CHAPTER 3. Specification of OfficeServ 7030
3-4
© SAMSUNG Electronics Co., Ltd.
The electrical characteristics of the Digital Line Interface (DLI) are shown in the table
below:
Table 3.6 Electrical Characteristics of the DLI Line
Categories
Specifications
Transmission speed
384 kbits/s
Code
Alternate Mark Inversion (AMI)
Pulse type
Typical AMI Waveform
3.2.1.2 LAN Signaling
The electrical characteristics of the 10 BASE-T, which complies with the IEEE 802.3
standard, are shown in the table below:
Table 3.7 Electrical Characteristics of the LAN Interface (10 BASE-T)
Category
Specification
Transmission speed
10 Mbits/s ±50 ppm
Transmission code
Manchester coding
- When the transmission data bit is ‘0’, the higher level of the middle
bit is inversed into the lower level. When the transmission data bit is
‘1’, the lower level of the middle bit is inversed into the higher level.
Access control method
CSMA/CD
Transmission media
UTP CAT3, CAT4, CAT5, STP
Number of the UTP pairs
2 pairs
Characteristic resistance
100
W
Cable thickness
Diameter: 0.51 mm (24 AWG), External diameter: 5 mm
The electrical characteristics of the 100 Base-Tx, which comply with the IEEE 802.3u
standards, are shown in the table below:
Table 3.8 Electrical Characteristics of the LAN Interface (100 Base-Tx)
Categories
Specifications
Transmission speed
100 Mbps
Transmission code
4B/5B+MLT-3
- 4-bit/5-bit converts the data of 4bit into the data of 5bit and encodes
the data on the physical layer. Multi Level Transmission-3 (MLT-3)
encodes transmission data into 3 levels (high, middle, and low).
Access control type
CSMA/CD
Transmission media
UTP CAT5, STP
Number of UTP pairs
2 pairs
Characteristic resistance
100
W
Cable thickness
Diameter: 0.51 mm (24 AWG), External diameter: 6 mm
Содержание OfficeServ 7030
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