Samsung OfficeServ 7400 Technical Manual
Also see for OfficeServ 7400: System administration guideUser guideUser instructionsTechnical manualGeneral description
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OfficeServ 7400 INSTALLATIONTECHNICAL MANUAL PART 6 MAY 20106.26.2 CONNECTING C.O. LINES6.2.1 Connecting Analog Loop Start LinesUse a twisted pair (AWG #24 (or AWG #26) wire or cord to connect an analog loop start C.O.line to pins 4 & 5 of the RJ45 jack on the 8TRK/8TRK2/16TRK or 4TRM installed in theOfficeServ 7400 system.Pin No. 1 2 3 4 5 6 7 8Function - - - C.O. TIP C.O.RING- - -Figure 6.1 Tip and Ring Connections to Analog Trunk Cards6.2.2 Connecting T1/E1/PRITEPRI/TEPRIa/TEPRI2 boards can be connected to a T1/E1 C.O. circuit through a RJ-45 port. Asshow below, connect a T1/PRI circuit to the T1/E1/PRI port of the OfficeServ 7400 system.Though the TEPRI board supports E1, it is not used in the USA.Using a standard, straight through eight conductor data cable or straight through eightconductor line cord to connect the customer provided Channel Service Unit (CSU) to theTEPRI/TEPRIa/TEPRI2 card as shown in Figure 6.2.NOTES:1. It may be necessary to cut off the CSU end of the cable and attach a different connector tomatch that of the CSU. If possible, this connection should be soldered because goodconnections are critical.2. It is recommended that the CSU be connected to the network interface with a cablesupplied by the CSU manufacturer. If this is not possible or practical, a custom cable has tobe made up. This cable should be made from 22 gauge two pair cable with each pairindividually shielded. It is recommended that the connections on this cable be solderedwherever possible to ensure good connections. The shielding of the cable should beconnected to ground at the CSU end only to prevent a ground loop.P1~P8 Port(RJ-45) |
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