Forward and reverse headend driver amplifiers (117 pages)
Summary of Contents for Cisco Compact EGC 93250
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.
Important Safety Instructions Read and Retain Instructions Carefully read all safety and operating instructions before operating this equipment, and retain them for future reference. Follow Instructions and Heed Warnings Follow all operating and use instructions. Pay attention to all warnings and cautions in the operating instructions, as well as those that are affixed to this equipment.
Important Safety Instructions, Continued Equipment Placement WARNING: Avoid personal injury and damage to this equipment. An unstable mounting surface may cause this equipment to fall. To protect against equipment damage or injury to personnel, comply with the following: Install this equipment in a restricted access location (access restricted to service personnel).
Important Safety Instructions, Continued AC Power Shunts AC power shunts may be provided with this equipment. Important: The power shunts (where provided) must be removed before installing modules into a powered housing. With the shunts removed, power surge to the components and RF-connectors is reduced.
Important Safety Instructions, Continued Covers - Do not open the cover of this equipment and attempt service unless instructed to do so in the instructions. Refer all servicing to qualified service personnel only. Moisture - Do not allow moisture to enter this equipment. ...
Important Safety Instructions, Continued Accessories Use only attachments or accessories specified by the manufacturer. Electromagnetic Compatibility Regulatory Requirements This equipment meets applicable electromagnetic 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.
Installation Instructions Mounting The amplifier should be mounted vertically with the cable input underneath, to secure best possible operating temperature conditions. Use a 4 mm Allen key to tighten the screw in the lid to 5 Nm. The pin length of the PG 11 cable connector at input and output is shown on the cover plate of the amplifier.
Installation InstructionsInstallation Instructions, Continued 230 V AC AC or DC in 0-18 dB 0-18 dB 0-6 dB 0-15 dB µ- Transponder Controller -33dB -20dB 0-18 dB Rev.Eq. 20/25 dB 0-20 dB 0-15 dB -20dB -20dB -20dB -20dB OUT 2 OUT 1 Figure 2: Block diagram for the amplifier type 93250/93251 Power Supply...
Installation InstructionsInstallation InstructionsInstallation Instructions, Continued AC Pass On delivery, ports are provided with insulating fuses. Desired AC pass is obtained by turning the fuse holder after connecting the cable or before disconnecting, to prevent damage of cable connectors. Caution: Permanent excess of maximum remote current may cause damage. Low Voltage Lockout For all coax line powered power supplies an undervoltage switch type 75018-xx can be delivered that switches off the power supply if the voltage drops below the rated...
Installation InstructionsInstallation Instructions, Continued Or use the following buttons: Is used to navigate to the submenus and to open a menu for editing. The value can then Configuration 1 Fw 40dB/862M be changed. Additionally, the Toggling button can be used to reject a Configuration Forward Gain 1 Rv 25dB...
Installation InstructionsInstallation Instructions, Continued ROSA Element Management System Monitoring of the amplifier requires the installation of the transponder type 91051 in the amplifier. This transponder will communicate back to the headend by means of the reverse path. The transponder signal is received at the test point at output. Refer to Fig.
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