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Cisco Compact EGC Amplifier Model 93250-93251 Data Sheet

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Description

The Cisco® Compact Electronic Gain Control (EGC) Amplifier Model 93250-93251 combines powerful performance with ease of use to meet operators’ growing demands for advanced products. It provides advanced features to help reduce operating costs by streamlining amplifier deployment and configuration, and it is especially well suited for network upgrades because it provides increased reverse gain.

Figure 1. Cisco Compact EGC Amplifier Model 93250-93251

The amplifier (Figure 1) performs to 1 GHz in the forward path, and it can be configured electronically, using a handheld programmer terminal, for rapid initial setup or for adjustments that are needed as network requirements shift. All settings can be done without interrupting service, an especially important capability in networks that deliver voice over IP (VoIP) services. Settings for this EGC amplifier can be established or modified using a handheld programmer terminal. To streamline configuration, settings from one amplifier can be uploaded to the handheld programmer terminal for downloading to other amplifiers. Different forward-gain settings can be obtained in the amplifier, allowing it to support several different applications within the network, so a single amplifier model can help reduce inventory and costs.

The number of amplifier plug-ins is reduced to a minimum to help operators keep inventory and costs down. The full-range electronic attenuators and equalizers offer improved versatility and make it possible to achieve the same adjustment range as with conventional plug-in or potentiometer solutions. Plug-in diplex filters are used to determine the forward and reverse band split.

To meet future demands for more bandwidth, the amplifier offers an electronic 862 MHz to 1 GHz field-programmable bandwidth extension, as well as a reverse path that can be upgraded to 200 MHz.

The Cisco Compact EGC Amplifier Model 93250-93251 can be configured with a Cisco status-monitoring transponder (meeting EuroDOCSIS and DOCSIS standards) to provide remote monitoring of critical amplifier parameters and remote control of the built-in three-state reverse switch. All amplifier settings are remotely addressable using a web GUI or Simple Network Management Protocol (SNMP) to help reduce truck rolls and associated costs.

Features

Gallium arsenide field-effect transistor (GaAsFET) gain block technology for improved distortion and noise performance

8A power passing

Improved output level and flatness

6 kV surge protection

Plug-in, self-contained diplex filters for easy upgrade of reverse path bandwidth

Easy plug-in mounting of transponder (no change of lid nor use of test points for cable connection)

Optional status monitoring and control

Integrated three-state reverse switch (on/-6 dB/off) allows the reverse input to be isolated for noise and ingress troubleshooting

Compact EuroDOCSIS/DOCSIS transponder supported

Figure 2. Block Diagram and Overview

Block Diagram

Overview

Specifications

Table 1 provides product specifications for the Cisco Compact EGC Amplifier Model 93250-93251.

Table 1. Product Specifications

Forward

Units

Description

Notes

Frequency range

MHz

47 to 862

47 to 1000

1

Gain

dB

Selectable 28, 34, 40

Flatness

dB

± 0.50

± 0.75

2

Input attenuator

dB

0 to 18 in 0.5 dB step

Input equalizer

dB

0 to 18 in 0.5 dB step

Interstage attenuator

dB

0 to 6 in 0.5 dB step

Interstage pre-equalizer

dB

0 to 15 in 0.5 dB step

Input test point

dB

–20 ± 1.5

Output test point

dB

–20 ± 0.50

–20 ± 0.75

Number of outputs

-

1 or 2

3

Return loss

Input, output port
Input, output test point

dB

> 18

> 20

2, 4

Noise figure

dB

7.0

5

Signal feed through loss

dB

£ 1.0

Output Level @ 42 ch CENELEC

Composite triple beat (CTB) ≥60 dB
Composite second order (CSO) ≥60 dB

dBµV

114

114

6, 7

Reverse

Units

Description

Notes

Frequency range

MHz

5 to 65

5 to 200

1

Gain

dB

Selectable 20, 25

Flatness

dB

± 0.5

± 0.75

Input attenuators

dB

0 to 20 in 0.5 dB step

Output attenuators

dB

0 to 18 in 0.5 dB step

Output equalizer

dB

0 to 15 in 0.5 dB step

Test point

dB

–20 ± 0.5

Signal injection point

dB

–20 ± 0.5

Return loss at test point

dB

> 20 @ 5 to 10 MHz

> 23 @ 10 to 200 MHz

4

Return loss at input and output

dB

> 18

4, 8

Output level

IMD3 ≥ 60 dB
IMD2 ≥ 60 dB

dBμV

117

112

111

107

Three-state reverse switch, EM controlled

-

On/-6 dB/off

Noise figure

dB

£ 7.5

£ 8.0

* Unless otherwise noted, all data given are for the amplifier with standard configuration for 1 output.

