Nortel Compact Ics 6.0 Installer Guide
Have a look at the manual Nortel Compact Ics 6.0 Installer Guide online for free. It’s possible to download the document as PDF or print. UserManuals.tech offer 211 Nortel manuals and user’s guides for free. Share the user manual or guide on Facebook, Twitter or Google+.
P0992669 03Compact ICS 6.0 Installer Guide Welcome to ISDN This chapter provides you with some background information about ISDN and also includes information about: Analog vs. ISDN Type of ISDN service ISDN layers ISDN Bearer capability Services and features for ISDN BRI ISDN hardware ISDN standards compatibility Integrated Services Digital Network (ISDN) technology provides a fast, accurate and reliable means of sending and receiving voice, data, images, text, and other information through the telecom network. ISDN uses existing analog telephone wires and divides it into separate digital channels which dramatically increases the bandwidth. ISDN uses a single transport to carry multiple information types. What once required separate networks for voice, data, images, or video conferencing is now combined onto one common high-speed transport. Note:Nortel endeavours to test all variations of ISDN BRI and PRI on Norstar. However, due to the number of variations, this is not always possible. Check with your service provider about compatibility. Comparing ISDN to Analog ISDN offers significantly higher bandwidth and speed than analog transmission because of its end-to-end digital connectivity on all transmission circuits. Being digital allows ISDN lines to provide better quality signaling than analog POTS lines and ISDN out-of band data channel signaling offers faster call set up and tear down. While an analog line carries only a single transmission at a time, an ISDN line can carry one or more voice, data, fax and video transmissions simultaneously.
22 / Welcome to ISDN Compact ICS 6.0 Installer GuideP0992669 03 An analog modem operating at 14.4 K takes about 4.5 minutes to transfer a 1 MB data file and a 28.8 K modem takes about half that time. Using one channel of an ISDN line, the transfer time is reduced to only one minute. 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. BRI ISDN service Basic Rate Interface (BRI) ISDN service provides lines where 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. B channels B channels are the bearer channel and are used to carry voice or data information and have speeds of 64 kbps. Since each ISDN line (BRI) has more than one B-channel, a user can perform more than one transmission at the same time using a single ISDN line. 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 kbps. Data information consists of control and signal information and packet-switched data such as credit card verification.
Welcome to ISDN / 23 P0992669 03Compact ICS 6.0 Installer Guide ISDN layers ISDN layers refer to the standards established to guide the manufacturers of ISDN equipment. 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 Norstar. 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 Norstar ICS. When the BRI card LED for a loop which is used for a network connection is lit, layer 1 is functioning. Layer 2: A logical connection between the ISDN network (your service provider) and the Norstar ICS. Norstar has two of these connections for each BRI line, one for each of the logical lines. Without Layer 2, call processing is not possible and there is no dial tone. Layer 3: Also a logical connection between the ISDN network (your service provider) and the Norstar ICS. For BRI lines, layer 3 is where call processing and service profile identifier (SPID) information is exchanged. This controls which central office services are available to the connection. For example, a network connection can be programmed to carry data calls. The system of layers is important when you are installing, maintaining, and troubleshooting an ISDN system. See Problems with BRI service on page 274 for more information about working with the layers. ISDN Bearer capability Bearer capability describes the transmission standard used by the BRI line so that it can work within a larger ISDN hardware and software network. The bearer capability for BRI is voice/speech, 3.1 kHz audio, and data (unrestricted 64 kbps, restricted 64 kbps, 56 kbps).
