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V487i WMU User’s Guide
4 T
ECHNICAL
S
PECIFICATIONS
General
Dimensions
12.6 x 7.9 x 4.4 in. (32 x 20 x 11 cm)
Operating
Temperature
-33 to 60° C
Power
9.5V-29V (Max 3A)
Interface
Data Interface
RS232 (SCADA service)RJ45 – 10/100 baseT Ethernet
full/half duplex
RF Interface
50 ohm N Type Female Connector
RF Characteristics
Downstream
RX Frequency
757 – 758 MHz Downstream Receive
Channel Bandwidth
245, 330 KHz
Modulation Format
QPSK, 16QAM, & 64QAM
Data Rates
0.55 – 1.65 Mbps
Rx Sensitivity (dBm)
BW
(KHz)
64 QAM
16 QAM
QPSK
330
-81
-87
-91
RF Characteristics
Upstream
Frequency Range
787 – 788 MHz
Channel Bandwidth
250, 325 kHz
Modulation Format
QPSK & 16QAM
Data Rates (Raw)
0.52 – 1.04 Mbps @ 330 KHz
0.4 – 0.8 Mbps @ 250 KHz
RF Amplifier P1dB
37 dBm
Linear Output Power
Up to 27 dBm
