Table 3.7 Electrical Characteristics Of The Lan Interface (100 Base-Tx) - Samsung OfficeServ 7100 series System Description

3.2.1.2. LAN Signaling
The electrical characteristics of the 100 Base-Tx, which comply with the IEEE802.3u
standards, are shown in the table below:

Table 3.7 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
Mode Band
The mode band shown in the previous table is a quality indicator of the multimode
optical fiber related to the transmission speed. Its unit is generally MHz.Km, and
is proportional to the value of the bit rate of the optical signal (the on-off speed) X
the maximum transmission distance. The largeness of this value means the high
optical signal with high bit rate can be transmitted. Each mode band is
standardized also in the use of short wave and long wave laser.
Categories of UTP Cable
UTP Cables are classified into Straight-through UTP cable and Crossover UTP
cable. The Straight-through UTP cable is used for connecting the LIM module of
OfficeServ 7100 system to other modules (MGI16/MGI64).
The Crossover UTP cable is used for connecting only LIM module to LIM module.
© SAMSUNG Electronics Co., Ltd.
100 Mbps
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).
CSMA/CD
UTP CAT5, STP
2 pairs
100 
Diameter: 0.51 mm (24 AWG), External diameter: 6 mm
OfficeServ 7100 System Description
Specifications
3-5