24 / Welcome to ISDN Compact ICS 6.0 Installer GuideP0992669 03 Services and features for ISDN BRI As part of an ISDN digital network, your Compact ICS supports enhanced capabilities and features, including: faster call set up and tear down high quality voice transmission dial-up Internet and local area network (LAN) access video transmission network name display name and number blocking (BRI and analog) access to public protocols (NI-1 for BRI) BRI services and features data transmission at speeds up to 128 kbps per loop (depending on the bandwidth supported by your service provider) shared digital lines for voice and data ISDN terminal equipment Norstar Basic Rate Interface (BRI) cards also support D-channel packet service between a network and terminal connection. This allows you to add applications, such as point-of-sale terminals, without additional network connections. Any analog or digital network connections can be shared by all Norstar telephones, peripherals and applications, and ISDN terminal equipment (TE). Compact ICS supports the following ISDN services and features offered by ISDN service providers: D-channel packet service to support devices such as transaction terminals. Transaction terminals are used to “swipe” credit or debit cards and transmit the information to a financial institution in data packets. calling number identification (appears on both Norstar sets and ISDN terminal equipment with the capability to show the information) Multi-Line Hunt or DN Hunting, which switches a call to another ISDN line if the line usually used by the Network DN is busy.
Welcome to ISDN / 25 P0992669 03Compact ICS 6.0 Installer Guide subaddressing of terminal equipment (TE) on the same BRI loop. However, terminal equipment which supports sub-addressing is not commonly available in North America. Transmission of B-channel packet data is not supported by Compac tICS. Contact your ISDN service provider for more information about these services and features. Packages for ISDN service in North America are described on page 32. The terminal equipment (TE) connected to the Norstar system can use some feature codes supported by the ISDN service provider. See ISDN services and features in the Compact ICS 6.0 System Coordinator Guide for more information. Network name display When your phone rings, this feature allows you to see the name of the person that is calling you. This call information is only available from the public network and must be activated on the public network side of the switch. Name and number blocking This feature allows you to program a feature button with the code from the CO that is used to suppress the outgoing name and/or number. For information on system programming of this feature see, Outgoing Name and Number Blocking on page 240. MCID (ETSI system feature) The MCID feature allows you to use ²¡áà to have call information recorded on the central office database for an incoming call on a specific line (EUROISDN lines, only). The user must invoke the feature code without hanging up, and within 30 seconds (time varies on different networks) after the caller hangs up.
26 / Welcome to ISDN Compact ICS 6.0 Installer GuideP0992669 03 Network Call Diversion (ETSI system feature) This feature is a network function of ETSI E1 lines that allows forwarding and redirection of calls outside the Norstar network when using an ETSI ISDN line. Functionality is similar to that of External Call Forward (ECF). NCD redirects calls using the same line on which they arrive. Call forward is efficient since there is no need for additional outside lines. ISDN hardware To support connections to an ISDN network and ISDN terminal equipment, your Compact ICS must be equipped with one or more BRI Cards (BRI-U or BRI-ST). BRI Card The loops on BRI-U and BRI-ST Cards can be programmed to support either network or terminal connections. This allows you to customize your arrangement of lines, voice terminals, data terminals and other ISDN equipment. This section describes some basic hardware configurations for network and terminal connections for each loop type. For detailed wiring information for BRI network and terminal connections see Installation on page 67. BRI-U2 and BRI-U4 A BRI-U2 Card supports two loops and the BRI-U4 supports four loops. Each loop can be individually programmed to provide: a U-LT reference point connection for terminal equipment (TE) with built-in NT1 functionality (U interface), or a U-NT reference point connection for direct connection to an ISDN network BRI-ST Card A BRI-ST Card provides four loops. Each loop can be individually programmed as: an S reference point connection (S loop) to ISDN terminal equipment (TE), or a T or S reference point connection (T loop or S loop) to an ISDN network using an external NT1
