Samsung OfficeServ 7400 General Description Manual page 76

CHAPTER 3. OfficeServ 7400 Specifications
3.2.1.3. Signalling Type of the LAN
The electrical characteristics of the 10 Base-T interface, which comply with the
IEEE802.3 standards, are shown in the table below:
Table 3.13 Electrical Characteristics of the LAN Interface (10 Base-T)
Categories
Transmission speed
Transmission code
Access control method
Transmission media
Number of UTP pairs
Characteristic resistance
Cable thickness
The electrical characteristics of the 100 Base-Tx, which comply with the IEEE802.3u
standards, are shown in the table below:
Table 3.14 Electrical Characteristics of the LAN Interface (100 Base-Tx)
Categories
Transmission speed
Transmission code
Access control type
Transmission media
Number of UTP pairs
Characteristic resistance
Cable thickness
3-8
10 Mbps
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.
Carrier Sense Multiple Access/Collision Detect
(CSMA/CD)
UTP (Unshielded Twisted Pair) CAT3, CAT4, CAT5,
STP (Shielded Twisted Pair)
2 pairs
100 Ω
Diameter: 0.51 mm (24 AWG), External diameter: 5 mm
100 Mbps
4B/5B+MLT-3
- 4bit/5bit converts the 4-bit data into 5-bit data and encodes the data
on the physical layer. Multi Level Transmission-3 (MLT-3) encodes
transmission data into 3 levels (high, middle, and low).
CSMA/CD
UTP CAT5, STP
2 pairs
100 Ω
Diameter: 0.51 mm (24 AWG), External diameter: 6 mm
Specifications
Specifications
© Samsung Business Communications