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Cisco uBR7100 Series Hardware Installation Guide
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Title Pages
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Preface
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Chapter 1 - Product Overview
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Chapter 2 - Preparing for Installation
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Chapter 3 - Installing Cisco uBR7100 Series Universal Broadband Routers
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Chapter 4 - System Startup
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Chapter 5 - Troubleshooting the Installation
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Chapter 6 - Maintenance
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Appendix A - System Specifications
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Appendix B - Manufacturers for Headend Provisioning Requirements
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Appendix C - Cable Specifications
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Appendix D - Frequency Allocation Tables
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Appendix E - Site Log
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Index
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Table Of Contents
DOCSIS Upstream and Downstream Specifications
EuroDOCSIS Upstream and Downstream Specifications
Integrated Upconverter Specifications
System Specifications
This appendix provides the following specifications for the Cisco uBR7100 series universal broadband routers:
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DOCSIS Upstream and Downstream Specifications
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Physical Specifications
Table A-1 Physical Specifications and Power Requirements
Dimensions (H x W x D)
3.5 x 17.5 x 18.25 in. (8.89 x 44.45 x 46.36 cm)
Weight
~ 32 lb (14.5 kg)
Heat dissipation
370 W (1262 Btu1 )
Input voltage, AC power supply
Current
Frequency
Power factor
Input AC power100 to 240 VAC
5 to 2.5 A2
50/60 Hz
0.80 to 0.95
525 W3 (maximum)AC-input cables
18-QEG4 3-wire cable, with a 3-lead IEC-320 receptacle on the power supply end, and a country-dependent plug on the power source end
Airflow
~120 cfm4
Temperature
32 to 104°F (0 to 40°C) operating; -4 to 149°F (-20 to 65°C) nonoperating
Humidity
10 to 90% noncondensing
LAN interfaces
2 Ethernet 10BASE-T/100BASE-TX autosensing (RJ-45)
Console port
Asynchronous serial (RJ-45)
Auxiliary port
Asynchronous serial (RJ-45) with hardware flow-control
WAN interface options
For a list of supported port adapters, refer to the "Port Adapters" section on page 1-7 and Table 1-1 on page 1-8.
Note
Recommended minimum software requirements
Cisco IOS Release 12.1(5)EC or later release for DOCSIS operations
Cisco IOS Release 12.1(7)EC or later release for EuroDOCSIS operations
Compliance marking
CE, CSA, TUV, FCC, ICES, VCCI, AS/NZS, BSMI
Safety
UL 1950, CSA 22.2 No. 950, EN60950, ACA TS001, AS/NZS 3260, IEC 60950
EMC Emissions5
CFR 47 part 15:1998 Class B; EN55022:1994 [incl AMD1+AMD2] Class B; AS/NZS 3548:1995; CISP22:1997 Class B; VCCI:1997 ClassB; ICES-003:1994; CNS13438:1997 Class B
EMC Immunity
EN61000-3-2:1995; EN61000-3-2:19956
1 Btu = British thermal units.
2 A = amperes.
3 W = watts.
4 cfm = cubic feet per minute.
5 EMC = electromagnetic compatibility.
6 Refer to Regulatory Compliance and Safety Information for the Cisco uBR7100 and Cisco uBR7100E Series Universal Broadband Routers for more information.
Table A-2 Cisco uBR7100 Series Cable Interface Specifications
uBR7111
64 QAM
QPSK
+35 to +43 dBmV
uBR7114
64 QAM
QPSK
+35 to +43 dBmV
uBR7111E
64 QAM
QPSK
+33 to +38 dBmV
uBR7114E
64 QAM
QPSK
+33 to +38 dBmV
1 This table shows the output from the DS0 downstream port, which does not use the integrated upconverter.
RF Specifications
Table A-4 Typical RF Downstream Modulation
6 MHz
27.0 Mbs
38.0 Mbs
8 MHz
38.0 Mbs
56.0 Mbs
DOCSIS Upstream and Downstream Specifications
The recommended settings listed in the following tables are based on a hybrid fiber-coaxial cable (HFC) network in which the digital signal is carried 10 dB below the adjacent analog video channel. If the digital signal on your network is carried 6 dB below the adjacent analog video channel, add 4 dB to the recommended settings in Table A-5Table A-5 and Table A-6.
