Siemens Saturn Iie Epabx General Description Manual
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SATURN HE EPABX A30808-X5130-AllO-l-9918 General Description Issue 1, May 1986 SECTION 6.00 PRINTED CIRCUIT BOARDS 6.01 Dimensions. The plug-in PCBs are 230 mm (9.02 in.) high by 280 mm (11.02 in.) deep. A complete list of the PCBs used in the SATURN IIE System is shown in Table 6.00. have a notch separating the edge connector tab areas and the control PCBs do not. Two extractor levers, mounted on the front edge of each PCB, allow for easy insertion or removal from the shelf connectors. Each PCB has two edge-connector tab areas with 60 termi- nals each. The PCBs plug into two mating 60-pin connectors mounted on the backplane of the basic and LTU shelves. There are two types of PCBs: peripheral and control. The type of PCB may be readily identified because the peripheral PCBs Some PCBs and module assemblies include strapping op- tions. Refer to the SATURN HE EPABX Installation Procedures practice for detailed information pertaining to these options. CIOP Table 6.00 SATURN III DESIGNATION/TITLE CONTROLLER/iNPUFOUTPUT PROCESSOR DTMF DUAL-TONE MULTI-FREQUENCY RECEIVER MEM3 MEMORY (256K) MEM4 MEMORY (1 MEGABYTE) MCA MEMORY CONTROL AND ATTENUATION CONF CONFERENCE CIRCUIT PSCO PARALLEL/SERIAL CONVERTER PSCl’ PARALLEL/SERIAL CONVERTER LTUC LINE/TRUNK UNIT CONTROL PIMD PREMIUM INSTRUMENT MODULE DIGITAL RAUP REMOTE ACCESS UNIT/PORTS SLMA-S SUBSCRIBER LINE MODULLE ANALOG - DIGITAL SLA16 SUBSCRIBER LINE ANALOG - 16 LINES SLMD SUBSCRIBER LINE MODULE DIGITAL * Optional PCB Printed Circuit Boards FUNCTION Main controller and input-output processor. Interfaces both floppy disk drives, system memory, the RAUP, the SMXTG, and the MCA. The signal buffer, part of the CIOP, directly controls the service terminal interface. Detects and validates DTMF tone. Contains 4 receivers per PCB, plus dial tone detector circuitry. MEM3 and MEM4 together provide 1.25 megabytes of dynamic RAM for call processing, which is loaded ini- tially from floppy disks. All SATURN IIE systems require at least 1.25 megabytes of memory. Provides the time-switching function and the interface between the switching network and the speech high- ways; provides attenuation (as required) for all calls, and receives control data from the CIOP to make the re- quired two-port connections. Provides 4 eight-port conference circuits plus 24 four- port conference circuits required for the consultation and transfer feature. Provides interface between the switching network and the speech highways in the basic cabinet. Provides interface between the switching network and the speech highways in the expansion cabinet. Provides the timing signals necessary to address a peripheral PCB. Multiplexes and demultiplexes both sig- nal and voice highways. Provides an interface between the system and two at- tendant consoles. Two external and one internal RS-232-C ports allow re- mote access to the system for maintenance and ad- ministrative functions. The internal port is dedicated to a 103 or 212A modem. Provides eight interfaces between rotary dial and/or DTMF station instruments and the system. Provides 16 interfaces between rotary dial and/or DTMF station instruments and the svstem. Provides an interface between eight Siemens Digital Tel- ephones (SDTs) and the system.
SATURN IIE EPABX General Description A30808-X5130-AllO-l-6918 Issue 1, May 1986 Table 6.00 SATURN HE Printed Circuit Boards (Continued) FUNCTION DESIGNATION/TITLE SLMA-0 SUBSCRIBER LINE MODULE ANALOG - OFF-PREMISES STATION Provides an interface between the sys- tem and four Off-Premises Stations (OPS). This module is resgistered with the FCC for Class C off-premises operation. SMXTG SIGNAL MULTIPLEXER/TONE GENERATOR (32 CHANNEL) TM BA-2 2-WIRE E&M TRUNK TMBA-4 4-WIRE E&M TRUNK TMBM CENTRAL OFFICE TRUNK TMIE DIRECT INWARD DIALING TRUNK 6.02 Controller/Input-Output Processor. The CIOP board, shown in Figure 6.00, contains the main processor (consist- ing of a microprocessor and related bus circuitry), signal in- terface circuitry, PROM and RAM. The CIOP board also contains timing circuitry, maintenance and reinitialization switches, status indicators and a Signal Buffer (SIB). The main processor provides the input/output function for the floppy-disk-drive controllers. The SIB processor controls the RS-232-C interface to the service terminal (TTY). 6.03 Signal Multiplexer/Tone Generator. The SMXTG PCB, shown in Figure 6.01, contains three circuits. Two of these con- sist of the signal multiplexer and the clock generator. The sig- nal multiplexer circuit is a hardware-controlled scanner/distributor that provides communication between the peripheral PCBs and the CIOP It also handles the control and status signals for the 32 speech highways, each of which has 32 time slots. The clock generator portion consists of a crystal-controlled oscillator and down counter which produces the 8.19 MHz, 4.096 MHz, 2.048 MHz, and 250 Hz clocking signals required by various elements of the SATURN IIE System. The tone generator produces all of the required supervisory tones (e.g., dial tone, ringback tone, busy tone, etc.) and pro- vides software-controlled timing windows for dial pulse tim- ing and tone cadences. 