Table 3.15 Electrical Characteristics Of The Wim Interface (Rs-232C Interface); Table 3.16 Electrical Characteristics Of The Wim Interface (Rs-499 Interface); Table 3.17 Electrical Characteristics Of The Lan Interface (10 Base-T) - Samsung OfficeServ 7200 System Description

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Table 3.15 Electrical Characteristics of the WIM Interface (RS-232C Interface)

Maximum transmission speed
Transmission code
Number of transmission lines
Characteristic resistance
Indicated (pulse) nominal peak voltage
Input threshold
The electrical characteristics of the RS-449 (V.11) interface are shown in the table below:

Table 3.16 Electrical Characteristics of the WIM Interface (RS-499 Interface)

Maximum transmission speed
Transmission code
Number of transmission lines
Characteristic resistance
Indicated (pulse) nominal peak voltage
Input threshold
3.2.1.3 Signaling Type of the LAN
The electrical characteristics of the 10 BASE-T, which complies with the IEEE802.3
standard, are shown in the table below:

Table 3.17 Electrical Characteristics of the LAN Interface (10 BASE-T)

Transmission speed
Transmission code
Access control method
Transmission media
Number of the UTP pairs
Characteristic resistance
Cable thickness
3-10
Category
Category
Category
Specification
230 Kbits/s
V.28 driver
14
3 K-7 K
±15 V
+1.2-1.7 V
Specification
10 Mbits/s
V.11 driver
24
100 
±10 V
±0.3 V
Specification
10 Mbits/s ±50 ppm
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 
Diameter: 0.51 mm (24 AWG), External diameter: 5 mm
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