Mitel SX-200 DIGITAL Pabx Engineering Information Manual
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Engineering Information Figure 3-7 SX-200@ Attendant Console Page 3-1 O/1 0
Engineering Information 4. SYSTEM CONFIGURATION General 4.01 Figures 3-1 through 3-4 show the cabinets which contain the equipment bays and the maintenance panels. These units are d’escribed in detail in the following paragraphs. Equipment Cabinets 4.02 The 480-port configuration has two equipment cabinets: a Con- trol cabinet and a Peripheral cabinet. The 336-port configura- tion has one cabinet; the Control Cabinet. The Control cabinet contains two digital bays and an optional peripheral shelf; the 336-port config- uration has two digital bays in its peripheral shelf; the 480-port con- figuration has one analog bay in its peripheral shelf. The Peripheral cabinet contains two optional analog equipment bays. Digital Equipment Bays 4.03 Digital equipment bays house the voice/data line cards, LWGS trunk cards, and universal peripheral cards. Digital bays reside only in the control equipment cabinet. Bay 1 (optional) may contain up to eight digital cards, and a bay power supply. Bay 2 (not optional) may contain up to four digital cards, a bay power supply and a floppy disk drive unit. Bays 3 and 4 (optional in 336-port configuration) are the same as Bay 1, but contain a Bay Control card in the lower right position. The peripheral cabinet is not used if digital Bay 3 is present. Analog Equipment Bays 4.04 Analog equipment bays house the analog peripheral circuit cards, a Digital Interface card (DIC), a Peripheral Control card (PCC), and an interrupt Scanner card. Analog equipment bays are op- tional, and reside in either the control equipment cabinet (Bay 3) or the peripheral equipment cabinet (Bay 4). Bay 5 requires only a DIC card and peripheral circuit cards. Available Cards 4.05 Except for the Main Control card, each card in the Control shelf interfaces the system to 12 pairs, which can be cross- connected at the distribution frame. A brief description of each digital card type is given below: Main Control Card (MCC) - The MCC contains the main system pro- cessor, the digital crosspoint switching network, the dynamic RAM memory, and other circuits. It controls all system operation and call processing (see Part 8 for additional information). Bay Control Card - The Bay Control Card controls and monitors the status of lines, trunks and other circuits within the bay. It commu- nicates with the Main Control Card. The Bay Control Card is installed in the lower rightmost slot of each active bay, except bays 1 and 2. This Page 4-l
Engineering Information Page 4-2 card must not be inserted or removed with the power on. On-Premises Line Card (ONS) - The ONS contains 12 digital line circuits to interface with analog stations located within the same building as the DIGITAL PABX. LS/GS Trunk Card - The CO Trunk card provides six digital interface circuits to interface between the Digital PABX and an analog CO. These trunks can be individually set to operate as Loop Start or Ground Start, via switches on the card (see Section MITL9108-093-‘l25-NA). COV Line Card - Provides six SUPERSET@ line circuits, which serve as digital “control-over-voice” interfaces between SUPERSET@ sets and the PABX. OPS Line Card - The OPS Line Card contains six digital line circuits to interface with analog stations not in the immediate vicinity of the PABX. DID Trunk Card - Provides six circuits which provide digital interfaces for Direct Inward Dialing to the DIGITAL PABX. Universal Card - The Universal card can ho%d up to four modules for special features required by the system. Each module provides an interface between the backplane and three line pairs. Console Interface Module - Interfaces the attendant console to the PABX. DTMF Receiver Module - Receives and decodes DTMF dialing, providing binary digits to the PABX. E&M Trunk Module - Provides digital interfacing between the SX-200@ DIGITAL PABX and other PBXs, analog Toll Offices, or any other analog equipment which require special signaling. Music on Hold/Paging Module - Provides an input for a music source, a paging output, and a control relay for an external paging amplifier. 4.06 A brief description of each analog card type and analog control card is given below; each card in a Peripheral bay interfaces the system to eight pairs: 8-Station Line Card - Provides eight circuits which serve as inter- faces between the analog station and the switching circuitry in the analog bays. SUPERSET’ sets may not be used with this line card. SUPERSET@ Line Card - Provides eight SUPERSET@ line circuits which serve as interfaces between the SUPERSETm sets and the switching circuitry in the analog bays. Standard telephone sets may not be used with this line card.