6.04 Parallel/Serial Converter. The PSC board, shown in Figure 6.02, converts the serial PCM voice signals from the LTUs to eight-bit parallel bytes, which are then multiplexed onto an eight-bit-wide parallel highway and sent to the MCA circuitry for further processing. The PSC also provides this function in reverse to provide a serial voice path back to the Distributes control signals; receives status signals from the 992 ports; contains the system clock source; produces all of the required supervisory signals (e.g., dial tone, busy tone, ringback tone) and the DTMF tone pairs required for system outpulsing. Provides four trunk circuits, each arranged for either one-way or two-way direct inward and outward service with two-wire E&M signaling. Provides four trunk circuits, each arranged for either one-way or two-way direct inward and outward service with four-wire E&M signaling. Provides four trunk circuits, each arranged for either one-way or two-way direct inward and outward service for CO, FX, and WATS applications. Provides four trunk circuits, each arranged for one-way direct inward dialing service applications from the CO. LTUs. One PSC is required for the basic shelf, and another is added when the expansion cabinet is equipped. 6.05 Memory Control and Attenuation. The Memory Con- trol and Attenuation (MCA) PCB, shown in Figure 6.03, con- tains two circuits: the Time Switch Unit (TSU) and the control memory. The TSU makes all two-port connections and pro- vides attenuation for all calls being processed with the SATURN IIE System. The control memory receives control data from the main processor and causes the PSU and the conference units to make the required connections. 6.06 Conference. The CONF board, shown in Figure 6.04, is required for all conference connections involving three to seven parties. It provides four 8-port conference circuits and twenty-four 4-port conference circuits required for consulta- tion and transfer features. 6.07 Memory. One 256K PCB (MEM3), shown in Figure 6.05, and one l-megabyte PCB (MEM4), shown in Figure 6.06, are supplied with the system to provide the overall minimum re- quired memory of 1.25 megabytes. The memory functions are controlled via a RAM controller and accessed via a common bus. 6.08 Dual-Tone Multifrequency Receiver. The DTMF board, shown in Figure 6.07, provides the means for detecting and validating DTMF tones and dial tone. Each DTMF board con- tains four separate DTMF and dial tone receiver circuits (num- bered 0, 2, 4, and 6). 6.09 Remote Access Unit/Ports. The Remote Access Unit/Ports (RAUP) PCB, shown in Figure 6.08, has three (two external) Electronics Industries Association RS-232-C serial
SATURN IIE EPABX General Description asynchronous ports. The two external ports are used for Sta- tion Message Detail Recording (SMDR), traffic metering, maintenance, and/or CMU features. The other port is dedi- cated to the internal RAUP modem (self-setting to either 300 or 1200 baud, depending on the frequency received). Use of the ,modem provides access for administration and main- tenance from a remote service terminal. 6.10 Line/Trunk Unit Control. The LTUC, shown in Figure 6.09, multiplexes and demultiplexes both the signal highway and the voice highway, and provides the timing signals neces- sary to address the LTU circuits allocated in an LTU shelf. The LTUC also provides the necessary interface to the control and switching blocks from the LTU circuitry. The LTUC is not re- quired in the basic shelf because the line and trunks circuits there have direct access to the control and switching circuitry. Each LTU shelf requires one LTUC for every four channel groups, for a maximum of two LTUCs per LTU shelf. A30808-X5130-AllO-l-8918 Issue 1, May 1986 6.11 Subscriber Line Module Analog - Station. The SLMA-S board, shown in Figure 6.10 provides an interface between conventional rotary-dial or DTMF-signaling telephone sets and the SATURN IIE System. The SLMA-S provides eight ports. Each of the eight circuits (numbered 0 through 7) pro- vides the required supervision and signaling for its associat- ed -peripheral equipment. 6.12 Subscriber Line Module Analog - Off-Premises Sta- tion. The SLMA-0 board, shown in Figure 6.11, provides an interface between Off-Premises Stations (OPS) and the SATURN IIE System. The Off-Premises Stations can be ro- tary dial or DTMF signaling telephones. The SLMA-0 provides four ports. Each of the four circuits (numbered 0, 2, 4 and 6) provides the required supervision and signaling for its as- sociated peripheral equipment. The OPS stations can oper- ate over a loop of 0 to 1800 ohms.
SATURN IIE EPABX A30808-X5130-AllO-l-8918 General Description Issue 1, May 1986 P5070-14.3/20/86 Figure 6.00 Controller/Input-Output Processor Printed Circuit Board
SATURN IIE EPABX A30808-X5130-AllO-i-B918 General Description Issue 1, May 1986 Figure 6.01 Signal Multiplexer/Tone Generator Printed Circuit Board
SATURN IIE EPABX A30808-X5130-AllO-l-B918 General Description Issue 1, May 1986 P5070-15.3/20/86 Figure 6.02 Parallel/Serial Converter Printed Circuit Board
SATURN IIE EPABX A30808-X5130-AllO-l-8918 General Description Issue 1, May 1986 Figure 6.03 Memory Control and Attenuation Printed Circuit Board 6-7
SATURN IIE EPABX General Description A30808-X5130-AllO-l-8918 issue 1, May 1986 P5070-Z-3/20/66 Figure 6.04 Conference Printed Circuit Board
SATURN IIE EPABX General Description A30808-X5130-AllO-l-B918 Issue 1, May 1986 P5070-17.3/20/86 Figure 6.05 Memory 3 (MEM3) Printed Circuit Board
SATURN IIE EPABX General Description . . P5070.19.3/20/66 Figure 6.06 Memory 4 (MEM4) Printed Circuit Board 6-10