ZyXEL Communications Prestige 941 - Manual (Page 15)

Prestige 941 Cable Modem
Getting to know your Prestige 1-5
Software and configuration information is downloadable from cable headend to the cable modem for future
software upgrade. Your cable operator will help you in future software upgrade.
Note: DOCSIS cable Systems are capable of providing access speed up to 43 Mbps and 10 Mbps for
downstream and upstream respectively. The bandwidth, however, is shared by several subscribers because
there are very few computers today that can connect to a network at such high speeds. Typical connection
speeds to be expected are 5 Mbps downstream and 1 Mbps upstream.
1.5 Product Specifications
Table 1-1 lists the P941 specifications.
Table 1-1 Product Specifications
Class Features
Downstream
Center Frequency 91 MHz ~ 857 MHz
Modulation 64 QAM and 256 QAM
Channel Width 6 MHz
Receive Input Level -15 dBmv to +15 dBmv
Maximum Data Rates 30.34 Mbps (64QAM), 42.88 Mbps (256QAM)
FEC Reed Solomon Decoder
Encryption 56-bit DES
Upstream
Operation Frequency 5 ~ 42 MHz
Modulation QPSK and 16 QAM
Channel Width Variable, 200kHz ~ 3.2 MHz