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OL-30194-01 

 

 

Compact EGC Amplifier 93250 and 93251 
Installation and Setup Instructions 

Application 

The Compact Amplifier type 93250/93251 has one active output and is used in trunk 
and distribution applications. The amplifier can be monitored via the compact 
transponder and the ROSA

 Element Management System. All equalizers and pads 

are electronic and can be set with the handheld terminal type 91200. The plug-in 
filters in the reverse path allow flexible choice of frequency range for both forward 
and reverse path. 

 

Figure 1: Amplifier overview 

 

 

Summary of Contents for 93250

Page 1: ...d in trunk and distribution applications The amplifier can be monitored via the compact transponder and the ROSA Element Management System All equalizers and pads are electronic and can be set with the handheld terminal type 91200 The plug in filters in the reverse path allow flexible choice of frequency range for both forward and reverse path Figure 1 Amplifier overview ...

Page 2: ...ves and others due to hazards that exist in service and restricted access areas User and Operator The terms user and operator apply to persons other than service personnel Ground ing and Earth ing The terms ground ing and earth ing are synonymous This document uses ground ing for clarity but it can be interpreted as having the same meaning as earth ing Electric Shock Hazard This equipment meets ap...

Page 3: ... working in confined spaces with heavy equipment Ensure this equipment is securely fastened to the mounting surface or rack where necessary to protect against damage due to any disturbance and subsequent fall Ensure the mounting surface or rack is appropriately anchored according to manufacturer s specifications Ensure the installation site meets the ventilation requirements given in the equipment...

Page 4: ...o dangerous voltages CAUTION These servicing precautions are for the guidance of qualified service personnel only To reduce the risk of electric shock do not perform any servicing other than that contained in the operating instructions unless you are qualified to do so Refer all servicing to qualified service personnel Be aware of the following general precautions and guidelines Servicing Servicin...

Page 5: ... electronic components when installing a module Fuse Replacement To replace a fuse comply with the following Disconnect the power before changing fuses Identify and clear the condition that caused the original fuse failure Always use a fuse of the correct type and rating The correct type and rating are indicated on this equipment Modifications This equipment has been designed and tested to comply ...

Page 6: ...c compatibility EMC regulatory requirements Refer to this equipment s data sheet for details about regulatory compliance approvals EMC performance is dependent upon the use of correctly shielded cables of good quality for all external connections except the power source when installing this equipment Ensure compliance with cable connector specifications and associated installation instructions whe...

Page 7: ... in units are necessary Input splitter Link type 74089 is applied if the loop port is not used Output splitter If an asymmetric splitter bridger is used the largest attenuation at the output 2 OUT 2 is obtained If only a signal at output 1 OUT 1 is requested link type 74069 is used Diplex filter Two diplex filters type 75130 with the required split frequency Use two links type 74089 if the reverse...

Page 8: ...ions may not be altered The power unit is double insulated and supplies only this single amplifier When the power unit DC voltage indicator lights the power unit is supplying correct DC voltage Remote Supply 24 to 65 V AC The amplifier can be supplied with 24 to 65 V AC either via coaxial cables max 8 A or directly to the AC input max 15 A In this case the network AC supply apparatus shall be cert...

Page 9: ...us the network is not damaged due to increased current consumption Setting up the amplifier The handheld terminal type 91200 is used to set up the amplifier Use the menu structure in the following table to navigate through the different menus Shortcuts Use the short cuts shown on the cover plate to do a fast selection of the required menu For example The output equalizer is marked with 5 By pressi...

Page 10: ... used to fine tune some values E N T E R Is used to confirm a setting or a change In the menu Copy Parameters the setting of an amplifier can be saved menu 51 and downloaded to another amplifier menu 52 Remote Supply 41 Not Connected Model Number 61 A93240 10238 Input EQ 21 5 0 dB Copy Parameters 5 Forward Gain 11 28 dB Configuration 1 Rv 25dB Reverse 3 Forward 2 Forward Freq 12 862 MHz Input Att ...

Page 11: ...ce it is inserted with a 20 dB coupler With a transponder it is possible to monitor and control different parameters in the amplifier As seen in Fig 2 the built in reverse path switch can be controlled in order to locate ingress noise in the reverse path This can be useful in the search for errors in larger networks Programming of a Compact Transponder type 91051 is done by using the handheld term...

Page 12: ...1 3845 9154 ext 109 Mexico Central America Caribbean Mexico Telephone 52 55 50 81 8425 All other Latin America countries Argentina Telephone 770 236 5662 Americas Headquarters Cisco Systems Inc 170 West Tasman Drive San Jose CA 95134 1706 USA http www cisco com Tel 408 526 4000 800 553 6387 Fax 408 527 0883 This document includes various trademarks of Cisco Systems Inc Please see the Notices secti...

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