Wireless Basics - D-Link DCM-604 Series User Manual

DCM-604 Series EMTA Embedded Multimedia Terminal Adaptor
User's Manual
Table 4. RF Upstream Specification (for EuroDOCSIS system)
Parameter
Frequency Range
Modulation
Symbol Rate
Bandwidth
Output power
Output Impedance
Table 5. Electrical Specification
Parameter
Input Voltage
Power consumption
Table 6. Physical Specification
Parameter
Size 228mm (L) x 160 mm (W) x 41 mm (H)
Weight Net Weight: 470g +/- 10g
Table 7. Environmental Specification
Parameter
Operating Temperature
Operating Relative Humidity
Operating Altitude
Storage Temperature

Wireless Basics

D-Link wireless products are based on industry standards to provide easy-to-use and
compatible high-speed wireless connectivity within your home, business or public access
wireless networks. Strictly adhering to the IEEE standard, the D-Link wireless family of
products will allow you to securely access the data you want, when and where you want it.
You will be able to enjoy the freedom that wireless networking delivers.
A wireless local area network (WLAN) is a cellular computer network that transmits and
receives data with radio signals instead of wires. Wireless LANs are used increasingly in
both home and office environments, and public areas such as airports, coffee shops and
universities. Innovative ways to utilize WLAN technology are helping people to work and
communicate more efficiently. Increased mobility and the absence of cabling and other
fixed infrastructure have proven to be beneficial for many users.
Wireless users can use the same applications they use on a wired network. Wireless
adapter cards used on laptop and desktop systems support the same protocols as
Ethernet adapter cards.
5 MHz to 65 MHz
QPSK, 8QAM, 16QAM, 32QAM, 64QAM, 128QAM
(TCM only)
TDMA: 160K, 320K, 640K, 1280K, 2560K,
5120Ksym/sec
S-CDMA: 1280K, 2560K, 5120Ksym/sec
TDMA: 200K, 400K, 800K, 1600K, 3200K, 6400KHz
S-CDMA: 1600K, 3200K, 6400KHz
TDMA QPSK: 8 ~ 58 dBmV 8/16QAM: 8 ~ 55
dBmV 32/64QAM: 8 ~ 54 dBmV
S-CDMA QPSK, 8/16/32/64/128QAM: 8 ~ 53
dBmV
75 Ohms
Measured Value
12VDC
< 8.7W
0 °C to +40 °C
10% to 90% (Non-condensing)
-100 to +7,000 feet
-10 °C to +60 °C
Value
With AC adaptor
Value
Value
Notes
27