Table A-5 DOCSIS Cable Upstream RF Specifications
Frequency range
5 to 42 MHz
5 to 42 MHz
Transit delay, CMTS to furthest customer
< 0.800 msec
< 0.800 msec
Carrier to noise ratio
Carrier to ingress power ratio
> 25 dB
> 25 dB
Carrier to interference ratio
Carrier hum modulation
< -23 dBc6 (7%)
< -23 dBc (7%)
Burst noise
< 10 msec
< 10 msec
Amplitude ripple
0.5 dB/MHz
0.5 dB/MHz
Group delay ripple
200 ns/MHz
200 ns/MHz
Micro reflections (single echo)
-10 dBc @ < 0.5 msec
-20 dBc @ < 1.0 msec-10 dBc @ < 0.5 msec
-20 dBc @ < 1.0 msecSeasonal/diurnal signal level variation
< 8 dB
< 8 dB
Carrier to second order
< -50 dBc
< -50 dBc
From cable modem (upstream)
+8 to +58 dBmV (QPSK)
+8 to +55 dBmV (16 QAM)+8 to +58 dBmV (QPSK)
+8 to +55 dBmV (16 QAM)Input amplitude to modem card (upstream)
-16 to +26 dBmV
-10 to +25 dBmV
Signal as relative to adjacent video signal
-6 to -10 dBc
-6 to -10 dBc
1 DOCSIS specifications are baseline settings for a DOCSIS-compliant, two-way data-over-cable system.
2 Minimum settings are slightly different than the DOCSIS settings to account for cable system variations over time and temperature. Using these settings should increase the reliability of DOCSIS-compliant, two-way data-over-cable systems.
3 QPSK = Quadrature Phase-Shift Keying: a method of modulating digital signals onto a radio-frequency carrier signal using four phase states to code two digital bits.
4 These settings are measured relative to the digital carrier. Add 6 or 10 dB, as determined by your company's policy and derived from the initial cable network setup, relative to the analog video signal.
5 QAM = Quadrature Amplitude Modulation: a method of modulating digital signals onto a radio-frequency carrier signal involving both amplitude and phase coding.
6 dBc = decibels relative to carrier.
Table A-6 DOCSIS Cable Downstream RF Specifications
RF channel spacing (bandwidth)
6 MHz
6 MHz
Transit delay3
0.800 msec
0.800 msec
Carrier to noise ratio
Carrier to ingress power ratio
> 35 dB
> 35 dB
Composite triple beat distortion
< -50 dBc6
< -50 dBc
Carrier to second order
< -50 dBc
< -50 dBc
Cross-modulation level
< -40 dBc
< -40 dBc
Amplitude ripple
0.5 dB in 6 MHz
0.5 dB in 6 MHz
Group delay
75 ns7 in 6 MHz
75 ns in 6 MHz
Micro reflections bound for dominant echo
-10 dBc @ < 0.5 msec
-15 dBc @ < 1.0 msec
-20 dBc @ < 1.5 msec
-30 dBc @ < 1.5 msec-10 dBc @ < 0.5 msec
-15 dBc @ < 1.0 msec
-20 dBc @ < 1.5 msec
-30 dBc @ < 1.5 msecCarrier hum modulation
< -26 dBc (5%)
< -26 dBc (5%)
Burst noise
< 25 msec
< 25 msec
Seasonal/diurnal signal level variation
8 dB
8 dB
Signal level slope (50 to 750 MHz)
16 dB
16 dB
Maximum analog video carrier level
(at CM)+17 dBmV
+17 dBmV
Minimum analog video carrier level
(at CM)-5 dBmV
-5 dBmV
From headend
-15 to +15 dBmV
-15 to +15 dBmV
Signal as relative to adjacent video signal
-6 or -10 dBc
-6 or -10 dBc
1 DOCSIS specifications are baseline settings for an DOCSIS-compliant, two-way data-over-cable system.
2 Minimum settings are slightly different than the DOCSIS settings to account for cable system variations over time and temperature. Using these settings should increase the reliability of DOCSIS-compliant, two-way data-over-cable systems.
3 Transit delay is defined as the "round trip" from the cable headend to the furthest customer and back.
4 QAM = Quadrature Amplitude Modulation: a method of modulating digital signals onto a radio-frequency carrier signal involving both amplitude and phase coding.
5 These settings are measured relative to the digital carrier. Add 6 or 10 dB, as determined by your company's policy and derived from the initial cable network setup, relative to the analog video signal.
6 dBc = decibels relative to carrier.
7 ns = nanoseconds.
EuroDOCSIS Upstream and Downstream Specifications
The recommended settings listed in the following tables are based on a hybrid fiber-coaxial cable (HFC) network in which the digital signal is carried 10 dB below the adjacent analog video channel. If the digital signal on your network is carried 6 dB below the adjacent analog video channel, add 4 dB to the recommended settings in Table A-5Table A-7 and Table A-8.
