Toshiba Strata Xii, Strata Xx General Description Manual
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FAULT FINDING SECTION 100-020-500 JANUARY 1984 CHART NO. 12 OPL FAULTS here from the NO Go to Page 7 w to classify fault. OPL function Verify the external equipment and Treat as a CO < the fault line fault. Substitute cleared? MPLU when MCOU is called for. -28-
TB 020-8401 April 1, 1984 FCC REGISTRATION INFORMATION The STRATA XII & XX systems are FCC registered for connection to the public telephone network and off premise station (OPS) lines. The detailed information is: General . Registration Number BF287N-11115-KF-E Public Telephone Network Ringer Equivalence Connector Type STRATA PCB Type 0.5B RJ 25C MCOU Off Premise Station Line Facility Interface Code Service Code Connector Type STRATA PCB Type OL13C” 9.OF RJ 25C MOPU *NOTE: To be compatible with OL 73C, the OPS interface (MOPU PCB) must be equipped with a -48 V power supply. Division of Toshiba America. Inc. 2441 Michelle Drive. Turin. C.4 92tiRO I iI4l i.io-5000 I I1 Business Park Drive. , monk. N Y. 10504 19141 273- IiS
TB-O20-8402 April 15, 1984 PROPER MSTU/MXPU INSTALLATION REQUIRED In its power-up sequence, the StrataXII&XXsoftware checks to verify that the primary matrix(MXPU) exists for each station interface (MSTU). If an MSTU is present without that matrix, a// stations will be inoperative. To bring the system into operation it is necessary to: l Power down l Remove the excess MSTU or add the missing MXPU l Power up It is possible to add and remove MSTUs and MXPUsfreely while the power is on; however, if the power is switched off and on while a mismatch is present, the system will not function. The expanded matrix (MXPUs 2,4,6 &. 8) in StrataXXis also checked during thee pow_er-up sequence. This expanded matrix is not required for the system to function, but CO lines 13-21 and intercoms 5 & 6 will not function unless these PCBs are present during power-up. It is permissible, however, to have some stations with the expanded matrix and others without it. If a new MXPU is added to an existing system, its presence will not be recognized until the power is cycled OFF/ON. Refer to the table below’for the proper MXPU locations. Strata X/I&XX CROSSPOINT MATRIX LOCATIONS Division of Toshiba Amerii‘a. Inc. 244 I Xchellc Drive. Turin. CA 92680 t i 141 730-5000 1 I1 Business Park Drive. Armonk. N.Y. 10504 1914) 273- 1750