Welcome to ISDN / 27 P0992669 03Compact ICS 6.0 Installer Guide U-LT reference point The U-LT reference point connection provides a point-to-point digital connection between Norstar and TE equipped with a U interface. A U-LT loop supports up to eight ISDN DNs, which identify TE to the ICS. U-NT reference points The U-NT reference point connection provides a point-to-point digital connection between the ISDN network and the ICS. A U-NT loop provides lines that can be used by all Norstar telephones, peripherals and applications, and ISDN TE. U-NT and U-LT loops can be used in combination to provide D-packet service for a point-of-sale terminal adapter (POSTA) or other D-packet device. D-packet service is a 16 kbps data transmission service that uses the D-channel of an ISDN line. point-to-point U-LT ICS U interface TE network connection U-NT ICS ISDN
28 / Welcome to ISDN Compact ICS 6.0 Installer GuideP0992669 03 To deliver D-packet service, a network connection (U-NT) is programmed to work with a terminal connection (U-LT). The loops must be on the same physical card. For example, if the network connection is a loop found on the BRI Card in Slot 1, the terminal connection must be a loop found on the same card. S reference point The S reference point connection provides a point-to-point digital connection between Norstar and ISDN terminal equipment (TE) that uses an S interface. S loops support up to seven ISDN DNs, which identify TE to the ICS. Inspect FORWARD CallersInspect FORWARD CallersMXPMXP S S Inspect FORW ARD CallersInspect FORWARD CallersMXPMXP Inspect FORWARD CallersInspect FORWARD CallersMXPMXP point-to-point ISDN TE (with terminating resistors) ISDN TE (with terminating resistors) ISDN TE ISDN TE ICS
Welcome to ISDN / 29 P0992669 03Compact ICS 6.0 Installer Guide T reference points The T reference point connections provide a point-to-point digital connection between the ISDN network and Norstar. A T loop provides lines that can be shared by all Norstar telephones, peripherals and applications, and ISDN TE. An 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 kbps data transmission service that uses the D-channel of an ISDN line. To deliver D-packet service, a network connection (T loop) is programmed to work with a terminal connection (S loop). The loops must be on the same physical card. For example, if the network connection is a loop found on the BRI Card in Slot 1, the terminal connection must be a loop found on the same card Clock Source for ISDN Cards Systems with ISDN interfaces need to synchronize clocking with the ISDN network and any connected ISDN terminal equipment. Clocking synchronization is supported by a Services Cartridge. The Compact ICS derives timing from the network using U-NT and T reference points (loops). Terminal equipment on U-LT and S reference points (loops) derive timing from the ICS. Network connection ISDN T ICS
30 / Welcome to ISDN Compact ICS 6.0 Installer GuideP0992669 03 Systems synchronize clocking to the first available, functional, network connection. If there are excessive errors on the reference network connection, or the loop fails, the next available, functional, network connection is used for clock synchronization. When you configure the network connections to the Compact ICS, you should take into account the system preferences for selecting loops for synchronization: lower numbered loops have preference over higher numbered loops the loop preference order is: 201, 202, 203, 204, 231, 232, 233, 234 the system skips U-LT, S, and analog loops when selecting a network connection for synchronization Systems with only U-LT and S loops act as timing masters for the attached terminal equipment (TE), and are not synchronized to the network. ISDN TE without access to a network connection (BRI lines) has limited or no functionality. Other ISDN BRI equipment NT1 The NT1 (network termination type 1) connects an S interface (four-wire) to a U interface (two-wire). In most cases, it connects loops from a BRI-ST card to the network connection, which uses the U interface. It can also connect S interface terminal equipment (TE) to the U loop from a BRI-U2 or BRI-U4 Card. An NT1 is not required to connect from the network to BRI-U Cards or to connect U interface TE to an ICS equipped with BRI-U Cards. The NT1 converts and reformats data so it can be transmitted to and from the S or T connection. In addition, it manages the maintenance messages travelling between the network and the NT1, and between the NT1 and the ICS. The NT1 from Nortel Networks is packaged two ways: a stand-alone package which contains one NT1 card (NTBX80XX) and a power supply (NTBX81XX) a compact package which contains up to 12 NT1 cards (NTBX83XX) and a power supply (NTBX86AA)