Engineering lnformatian CO Trunk Card - Provides 4 interfaces for use between the Central Office and the SX-200@ DIGITAL PABX switching circuitry for ehher loop start or ground start CO trunks. E&M Trunk Card - Provides 2 interfaces for use between the SX-200@ DIGITAL PABX and another PBX or analog Toll Offices, or any other analog equipment which requires special signaling. DID/Loop Tie Trunk Card - Provides 2 interfaces for Direct Inward Dialing and other dial-in lines to the SX-200@ DIGITAL PABX. Digital Interface Card (DIG) - The main function of the DIC is to interface the analog card types in the analog bays to the digital switching network. Scanner Card - The function of the Scanner card is to sequentially scan all ports to detect signals which require processor action in the analog peripheral bays. Peripheral Control Card (PCC) - This card controls system operation within the Peripheral bays, and is under control of the Main Control card. Power Supplies 4.07 Digital Bays have shelf mounted power supplies which generate the system operating voltages of 12 Vdc; 5 Vdc, -5 Vdc, -12 Vdc,,-28 Vdc, -48 Vdc and 90 Vat ringing voltage from a 115 Vat input (optionally 230 Vat). 4.08 Analog Bays require a rear door mounted power supplies gen- erate the system operating voltages of 8 Vdc, -5 Vdc, -10 Vdc, -48 Vdc and 90 Vat ringing voltage from a 115 Vat power input (optionally 230 Vat). A system configuration that includes an analog Bay 3 or a second equipment cabinet will employ one rear door mounted power supply on each cabinet. A door mounted power supply is required in the Control Cabinet only if Bay 3 is installed. Refer to Part 9 of this Section for further details on the power supplies. Page 4-3/3
Engineering Information 6. SYSTEM ENVIRONMENTAL AND INSTALLATION REQUIREMENTS General 6.01 This Part is concerned with the design parameters of the sys- tem as they are affected by environmental conditions. Electrical characteristics and performance are detailed in the subsequent parts of this Section. 6.02 The parameters in this Part are segregated into the following subparts: l Design Data and Compatibility as detailed in 6.03 and 6.04, 0 Shipping and Storage data as detailed in 6.05 and a Installation Requirements as detailed in 6.07 to 6.10. Design Data 6.03 The systems are designed to operate within the environmental conditions outlined in Table 6-l. TABLE 6-l ENVIRONMENTAL OPERATING CONDITIONS Specification Temperature Relative humidity Acoustic noise Range 0°C to 40 “C (32°F to 104°F) maximum. 40°C to 40°C (50°F to 104°F) for the floppy disk. 0°C to 30°C (32°F to 86°F) for the console. 20% to 90% noncondensing. The system radiates less than 45 dl3 SPL, “A” weighted, measured- 1200 mm (47.2 in.) from the center of the cabinet. Vibration Electromagnetic Suseptibility Electrostatic Discharge 0.5 g (4.903 m/s) (sinusoidal) 5 to 200 Hz. The system is able to function in an electric field of 50 V/m without major degradation of service. The system will continue to function with no noticeable effects after being exposed to the following electrostatic discharges on to various parts of the equipment (i.e., faceplates, switches, etc.): a) 20 kV from a 60 pF capacitor, through a 10 kilohm resistor b) 10 kV from a 100 pF capacitor, through a 500 ohm resistor. Compatibility 6.04 The systems are compatible with: 0 Single line 2500 or 500-type telephone sets or equivalent sta- tion apparatus. Page 6-l
Engineering information l Line cards of a lA1/2 telephone key system. 0 Standard Dial Pulse and DTMF telephone sets equipped with or without message waiting lamps. l Step-by-step, crossbar and commonly used electronic central office equipment. l Other PABXs via Tie trunk interfaces. Shipping and Storage 6.05 The equipment is designed to withstand shipping by truck, rail, air or sea without damage, when packaged in conventional shipping containers of the manufacturer. The range of environmental conditions that the equipment is capable of withstanding in storage is shown in Table 6-2. Heat Dissipation 6.06 A fully configured SX-200@ DIGITAL PABX will dissipate heat in the following manner (figures are approximate): Bays 1 and 2 500 BTU/hr Bay 3 1000 BTU/hr Bay 4 1000 BTU/hr Bay 5 950 BTU/hr Installation Requirements 6.07 The installation requirements are detailed in Section MlTL9108-093-200-NA, Shipping, Receiving and Installation. Cabling and Cross-Connections 6.08 The following paragraphs detail the cabling and cross- connections required when installing the PABX. Station and Trunk Cabling 6.09 Station and trunk cabling terminates on the building cross- connect terminal in the normal manner. Cable Terminals 6.10 Section MITL9108-093-200-NA, Shipping, Receiving and Instal- lation gives full details of the requirements for interconnection of cables between the building cross-connect terminal and the con- nector locations in the rear of the cabinet (Figures 3-1 and 3-2), including power fail transfer connections between the cabinet and the cross-connect terminal. Page 6-2
