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Overview
Downstream
Modulation
a
Maximum data rate
Frequency range
Bandwidth
Maximum symbol rate 5.069 Msym/s (64 QAM)
Operating level range
Input impedance
Frequency range
Upstream
Modulation
Modulation rate
(nominal)
c
Maximum data rate
Bandwidth
Symbol rates
Operating level range
(one channel)
Output impedance
Frequency range
Output return loss
General
Cable interface
CPE network interface USB, Ethernet 10/100Base-T (auto sensing)
CPE wireless interface IEEE 802.11g
Data protocol
a. Actual speed will vary. Upload and download speeds are affected by several factors including, but not limited to
network traffic and services provided by your cable provider, computer equipment, server type, number of
connections to the server, and the availability of Internet routers.
b. With a CMTS supporting A-TDMA or S-CDMA only.
c. Actual speed will vary. Maximum speed of 30 Mbps is only attainable with A-TDMA or S-CDMA technology.
SBG940 User Guide
Installation Troubleshooting
Configuration: Basic Gateway TCP/IP Wireless USB
64 or 256 QAM
38 Mbps
88 to 860 MHz (30 kHz minimum step size)
6 MHz
5.361 Msym/s (256 QAM)
-15 to +15 dBmV
75 ohms (nominal)
88 to 860 MHz
b
b
b
QPSK or 8
, 16, 32
, 64
, or 128
TDMA: 160, 320, 640, 1280, 2560, and 5120 KHz
S-CDMA: 1280, 2560, and 5120 KHz
30 Mbps
TDMA: 200, 400, 800, 1600, 3200, and 6400
S-CDMA: 1600, 3200, and 6400 kHz
160, 320, 640, 1280, and 2560 ksym/s
TDMA:
•
+8 to +54 dBmV (32 QAM, 64 QAM)
•
+8 to +55 dBmV (8 QAM, 16 QAM)
•
+8 to +58 dBmV (QPSK)
S-CDMA:
•
+8 to +53 dBmV (all modulations)
75 ohms nominal
5 to 42 MHz (edge to edge)
> 6 dB (5 to 42 MHz)
F-Connector, female, 75 ohm
TCP/IP
Contact
FAQ
Specifications Glossary License
b
QAM
b
kHz
113
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