General Performance

Units

Description

Notes

Transponder receive level attenuation

dB

–33 ± 0.75

Transponder transmit insertion loss

dB

–20 ± 0.75

Surge protection

kV, µs

6, 1.2/50

9

Enclosure category

-

IP 66

Emission, EN 50083-2

dBpW

< 20

Screening

dB

> 85

Connectors, inputs, and outputs (reduction)

-

PG 11 (5/8 in.)

Test point

-

F-connector, female

Electrical

65V coaxial line powering (rms, sine)

VAC

24 to 65

230V mains line powering (rms, sine)

VAC

187 to 250

Power consumption, network powered

W

25.5 with built-in reverse amp

27.5 with plug-in transponder

Current draw

A AC

See table

10

Maximum current, inputs and outputs

A AC

8

Maximum current, local input

A AC

15

Hum modulation

dB

£ –65

Compliance and Safety

Electrical safety

-

EN 50083-1

EN 60065

IEC 65

EMC emissions

-

EN 50083-2

Environmental

Operating temperature range

°C

°F

–20 to 55

–4 to 131

Mechanical

Housing dimensions model 93250

(W x H x D)

mm

in.

230 x 190 x 120

9.1 x 7.5 x 4.7

Housing dimensions model 93251

(W x H x D)

mm

in.

230 x 155 x 95

9.1 x 6.1 x 3.7

Packaging dimensions model 93250

(W x H x D)

mm

in.

270 x 285 x 130

10.6 x 11.2 x 5.1

Packaging dimensions model 93251

(W x H x D)

mm

in.

270 x 285 x 100

10.6 x 11.2 x 3.8

Weight model 93250

kg

lb

3.0

6.6

Weight model 93251

kg

lb

2.7

6.0

Notes:
1. Frequency range depends on plug-in diplex filters and amplifier settings
2. With diplex filters
3. Two outputs that can be activated by using splitter or directional coupler
4. At 40 MHz red, 1.5 dB/octave
5. Maximum gain, no equalization
6. With 6 dB interstage EQ
7. Change in CTB, CSO, and noise figure with different interstage attenuation, relative to 0 dB

40 dB

CTB

CSO

Noise Figure

2 dB

1

2

0.1

4 dB

2

2

0.2

6 dB

2

2

0.3

34 dB

CTB

CSO

Noise Figure

2 dB

2

1

0.1

4 dB

3

1

0.2

6 dB

4

1

0.3

28 dB

CTB

CSO

Noise Figure

2 dB

1

1

0.2

4 dB

3

1

0.6

6 dB

4

1

1.0

8. Start from 7 MHz
9. According to IEC60 on input and output with diplex filters
10. AC current draw is tested with 50-meter coaxial cable

AC Input Voltage (V)

24

30

35

40

45

50

55

60

65

AC Current Draw (A)

Without transponder

1.24

1.00

0.87

0.78

0.71

0.65

0.60

0.57

0.54

With transponder

1.29

1.04

0.90

0.79

0.73

0.66

0.62

0.58

0.56

Ordering Information

To place an order, visit the Cisco Ordering Home Page, and use the information provided in Table 2.

