Cisco Cisco Legacy System Amplifiers 数据表
Scientific-Atlanta, Inc.
http://www.sciatl.com
United States: 4261 Communications Drive, P.O. Box 6850, Norcross, GA 30091-6850; Tel: 800-433-6222; Fax: 770-903-4617
Canada: 7725 Lougheed Highway, Burnaby, BC V5A 4V8; Tel: 604-420-5322; Fax: 604-420-5941
United Kingdom: Home Park Estate, Kings Langley, Herts WD4 8LZ, England; Tel: 44-923-266-133; Fax: 44-192-327-0448
Australia: Unit 2, 2 Aquatic Drive, P.O. Box 292, Frenchs Forest, NSW 2086, Australia; Tel: 61-2-9452-3388; Fax: 61-2-9451-4432
Singapore: 1 Claymore Drive, #08-11 Orchard Towers, Singapore 229594; Tel: 65-733-4314; Fax: 65-733-2706
Hong Kong: Suite 56 & 57, 5/F New Henry House, 10 Ice House Street, Central, Hong Kong; Tel: 852-2522-5059; Fax: 852-2522-5624
Canada: 7725 Lougheed Highway, Burnaby, BC V5A 4V8; Tel: 604-420-5322; Fax: 604-420-5941
United Kingdom: Home Park Estate, Kings Langley, Herts WD4 8LZ, England; Tel: 44-923-266-133; Fax: 44-192-327-0448
Australia: Unit 2, 2 Aquatic Drive, P.O. Box 292, Frenchs Forest, NSW 2086, Australia; Tel: 61-2-9452-3388; Fax: 61-2-9451-4432
Singapore: 1 Claymore Drive, #08-11 Orchard Towers, Singapore 229594; Tel: 65-733-4314; Fax: 65-733-2706
Hong Kong: Suite 56 & 57, 5/F New Henry House, 10 Ice House Street, Central, Hong Kong; Tel: 852-2522-5059; Fax: 852-2522-5624
P/N 590561 Rev A
© 1998 Scientific-Atlanta, Inc.
All rights reserved.
Printed in USA.
0498M
Type 2A-3 System Amplifier III — 5-40/52-750 MHz
ORDERING INFORMATION
Amplifier Module - 1 required
• # 573965 - Type 2A-3 amplifier module with AGC. AGC has
445.25 MHz pilot frequency and manual temperature backoff
control.
control.
Note: Amplifier module also comes configured with reverse
amplifier, reverse combiner, 16.5 dB interstage EQ, interstage
pad, output pads, 0 dB reverse output EQ, 40/51 diplex filters,
and integrated power supply. Power supply has 30 V AC
undervoltage lockout (40 V is field configurable).
amplifier, reverse combiner, 16.5 dB interstage EQ, interstage
pad, output pads, 0 dB reverse output EQ, 40/51 diplex filters,
and integrated power supply. Power supply has 30 V AC
undervoltage lockout (40 V is field configurable).
Housing - 1 required (all have 15 amp capacity)
• # 564390
Uncoated 4-port housing without external test
point access
point access
• # 564391
Coated 4-port housing without external test point
access
access
• # 545435
Uncoated 4-port housing with external test point
access
access
• # 545436
Coated 4-port housing with external test point
access
access
Required Accessories
• Plug-in Pads (attenuators):
– 1 required for forward (1 input)
– 3 required for reverse (2 inputs, 1 output)
– 1 required for AGC only if Main port amplifier output level
– 3 required for reverse (2 inputs, 1 output)
– 1 required for AGC only if Main port amplifier output level
at pilot frequency is NOT 42 dBmV (AGC comes
configured with a 5 dB pad, which is appropriate for
42 dBmV Main output level at pilot frequency).
configured with a 5 dB pad, which is appropriate for
42 dBmV Main output level at pilot frequency).
Available in 0.5 dB steps from 0 to 20 dB. Order Model PP-*
(* denotes pad value), specify value.
(* denotes pad value), specify value.
• Plug-in Forward Input Equalizer, 1 required. Available in 1.5 dB
steps from 0 to 28.5 dB at 750 MHz. Order Model EQ750-*
(* denotes equalizer value); specify value.
(* denotes equalizer value); specify value.
• Plug-in Reverse Output Equalizer, 1 required. Available in 1 dB
steps from 1 to 12 dB at 40 MHz. Order Model EQ40S-*
(* denotes equalizer value), specify value.
(* denotes equalizer value), specify value.
System Amplifier III
I DC
AC Voltage
Type 2A-3
(Amps)
90
85
80
75
70
65
60
55
50
45
40
35
AC Current (A)
1.46
0.58
0.61
0.64
0.66
0.68
0.71
0.74
0.78
0.85
0.94
1.05
1.21
Power (W)
39.9
39.9
39.9
39.5
39.3
39.1
39.1
39.1
40.2
39.7
39.6
39.7
Station Powering Data
Data is based on stations configured for 2-way operation.
• Plug-in Signal Director for auxiliary output, 1 required:
#562406
Jumper
#562414
2-way Splitter
#562419
DC-8
#562420
DC-12
Optional Accessories
• #467351 230 V AC Crowbar Surge Protector
• Plug-in Cable Simulator. Simulates cable losses, creating tilt
• Plug-in Cable Simulator. Simulates cable losses, creating tilt
opposite that of Equalizers. Use in place of Forward Input
Equalizer as needed to maintain proper output tilt in short
spaced locations. Available in 1.5 dB steps from 1.5 dB to
12.0 dB cable loss at 750 MHz. Order Model CS 750-*
(* denotes CS value); specify value.
Equalizer as needed to maintain proper output tilt in short
spaced locations. Available in 1.5 dB steps from 1.5 dB to
12.0 dB cable loss at 750 MHz. Order Model CS 750-*
(* denotes CS value); specify value.
Related Equipment
• #501111 Long Reach Test Point Adapter
• #276982 Reverse Injection Probe (3 dB insertion loss)
• #548771 Pad Insertion/Removal Tool
• #276982 Reverse Injection Probe (3 dB insertion loss)
• #548771 Pad Insertion/Removal Tool
MECHANICAL SPECIFICATIONS
Housing Dimensions
17.3 in. L x 4.8 in. H x 7.8 in. D
438.3 mm L x 122.4 mm H x 198.7 mm D
438.3 mm L x 122.4 mm H x 198.7 mm D
Weight
Housing
9 lbs, 9 oz; 4.4 kg
Module
4 lbs, 13 oz; 2.2 kg
Specifications and product availability are subject to change without
notice.
notice.
Scientific Atlanta and the Scientific-Atlanta logo are registered trademarks
of Scientific-Atlanta, Inc.
of Scientific-Atlanta, Inc.
Surge Resistant is a trademark of Scientific-Atlanta, Inc.