Installation manual

CHAPTER 3. Specification of OfficeServ 7400
3-8 © SAMSUNG Electronics Co., Ltd.
3.2.1.3. Signaling Type of the LAN
y The electrical characteristics of the 10 Base-T, 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 Specifications
Transmission speed
10 Mbits/s
Transmission code Manchester coding (When the transmission data is ‘0’, the higher
level than the middle of the bit is inversed into the lower level.
When the transmission data is ‘1’, the lower level than the middle of
the bit is inversed into the higher level)
Access control method
Carrier Sense Multiple Access/Collision Detect (CSMA/CD)
Transmission media UTP (Unshielded Twisted Pair) CAT3, CAT4, CAT5,
STP (Shielded Twisted Pair)
Number of the UTP pairs
2 pairs
Characteristic resistance
100 Ω
Cable thickness
Diameter: 0.51 mm (24 AWG), External diameter: 5 mm
y 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 Specifications
Transmission speed 100 Mbits/s
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 Ω
Cable thickness Diameter: 0.51 mm (24 AWG), External diameter: 6 mm