Table 3.14 Electrical Characteristics Of The Vdsl Interface - Samsung OfficeServ 7200 General Description Manual

CHAPTER 3. OfficeServ 7200 Specifications
2.1.4 Signalling Type of the Station
Dial Pulse Signalling Type
Ratio = 10 Pulses Per Second (PPS)
Make/Break Ratio (M/B ratio) = 33 %: 66 % (can be adjusted in the software).
The minimum signalling time between digits = 20 msec (can be adjusted in the
software).
DTMF Push Button Dialling
DTMF signal processing complies with the ITU standard and enables the user to
send/receive digital phone signals through the trunk line and to process analogue
phone signals.
2.1.5 Signalling Type of the VDSL
The electrical characteristics of the VDSL for using long-distance Ethernet are
shown in Table 3.14.
Category
Transmission speed
Modulation code
Error detection
Transmission distance
Transmission media
Characteristic resistance
Used frequency
Link speed
Page 3-8

Table 3.14 Electrical Characteristics of the VDSL Interface

More then 20 Mbps
Quadrature Amplitude Modulation (QAM)
Reed Solomon coding method
1 km
One pair of twisted lines
Splitter installed
138 kHz~12 MHz
Down link : 20 Mbps (300 m), Up link : 8 Mbps (300 m)
OfficeServ 7200 General Description Guide
Specification
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