Cisco Compact EGC 93250 Manual

OL-30194-01 1
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

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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.
Terminology
The terms defined below are used in this document. The definitions given are based
on those found in safety standards.
Service Personnel - The term service personnel applies to trained and qualified
individuals who are allowed to install, replace, or service electrical equipment. The
service personnel are expected to use their experience and technical skills to avoid
possible injury to themselves 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 applicable safety standards.
WARNING:
To reduce risk of electric shock, perform only the instructions that are
included in the operating instructions. Refer all servicing to qualified service
personnel only.
Electric shock can cause personal injury or even death. Avoid direct contact with
dangerous voltages at all times.
Know the following safety warnings and guidelines:
Only qualified service personnel are allowed to perform equipment installation or
replacement.
Only qualified service personnel are allowed to remove chassis covers and access
any of the components inside the chassis.
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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).
Make sure the mounting surface or rack is stable and can support the size and
weight of this equipment.
Pedestal, Service Closet, Equipment Room or Underground Vault Installation
WARNING:
Avoid the possibility of personal injury. Ensure proper handling/lifting
techniques are employed when 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’s data sheet to avoid the possibility of equipment overheating.
Ensure the installation site and operating environment is compatible with the
equipment’s International Protection (IP) rating specified in the equipment’s data
sheet.
Connection to Network Power Sources
Refer to this equipment’s specific installation instructions in this manual or in
companion manuals in this series for connection to network ferro-resonant AC
power sources.
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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.
CAUTION:
RF connectors and housing seizure assemblies can be damaged if shunts are
not removed from the equipment before installing or removing modules from
the housing.
Equipotential Bonding
If this equipment is equipped with an external chassis terminal marked with the IEC
60417-5020 chassis icon ( ), the installer should refer to CENELEC standard EN
50083-1 or IEC standard IEC 60728-11 for correct equipotential bonding connection
instructions.
General Servicing Precautions
WARNING:
Avoid electric shock! Opening or removing this equipment’s cover may
expose you to 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 - Servicing is required when this equipment has been damaged in any
way, such as power supply cord or plug is damaged, liquid has been spilled or
objects have fallen into this equipment, this equipment has been exposed to rain or
moisture, does not operate normally, or has been dropped.
Wristwatch and Jewelry - For personal safety and to avoid damage of this
equipment during service and repair, do not wear electrically conducting objects
such as a wristwatch or jewelry.
Lightning - Do not work on this equipment, or connect or disconnect cables,
during periods of lightning.
Labels - Do not remove any warning labels. Replace damaged or illegible warning
labels with new ones.
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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.
Cleaning - Use a damp cloth for cleaning.
Safety Checks - After service, assemble this equipment and perform safety checks
to ensure it is safe to use before putting it back into operation.
Electrostatic Discharge
Electrostatic discharge (ESD) results from the static electricity buildup on the human
body and other objects. This static discharge can degrade components and cause
failures.
Take the following precautions against electrostatic discharge:
Use an anti-static bench mat and a wrist strap or ankle strap designed to safely
ground ESD potentials through a resistive element.
Keep components in their anti-static packaging until installed.
Avoid touching 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 with applicable safety and
EMC regulations, codes, and standards to ensure safe operation in its intended
environment. Refer to this equipment's data sheet for details about regulatory
compliance approvals.
Do not make modifications to this equipment. Any changes or modifications could
void the user’s authority to operate this equipment.
Modifications have the potential to degrade the level of protection built into this
equipment, putting people and property at risk of injury or damage. Those persons
making any modifications expose themselves to the penalties arising from proven
non-compliance with regulatory requirements and to civil litigation for
compensation in respect of consequential damages or injury.
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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.
Ensure compliance with cable/connector specifications and associated installation
instructions where given elsewhere in this manual.

