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.
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
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 |
|
| 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 |
|
| 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 |
|
| 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 |
| 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 |
|
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. |
|
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