NEC NEAX2000 IVS2 system manual Plo

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CHAPTER 1 GENERAL INFORMATION

System Configuration

PLO

The Phase Locked Oscillator (PLO) equipped on the MP card is responsible to synchronize the system to Q-SIG clocks.

The PLO generates the clock signals according to the source clocks received from network. The source clock signals are extracted at DTI cards and supplied to the PLO. Two clock routes are available; one is the Route 0 to receive clock signals from DTI0, and the other is a standby Route 1 (DTI1) to receive clock signals when no clock signals appear on the Route 0. When clock signals come from neither the Route 0 nor the Route 1, the PLO keeps generating the clock signals with the frequency of previous source clock. The PLO can receive different frequency of source clocks from the Route 0 and Route 1.

Figure 1-6shows an example of clock supply route.

Figure 1-6 Clock Supply Route Configuration

PBX

 

TDSW

 

NOTE

 

DTI0

Q-SIG

 

 

NETWORK

DTI1

 

PLO

 

: CLOCK SIGNAL SUPPLY ROUTE 0

: CLOCK SIGNAL SUPPLY ROUTE 1

NOTE: DTI0 and DTI1 must be mounted in PIM0.

NEAX2000 IVS2 Q-SIG System Manual

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ND-70923 (E), Issue 1.0

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Contents SIG System Manual Liability Disclaimer NEAX2000 IVS2 NEAX2000 IVS2 Table of Contents List of Figures List of Tables Purpose Outline of this ManualReference Manuals Chapter General Information System Outline SummaryPhysical Interface 30DTI Physical Interface 24DTIInterworking with Other Network SIGSystem Configuration Clock30DTI PLO Card Name and Function Card Name FunctionalSystem Capacity Description 24DTI 30DTISystem Conditions Time Slot Assignment ConditionTime Slot Allocation for DTI/DCH Card Time Slot Allocation for DTIService Features Connected Destination IndicationTerm Transit Counter Relaying 10 Transit CounterChapter Installation When PLUGGING/UNPLUGGING a Circuit Card PrecautionsWhen Holding a Circuit Card When Making a Switch Setting on a Circuit Card When Carrying a Circuit CardInstallation Required Equipment Equipment Description Quantity RemarksPN-30DTC-A PN-24DTA-CInstallation Procedure Installation Procedure for Q-SIGMounting DTI and DCH Card Mounting Conn Card Selection of PLO in MP Card DTI Cable Connection via MDF Cable Connection via MDFLocation of the AP Slots and the LTC Connectors for DTI Example of MDF Cross Connection for DTI DTI Cable Connection via Conn Card Cable Connection via the Conn CardExample of Coaxial Cable Connection Chapter System Data Programming HOW to Read this Chapter DTI Assignment Startdescription DataExample of 30DTI Description Data PatternsDCH Initial DCH Assignment CMA9 ENDTandem Connection Assignment Connected Destination Indication Assignment Chapter Circuit Card Information Circuit Card Information Mounting Location of Circuit Card PN-30DTC-A DTI PN-SC01 DCHList of Required Circuit Card PN-30DTC-A DTI PN-24DTA-C DTI PN-SC01 DCHPN-CP14 MP Lamp Color Function NameRUN CLKSwitch Name Setting Function Check Number Position SW2 OFFOFF OFF ModemSW4 Dip SW Down PN-30DTC-A DTI PCM FRMMfrm RMTSwitch Setting Function Check Name Number Position SensSource clock signal from network is JPS JPRRight LeftDTI0 DTI1 DTI2 DTI3 Conditions Remarks PN-24DTA-C DTI CRC Sense SW0 OFF MDFSW1 OFF DTI0 DTI1 DTI2 DTI3 DTI4 Conditions Remarks PN-SC01 DCH LPBSW0 OFF SW1 Dip SW PZ-M542 Conn Lamp Indications This card has no lampsJP1 Right JP0 RightJP2 Right PZ-M557 Conn Switch Name Setting Function Check Number Position
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