Engineering Information SUPERSET@ Set Loop Lengths 6.11 The following loop lengths apply to the SUPERSET@ Line Card (analog Bays 3,4,5) and the COV Line Card (Digital Bays 1,2). Wire Gauge SIJPERSET LINE CARD COV LINE CARD 22 840 m 2750 ft 2010 m 6600 ft 24 610 m 2000 ft 1524 m 5000 ft 26 470m 1550ft 1006 m 3300 ft TABLE 6-2 Specification Temperature range Relative humidity Vibration Shock Low pressure Temperature shock STORAGE CONDITIONS Range -50°C to 71°C (-58°F to 159.8”F); 10°C to 40°C (50°F to 104°F) for the floppy disk. -20°C to 60°C (-4°F to 140°F) for the console. Up to 100 % RH at 18°C (64.4”F); 10 to 70% RH for the console 0.5 g (4.903 m/s ) (sinusoidal) 10 to 500 Hz Up to 75 cm (30 in.) drop depending upon package 87 mm Hg 15,152 m (50,000 ft) -50°C to 25°C (-58°F to 75°F) in 5 minutes Page 6-3/3
Engineering Information 7. PROGRAMMING AND CUSTOMER DATA ENTRY General 7.01 The design and software of the SX-200@ DIGITAL PABX allows maximum programming flexibility during installation or when- ever a change is required. The features described in Section MITL9108-093-?05-NA are enabled or disabled as required at the time of installation. Any subsequent changes to the original data may be accomplished by reprogramming from a customer’s Attendant Console or Maintenance Terminal. Full details of programmjng procedures are outlined in Section MITL9108-093-270-NA, Customer Data Entry. Initial Loading 7.02 Basic programming of the SX-200@ DIGITAL PABX is accom- plished by loading the system software from a floppy disk. The particular version of the system software determines the “generic” level, which then applies to the particular system in general. The disk is controlled by the system main processor on the Main Control Card. Upon a system reset, the processor runs PROM-based diagnostics on itself and the other system processors, and then proceeds to load the system software from the disk. Customer Data Entry 7.03 Along with the system software, the floppy disk will contain .a default customer database. This database may be customized to suit a particular site’s requirements Modification of the database may be accomplished in two ways: entering data by hand via th.e Attendant Console or Maintenance Terminal, or by loading via floppy disk. Refer to Sections MITL9108-093-315-NA, Attendant Console, and/or MITL9108-093-351-NA, RS-232 Maintenance Terminal. Whether the Attendant Console or Maintenance Terminal is used, the correct password must be entered to access the customer database; Some data may be entered via a standard telephone set; e.g., call forwarding. The displays and softkeys associated with the console and terminal enable existing data to be rapidly accessed and viewed, new data to be added, and data to be deleted. Page 7-l/1
Engineering Information 8. TECHNICAL DESCRlPTlON General 8.01 The SX-200’ DIGITAL Private Automatic Branch Exchange (PABX) is a microprocessor-controlled PABX which uses dis- tributed processing and a combination of time- and space-division switching. The system uses the PCM (Pulse Code Modulation) form of time-division multiplexing as its digital conversion format. The system employs b--digital peripheral cards and digitally-interfaced analog peripheral cards. 8.02 The SX-200@ DIGITAL PABX system architecture is illustrated in Figures 8-l and 8-2. The major component blocks are de- scribed in the paragraphs below. Circuit Switch Links 8.03 The subsystems of the SX-200(@ DIGITAL PABX communicate over 2,048 kHz serial links. Each link is a continuously repeated data frame comprising 32 channels; each channel contains an a-bit word which occupies an equal time slot within the frame. These links are segregated by function into circuit switch links and message links. 8.04 Circuit switch links provide paths through the system for the transfer of peripheral-related data; i.e., PCM audio, or TDM data. Each digital peripheral interface card has dedicated to it one- and-one-half circuit switch links which connect the card to the pe- ripheral switch. Control 8.05 The main processor, which has overall control of the system, is a 16 bit MC68000 CPU. It is supported by 1 megabyte of Dy- namic Random Access Memory, which is used for the storage of system software, programmed devices, abbreviated dial digit strings, ARS digit strings, and SUPERSET@ line appearances. Dynamic memory allocation is illustrated in Figures 8-3 through 8-7. The system also provides 1.24 megabytes (formatted) of disk space; this is used for the permanent storage of the system software and the customer database. 8.06 The peripheral processors in 480-port configurations, which control the analog cards in Bays 3, 4 and 5, are 8 bit MC6809 CPUs, and are supported by 32 kbytes of static RAM. Each of the analog bays contain a Digital Interface card (DIC) which interfaces the analog peripheral cards to the digital end of the system. Controlling each DIC card is one 8 bit MC6809 CPU, supported by 8 kbytes of static RAM. The Bay Control Card in digital bays 3 and 4 of the 336-port configuration has 256 kbytes of RAM and interfaces its bay to the MCC. 8.07 The Attendant Console contains a MC6809 CPU, supported by 16 kbytes of EPROM and 4 kbytes of static RAM, which controls the display, and monitors keystrokes The Console module on the Page 8-I