STS 3192−9L ASPR Office Repeater
■Document Purpose
▲This document provides general information for the Charles Industries 3192−9L (Issue 4) Office Repeater.
■Equipment Function
▲The 3192−9L provides T1 span regeneration and powering in STS mountings. The fully temperature hardened (−40 to 149F [−40 to 65C] ambient temperature range) 3192−9L can be located in central offices, and outdoor or customer premises cabinets and CEVs.
■Equipment Features
▲The 3192−9L provides the following features:
◆An automatic span regulator (ASPR) to derive the necessary span line voltage (10 to 260Vdc) to maintain a 60mA loop from −48Vdc office battery. The ASPR automatically compensates for variations in cable, repeater tolerances, temperature and routing.
◆A wide range automatic line build-out (ALBO) that will regenerate incoming signals that have experienced from 0 to 35dB of loss. No optionable padding of the incoming signal is required.
◆A transmit side LBO which consists of three cascaded pad sections of 4.5, 7.5, and 15dB. Allowing transmit side loses adjustable for 4.5, 7.5, 12.0, 15.0, 19.5, 22.5, and 27.0dB.
◆A fault locate output. A resistive network on the secondary of the fault locate transformer provides the proper termination to the repeater when fault locate filters are not being deployed, eliminating the need to short the fault locate output when not in use.
◆Supports spans operating at 60mA. Provision is made for bidirectional span powering only. The design of the T1 span, including repeater spacing and cable pair selection, should be done according to standard T1 span design or local company practice. Bell Operating Companies can use the DILEP II System described in Bellcore Practice BR-902-200-120.
◆Has an option switch that controls the maximum voltage delivered to the span. When the option is set for −130 volts, the maximum DC simplex span resistance is 2100 ohms. When the module is optioned for +/−130 V (260 volts total), the maximum DC simplex resistance is 4300 ohms. It is recommended that −130V power be utilized wherever possible, eliminating the possible electrolysis effect of positive voltages when the unit is optioned for +/−130 volts. Consideration should be given to back-powering spans that exceed the 2100 ohm limit of the −130V option.
◆When the 3192−9L’s internally-located fuse opens, the front-panel-mounted FA LED will illuminate and −48 volts will appear at the Fuse Alarm output, pin 10. The fuse will only open if the module is damaged and is not field replaceable.
◆Front-panel-mounted pin jacks for measuring span current and voltage.
◆Front-panel-mounted bantam jacks that provide split and monitor access to the DSX side of the unit.
◆Switch selectable DSX pre-equalization for up to 655 feet of 22 gauge cable.
◆Integral receive side T1 performance monitor, with an adjustable BPV threshold and loss-of-signal detector.
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User's Guide |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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July 2006 |
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Issue 4 |
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105 KB |
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