Table A-7 EuroDOCSIS Cable Upstream RF Specifications
Frequency range
5 to 65 MHz
5 to 65 MHz
Transit delay, CMTS to furthest customer
< 0.800 ms
< 0.800 ms
Carrier to noise ratio
Carrier to ingress power ratio
> 25 dB
> 25 dB
Carrier to interference ratio
Carrier hum modulation
< -23 dBc6 (7%)
< -23 dBc (7%)
Burst noise
< 10 ms
< 10 ms
Amplitude ripple
0.5 dB/MHz
0.5 dB/MHz
Group delay ripple
200 ns/MHz
200 ns/MHz
Micro reflections (single echo)
-10 dBc @ < 0.5 ms
-20 dBc @ < 1.0 ms-10 dBc @ < 0.5 ms
-20 dBc @ < 1.0 msSeasonal/diurnal signal level variation
< 8 dB
< 8 dB
Carrier to second order
< -50 dBc
< -50 dBc
From cable modem (upstream)
+8 to +58 dBmV (QPSK)
+8 to +55 dBmV (16 QAM)+8 to +58 dBmV (QPSK)
+8 to +55 dBmV (16 QAM)Input amplitude to modem card (upstream)
-10 to +25 dBmV
-10 to +25 dBmV
Signal as relative to adjacent video signal
-6 to -10 dBc
-6 to -10 dBc
1 EuroDOCSIS specifications are baseline settings for a EuroDOCSIS-compliant, two-way cable system.
2 Minimum settings are slightly different than the EuroDOCSIS settings to account for cable system variations over time and temperature. Using these settings should increase the reliability of EuroDOCSIS-based, two-way cable systems.
3 QPSK = Quadrature Phase-Shift Keying: a method of modulating digital signals onto a radio-frequency carrier signal using four phase states to code two digital bits.
4 These settings are measured relative to the digital carrier. Add 6 or 10 dB, as determined by your company's policy and derived from the initial cable network setup, relative to the analog video signal.
5 QAM = Quadrature Amplitude Modulation: a method of modulating digital signals onto a radio-frequency carrier signal involving both amplitude and phase coding.
6 dBc = decibels relative to carrier.
Table A-8 EuroDOCSIS Cable Downstream RF Specifications
RF channel spacing (bandwidth)
8 MHz
8 MHz
Transit delay3
0.800 ms
0.800 ms
Carrier to noise ratio
Carrier to ingress power ratio
> 35 dB
> 35 dB
Composite triple beat distortion
< -50 dBc6
< -50 dBc
Carrier to second order
< -50 dBc
< -50 dBc
Cross-modulation level
< -40 dBc
< -40 dBc
Amplitude ripple
0.5 dB in 8 MHz
0.5 dB in 8 MHz
Group delay
75 ns7 in 8 MHz
75 ns in 8 MHz
Micro reflections bound for dominant echo
-10 dBc @ < 0.5 ms
-15 dBc @ < 1.0 ms
-20 dBc @ < 1.5 ms
-30 dBc @ < 1.5 ms-10 dBc @ < 0.5 ms
-15 dBc @ < 1.0 ms
-20 dBc @ < 1.5 ms
-30 dBc @ < 1.5 msCarrier hum modulation
< -26 dBc (5%)
< -26 dBc (5%)
Burst noise
< 25 ms
< 25 ms
Seasonal/diurnal signal level variation
8 dB
8 dB
Signal level slope (50 to 750 MHz)
16 dB
16 dB
Maximum analog video carrier level
+17 dBmV
+17 dBmV
Minimum analog video carrier level
-5 dBmV
-5 dBmV
From headend
-15 to +15 dBmV
-15 to +15 dBmV
Signal as relative to adjacent video signal
-6 or -10 dBc
-6 or -10 dBc
1 EuroDOCSIS specifications are baseline settings for an EuroDOCSIS-compliant, two-way cable system.
2 Minimum settings are slightly different than the EuroDOCSIS settings to account for cable system variations over time and temperature. Using these settings should increase the reliability of EuroDOCSIS-based, two-way cable systems.
3 Transit delay is defined as the "round trip" from the cable headend to the furthest customer and back.
4 QAM = Quadrature Amplitude Modulation: a method of modulating digital signals onto a radio-frequency carrier signal involving both amplitude and phase coding.
5 These settings are measured relative to the digital carrier. Add 6 or 10 dB, as determined by your company's policy and derived from the initial cable network setup, relative to the analog video signal.
6 dBc = decibels relative to carrier.
7 ns = nanoseconds.
Integrated Upconverter Specifications
The integrated upconverter that is installed in the Cisco uBR7100 series chassis meets all DOCSIS and EuroDOCSIS specifications. The upconverter outputs an RF signal and operates in the frequency range of 55 to 858 MHz (band center). The output range is +50 to +63 dBmV at 64 and 256 QAM; the output can go down to +45 dBmV but with degraded power accuracy.
Note
Note
