ring Slate Violet Note The AUX port supports full data speeds When the line is in use by an analog device the icon is lit on the phone to indicate it is in use If you try to seiz...

Страница 82: ...82 Appendix H GATM wiring chart NN40020 309 NN40020 309...

Страница 83: ...nit overview 14 B B channel described 30 BCM4 0 overview 8 block IP telephone dialout 56 BRI Basic Rate Interface clock source 38 module 36 services and features 31 See also ISDN BRIM default line num...

Страница 84: ...urement 25 installation configuration display keys 51 52 IP telephone server parameters 54 restart to configure 51 52 Integrated Services Digital Network See ISDN international components 13 invalid s...

Страница 85: ...8 80 locating server 53 M M1 IPT defined 45 maximum loss ATA2 25 MBM configuring 21 default DNs 65 default line numbers 69 72 74 75 80 wiring chart 63 65 67 69 73 75 79 MCDN Meridian Customer Defined...

Страница 86: ...Port 54 S2 RETRY Count 54 SERVER NO PORTS LEFT 55 server parameters 54 Set IP 54 set relocation 59 SL 1 M1 IPT 45 slow connection IP telephones 56 synchronize clock source 38 T T reference point 37 T...

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