Table 2. Ordering Information for the Cisco Compact EGC Amplifier Model 93250-93251

Unconfigured Amplifier

Part Number

Cisco Compact EGC Amplifier, 862MHz/1GHz, 28/40dB, 230V Electronic adjustable Att & Eq, PG11 at input/output, Plug-in Xpdr

A93250.10240

Cisco Compact EGC Amplifier, 862MHz/1GHz, 28/40dB, 230V Electronic adjustable Att & Eq, PG11 at input/output, Plug-in Xpdr

A93250.10340

Cisco Compact EGC Amplifier, 862MHz/1GHz, 28/40dB, 230V, Electronic adjustable Att & Eq, PG11 at input/output, Plug-in Xpdr

A93251.10240

Cisco Compact EGC Amplifier, 862MHz/1GHz, 28/40dB, 65V, Electronic adjustable Att & Eq, PG11 at input/output, Plug-in Xpdr

A93251.10340

Preconfigured Amplifier

Part Number

Cisco Compact EGC Amplifier, 862MHz/1GHz, 28/40dB, 230V; Elec adj Att & Eq, PG11 at in/out, Plug-in Xpdr; Configured for 65MHz rev;0dB IN;0dB OUT;0dB AUX

A93250.1024065

Cisco Compact EGC Amplifier, 862MHz/1GHz, 28/40dB, 65V; Elec adj Att & Eq, PG11 at in/out, Plug-in Xpdr; Configured for 65MHz rev;0dB IN;0dB OUT;0dB AUX

A93250.1034065

Cisco Compact EGC Amplifier, 862MHz/1GHz, 28/40dB, 230V; Elec adj Att & Eq, PG11 at in/out, Plug-in Xpdr; Configured for 65MHz rev;0dB IN;0dB OUT;0dB AUX

A93251.1024065

Cisco Compact EGC Amplifier, 862MHz/1GHz, 28/40dB, 65V, Elec adj Att & Eq, PG11 at in/out, Plug-in Xpdr; Configured for 65MHz rev;0dB IN;0dB OUT;0dB AUX

A93251.1034065

The following required accessories must be ordered separately.

Required Accessories

Part Number

Plug-in Diplex Filter: 2 required, choose from the following options:

30/47 MHz split
42/54 MHz split
65/87 MHz split
85/105 MHz split



A75130.103047

A75130.104254

A75130.106587

A75130.1085105

Plug-in Reverse Equalizer: 1 required, choose from the following options:

30 MHz reverse band
42 MHz reverse band
65 MHz reverse band
85 MHz reverse band



A74141.1030

A74141.1042

A74141.1065

A74141.1085

Plug-in at input: 1 required, choose from the following options:

1 link 0 dB at input
1 splitter 3.5/3.5 dB at input
1 splitter 2/6 at input
1 splitter 1/10.5 dB at input
1 splitter 0.6/14 dB at input



A74089.10

A77041.10

A77042.10

A77043.10

A77044.10

Plug-in at AUX: 1 required, choose from the following options:

1 link 0 dB
1 attenuator 2, 4, 6, 8, 10 or 12 dB (xx=02, 04, 06, 08, 10 or 12)
1 equalizer/862 MHz Tilt 3, 6, 9, 12, 15 dB
1 inverse equalizer 862 MHz -3, -6, -9 or -12 dB (xx=03, 06, 09 or 12)



A74069.10

A77150.100xx

A74100.10xxx

A74190.10xx

Plug-in at output: 1 required, choose from the following options:

1 link 0 dB at output
1 splitter 3.5/3.5 dB at output
1 splitter 2/6 at output
1 splitter 1/10.5 dB at output
1 splitter 0.6/14 dB at output



A74069.10

A77041.10

A77042.10

A77043.10

A77044.10

For more information on these accessories, see the Cisco Compact Amplifier and Node Accessories (P/N: A541441) data sheet
http://www.cisco.com/en/US/prod/collateral/video/ps8806/ps8918/ps8921/product_data_sheet0900aecd806c5ba9.pdf.

* Please note that the required accessories are only relevant for unconfigured amplifiers.

The following optional accessories for Cisco Compact EGC Amplifier Model 93250-93251 amplifiers may be ordered separately.

Optional Accessories

Part Number

Voltage Lock-Out Module, 24 or 35V*

A75018.00xx

Plug-in Compact EuroDOCSIS/DOCSIS Transponder

4038498

For additional information on status-monitoring transponders, see the Cisco Compact Transponder (P/N: 7006287).

http://www.cisco.com/en/US/prod/collateral/video/ps8806/ps9048/ps9066/7021141_a.pdf.

* The 35V lock-out module is standard with all 90V power supplies.

For More Information

http://www.cisco.com