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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. If needed, trim the connector with wire cutters.
Please Notice
This product can only be setup with a handheld terminal type A91200.11 or with a
handheld terminal type A91200.10 containing the necessary driver for the EGC
amplifier. New drivers can be installed by means of download kit A91210.10.
Plug-in Units
The following plug-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 path not is used.
Plug-in reverse equalizer type 74141 with the required filter frequency.
Determines the frequency range for the built-in active reverse path.
AUX plug-in field. In order to adjust the amplifiers to the cable, it may be
necessary to insert an equalizer type 74100-xxx at the input. Alternatively an
inverse equalizer type 74190-xx or attenuator type 77150-xx can be used.
If no equalization/attenuation is requested, insert 0 dB link type 74069.
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Installation InstructionsInstallation Instructions, Continued
DC
DC
230 V AC
AC or DC in
TX RX
0-18 dB 0-18 dB
0-15 dB
-20dB
TP
-20dB
TP
-20dB
TP
IN OUT OUT 2 OUT 1

0-15 dB
-20dB
TP
0-6 dB
-20dB
-33dB
0-18 dB
AUX
Rev.Eq. 0-20 dB
µ-
Controller Transponder
20/25 dB
Figure 2: Block diagram for the amplifier type 93250/93251
Power Supply
230 V Mains Supply
The amplifier has factory mounted mains cable and plugs, which according to
approval provisions 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 certified to provide basic insulation between the utility mains
supply and the network AC supply voltage in accordance with an applicable safety
standard such as IEC 60065, IEC 600950-1 or equivalent and local electrical
regulations.
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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
value (24 V or 35 V) thus, 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 pressing the button ”5” for
approximately 1 sec. the terminal jumps to the menu where the output equalizer can
be is changed.
The menu numbers can also be used as short cuts. Refer to the following menus
structure (Fig. 3) to determine the number for the required menu.
For example: Press ”35” and the handheld terminal will jump to the menu where the
reverse switch can be set.
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10 OL-30194-01
Installation InstructionsInstallation Instructions, Continued
Or use the following buttons:
Figure 3. Menu Structure
Continued on next page
or
*
Is used to navigate to the
submenus and to open a menu
for editing. The value can then
be changed. Additionally, the
button can be used to reject a
value entered by the keypad.
or
*
Is used to navigate to the root
menus and to delete wrong
digits when a menu is open
for editing. Additionally, the
button can be used to reject a
value entered by the keypad.
•0-
4 5 6
1 2 3
8 97
All numbers, ”.” and ”-” are
used to enter values. The
numbers can also be used as
short cuts.
Is used to navigate through
menus at the same level and to
select the settings in some
menus. Additionally, these
buttons can be 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
22 + 5.0 dB
Rev. Input Att 1
31 + 5.0 dB
From Product
51 To Product
52
Supply
4
Identification
6
Restore Default
53
Interstage Att
23 + 5.0 dB
Serial Number
62 000423F0434
Time in Service
63 2 days
Software ID
64 7003460-A
Terminal SW
65 530445
Rev. Input Att 2
32 + 5.0 dB
Rev. Output Att
33 + 5.0 dB
Rev. Output EQ
34 + 5.0 dB
Rev. Switch
35 0 dB
Transponder
66 OK
Lid Status
67 Open
Configuration
1 Fw 40dB/862M
Reverse Gain
13 25 dB
Toggling
Interstage Att 2
24 + 5.0 dB
Output EQ
25 + 5.0 dB
Not avaiable for
this amplifier
**
**
**
*
*
* A91200.10
DC Supply
42 0.0 V

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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. 2. The level measured by the transponder will be attenuated by
approximately 33 dB relative to the output signal at output. The transponder
transmitter level is adjusted to the same level as the other reverse signals. The level
from the transponder will be attenuated by approximately 20 dB at the reverse path
since 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
terminal 91200.
The transponder can be set with:
SMC ID
Transponder address
1 to 65535
TX FREQ
Transmit frequency
5 to 65 MHz
RX FREQ
Receive frequency
45 to 174 MHz
TX LEVEL
Transmit level
84 to 110 dBµV
BAUD RATE
Data speed
9.6-19.2-38.4 kbps
MODE
Transponder mode
IEP
Accessories
Test adapter, F type A71004
Fuses
Fuse type
Description
T3.15H250V
3.15AT, for 230 V AC
T5AH250V
5AT, for 24 to 65 V
T10AL250V
10 AT, for input/output port
Notes: All fuses must be replaced by a similar type.

12 OL-30194-01
For Information
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Product and service availability are subject to change without notice.
© 2008, 2013 Cisco and/or its affiliates. All rights reserved.
August 2013
Part Number OL-30194-01