GTE Omni Si Database Technical Practices Issue 1 Manual
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Backplane Assemblies Get Started BackplaneAssembly Expansion BackplaneAssembly Power BackplaneAssembly Message Exchange SW 5210TL-130500-1001 2.3.4 The equipment cabinet contains the backplane assemblies for the Get Started, Expansion, and Power Monitor Transfer Files. Get Started backplane assembly supports the common control circuits and time-switch network for all the lines, trunks, and features used in the system.It also supports a limited number of lines, trunks, and data ports. The wire wrapped backplane is installed as the Y file in the cabinet and allows file equipment communications in the Y file. The Expansion File wire wrapped backplane is installed as the X file in the cabinet. This allows file equipment communications in the X file. The power backplane assembly contains circuitry for monitoring power supplies of equipment files, system status LEDs; and alarm signals. Communications between the files is provided for by an inter-file cable connection. 8187s-33
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TL-130500-1001 PRINTED CIRCUIT3.0 This section describes card slot locations and functions BOARDS (VOICE)for system voice applications. It also provides the mnemonic, part number, type, and general function of the cards that can be installed in the system.0 Common control cards l Tl-Span cards (digital trunks) l Universal cards (trunks, lines and features) l Power cards Card Slot3.1 The equipment cabinet configuration provides for two Locationsequipment files. The Get Started File is located in file position Y. The Expansion File is located in file position X near the top of the cabinet. The X and Y files together are called a PEC (Peripheral Equipment Complex). In the OMNI SI, this PEC is always called PEC 0. The common control equipment occupies the first 17 card slots of the Get Started File. The line and trunk interface cards occupy the last 19 card slots of the Get Started File and most of the card slots in the Expansion File. Most of the equipment installed into the equipment files consists of plug-in PCBs (Printed Circuit Boards) which are front-mounted into the card slots. An exception is the FB-20996-A Recorder Announcer Buildout Resistor (RABR) card, which mounts on the rear of the power transfer backplane assembly. The width of the cards may require allocation of more than one card slot area for installing some cards. A card may occupy one or two card slot areas (the AIOD card needs three slots). Card slot locations (Figure 3.1) are broken down as follows: l The physical card slots within the Get Started and Expansion Files are identified by the numbers at the bottom of the files (01-36).l The Get Started File (Y) is divided into software groups A and B.l The Expansion File (X) is designed into software card groups, C and D. l The hardware and software card slot designations are located at the bottom of the card slot and represent the slot number within the group (O-11). l Card slots 01 through 17 of the Get Started File (file Y) and 01 through 08 of the Expansion File (file X) are reserved for common control cards. o Card slots 09 through 19 of the Expansion File (file A or X) are reserved for Tl-span (digital trunk) cards. - Tl-span cards are double width, and the slots provided for them are designed to accommodate double width cards. SVR 5210 8187s-35
TL-130500--i 001 UIVERSALCARD SLOTS COMMON CONTROL CARD SLOTS GROUP cGROUP 0 d 5I 1 1 12 3 4 ~ iI 4 124 7;1 I 1 : c : 33 :I =- UIVERSALCARD SLOTS COMMON CONTROLCARD SLOTS GROUP AGROUP 6 ~ . . t -I--I 1 I i-i tI -Figure 3.1 - if a TI-span is not needed, then trunk, line, or feature cards can go here. it is recommended to put double width cards here. @ Card slots 18 through 36 of the Get Started File (file Y) and 09 through 36 of the Expansion File (file Xj are reserved for trunk, line, or station cards. Slot 27 in the Get Started File (Y) is not available for use. @ Card slot A0 of the Get Started File (fi!e Y) can only be used by a conference card or a dual tone multi-frequency card; this is because of the backplane configuration. PKTE: if the PD-200 data option is equipped. card slot A0 can house a data card used to extend or terminate an LPB (Local Packet Bus). S-36 8iS7SVR 5210
SVR 5210TL-I 30500-l 001 PCMUSS3.2 (Figure 3.2) Circuits that provide connections to lines (Pulse Codeare housed on line cards (eight line circuits per card) and Modulationcircuits that provide connections to trunks are housed on trunk Universal Slots)cards (four trunk circuits per card). Line cards provide connectivity between peripheral devices and the system. Trunk cards provide connectivity between the system and the Telco.Feature cards provide special capabilities to the system e. g., DTMF to rotary dial conversion, paging, connection to a music source, etc. The system has 40 card slots that can support line, trunk, or feature cards (data cards will be discussed separately). These card slots are referred to as PCMUSs. The 40 PCMUSs in the system are divided into six PCMUS groups. The physical relationships of the files, the PCMUS groups, and the card slots are shown in Figure 3.4. NOTES: 0 Card slot A0 is not counted in the 40 PCMUS total. l Slot A0 is reserved for certain cards; including this slot provides a total of 41 PCMUSs. Several types of PCBs can be installed in a PCMUS. Each occupies one or two card slots. The number of line, trunk, or feature cards that can be mounted in a given PCMUS group is physically limited by the number of slots in that group and the number of slots that a given card occupies. This paragragph provides the part number, mnemonic, name, function, and location of the PCBs that are installed within the PABX. 8l87s-37
