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Cisco uBR924 Installation Manual page 78

Cable access router
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Data Specifications
Table A-2
Cisco uBR924 Cable Access Router Data Specifications (continued)
Description
One Channel
Security
Cisco uBR924 Router Hardware Installation Guide
A-4
Downstream Values
Receive level of digital signal
-15 to +15 dBmV
Note
Most field measurements are of
nearby or adjacent analog signal
which is normally +6 to +10 dB
(system specific) above the digital
signal level
DES decryption: DOCSIS Baseline Privacy
(BPI), 40-bit, 56-bit, and 168-bit DES
encryption, as controlled by the headend and
configuration files.
Note
Cisco IOS images must contain encryption software at both the CMTS and the
Cisco uBR924 router. Both routers must be enabled and properly configured to support
encryption.
Appendix A
Upstream Values
QPSK— +8 to +58 dBmV
16 QAM— +8 to +55 dBmV
DES encryption
Technical Specifications
OL-0338-01 (3/2000)

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