Motorola SBG900 manual Cable Modem, Home Print Exit

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Configuration: Basic Gateway TCP/IP Wireless USB

Cable Modem

Downstream
Modulation	64 QAM or 256 QAM
Maximum data rate	38 Mbps
Frequency	88 MHz to 860 MHz (30 kHz minimum step size)
Bandwidth	6 MHz
Maximum symbol rate	5.069 Msym/s (64 QAM)
	5.361 Msym/s (256 QAM)
Operating level range	-15 dBmV to +15 dBmV
Input impedance	75 ohms (nominal)
Frequency range	88 to 860 MHz
Upstream
Modulation	QPSK, 16 QAM, 32 QAM, 64 QAM, or 128 QAM
Modulation rate	TDMA: 160, 320, 640, 1280, 2560, and 5120 KHz
(nominal)	S-CDMA: 1280, 2560, and 5120 KHz
Maximum data rate	30 Mbps
Bandwidth	TDMA: 200, 400, 800, 1600, 3200, and 6400 kHz
	S-CDMA: 1600, 3200, and 6400 kHz
Frequency	5 MHz to 42 MHz (edge to edge)
Symbol rates	160, 320, 640, 1280, and 2560 ksym/s
Operating level range	TDMA:
(one channel)	• +8 dBmV to +54 dBmV (32 QAM, 64 QAM)
	• +8 dBmV to +55 dBmV (8 QAM, 16 QAM)
	• +8 dBmV to +58 dBmV (QPSK)
	S-CDMA:
	• +8 dBmV to +53 dBmV (all modulations)
Output impedance	75 ohms nominal
Output return loss	> 6 dB (5 to 42 MHz)
General
Cable interface	F-Connector, female, 75 ohm
CPE network interface	USB, Ethernet 10/100Base-T (auto sensing)
Data protocol	TCP/IP

X 104 SBG900 User Guide

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