TL-130300-1001EXPAN- SION FI1.EX GET STARTED FILE Y FlgUre 3.2FrameImage CardLocations for aFully ConfiguredSystem D-388.875210
TL-130500-1001Pulse Code3.3 The PCMUSs of the system are divided into groups. The ModulationGet Started File accommodates two groups, groups A and 8.Slot GroupsThe Expansion File differs in that its two groups, C and D, are each subdivided into two groups. Card slots Cl through C6 and C7 through Cl 1 are the subgroups of C group. Card slots DO through 05 and D6 through Dll are the subgroups of D group (see Figure 3.3). I I-PCMUS GROUP C-Ic , 4 ;1 -2 4 - 5 I- GROUPIFILE AI-‘UP 4 -. b c1 - !i- a 2 - - d0d 5 EXPFAICI~‘oNixi ST@ vi *GROUP 6 -++-- GRC+UP,+--- CONTROL FPCMUS GROUP DFILE 0 I/c-----COMMON CONTROL-If- PCM;U&$O~P AfPCMUS GROUP BSROUP 1jFigure 3 3Pulse Code Modulation Group Division SVR 5210 7187s-39
TL-130500-1001 Common ControlPrinted Circuit Boards3.4 This paragraph describes the PCBs that are installed within the common control portion of the files. Common control cards are responsible for call control and call processing. Information concerning whether the PCB is needed to support a system option or a capability requirement is also included. Figure 3.4 shows the dedicated card slots used for common control. Table 3.1 lists the FB (Functional Board) number, mnemonic, PCMUS card function, and slot location of the common control cards. -7 PCMUS GROUP C EXPFAlC12’oNwI II-PCMUS GROUP CFILE I3 Figure 3.4Common Control Card Slots s-40 7187SVR 5210
TL-130500-1001 Table 3.1Common Control CardsFB#MNE-MONICPCMUS CARD FUNCTIONSLOT LOCATION FB-17218 FB-17314 FB-17213-80 FB-17224 FB-17288 FB-17215 FB-20992 FB-17220-BO FB-17188 FB-17217 FB-20922 or FB-20771-l FB-17189 FB-17187 FB-20974CHM85 Channel Memory-8085 X/O1 and Y/15 MlMB1 Meg X 8 Bit Memory CardY/O1 MPG1 6Memory Paging- 3085 Y/O2 IFCONInterfile ConnectorXi03 and Y/O3 CP85ECentral Processor Unit-8085 EnhancedY!O4MPB85Multiprocessor Buffer-8085 Xi04 and Y;O5NSDCNarrow Serial Device ControllerYi06 FMSDFile Management System Y/O7 TP12Test Panel Interface-Version 2 YlO8EPCMN Expanded PCM Network Y/O9 INCKNetwork ClockY/l1PCMFS PCM Frame Synchronization X/05, X/O6 & X/l 6 PCMIPCM InterfaceX07, Xi08 & Y/l 7 PCMTSPulse Code Modulation Tone Source Yll3CHM853.4.1 Each file in the system requires a CHM85 (Channel FB-17218-A Memory) card. Channel memory holds the identity of the equipment interface cards and the circuit on each card being used in a call. SVR 5210Each CHM85 card contains a RAM which stores the hardware IDS of the line, trunk, and feature circuitry that have been assigned channels within the system. Ninety-six time slots (four 24-channel groups) are available per CHM85 card: e The CHM85 card stores hardware IDS. Slot X/O1 is for PCM groups 4, 5, 6 and 7; 96 time slots are stored in this card. l Slot Y/l 5 is for PCM groups 0 and 1; 48 time slots are stored in this card. When time slots are assigned to the interfaces, the channel memory controls the time slot related sampling signals to the interface cards. Channel memory is addressed via the CPU address bus. Intercard communications data is transferred between the channel memory and the CPU via the CPU data bus. Each CHM85 card functions as a PCM (Pulse Code Modulation) highway between its PCM groups and the PCM time-switch network EPCMN (Expanded PCM Network) card for data transfer. 8187s-41
-TL-130500-1001 rnEmc.J@-v Cf+RSMlM03.4.2 The CPU 1 Meg x 8 bit Memory card provides FB-17314-Aby 8 bits of system RAM. It is accessed by the CP85EThe system generic and data base software are loaded onto this card during system initialization. The software is stored within sixteen 64K pages via the MPG16 (paging card) and the address/control buses that originate at the microprocessor. Data transfers are made across the 8-bit data out/data in buses within the microprocessor complex. Data transfer between the CPU and the Ml MB is routed via the MPG 16. MPG163.4.3 The Memory Paging card performs the following FB-17213-BOA functions: @ Buffers data, address, read, write, strobe, and memory reference signals between the CPU and the Ml MB. 0 Buffers the address, control and data out buses between the CP85E and the M’lMB memory. @ Refreshes the CPU RAM. * Refreshes Ml MB memory. 0 Increases the addressable memory space from 64K to 1 Meg. This is done by using a paging method, based on processor instruction analysis, to select one of 16 physical pages (of 64K bytes) fcr processor access. @ Performs memory paging of up to Ii pages within the MlMBmemory (1 page = 64K x 8 bits). @ Permits direct memory access by peripherals (Type 200 Test Set). IFCON3.4.4 The Interfile Connector card is required only when the FB-17224-AExpansion File is installed in the field. It provides a circuit-to-circuit connection and interfaces the microprocessor buses between the Get Started and Expansion File backplanes. 8187SVR 5210