Motorola AL 200, Installation Manual

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Specifications A-1
Appendix A
Specifications
Introduction This section describes the specifications for the Motorola AL 200 Multi-User
Modem.
IP and MAC Layer
Specifications
This table describes the IP and MAC layer specifications for the AL 200.
Physical Layer
Specifications This table describes the Physical layer specifications for the AL 200.
This table describes the physical specifications for each modulation mode.
IP and MAC Layer Specification
MAC performance 16 CPE MAC addresses and eight
downstream encryption SIDs
Upstream bandwidth request Four independent upstream transmit
controllers
Multicast 256 multicast groups
Filtering 272 IP filters
Physical Layer
Property
Specification
Upstream Transmitter Downstream Receiver
Impedance, return loss 75 Ohms nominal, >6 dB 75 Ohms nominal, >6 dB
Frequency range 5 - 42 MHz 91-857 MHz
Channel assignment Variable center frequencies Standard, IRC, and HRC
Channel bandwidth 200, 400, 800, 1600, and
3200 KHz 6 MHz for 64QAM and
256QAM
Physical Layer
Property
Specification
Transmitter Receiver
16QAM QPSK 64QAM 256QAM
Dynamic range +8 to +55 dBmV +8 to +58 dBmV -20 to +15 dBmV
Typically -25 to
+15 dBmV
-15 to +15 dBmV
Typically -20 to
+15 dBmV
Symbol rate 160, 320, 640, 1280,
2560 Ksym/s 160, 320, 640, 1280,
2560 Ksym/s 5.056941 Msym/s 5.360537 Msym/s