Table 3.7 Electrical Characteristics Of The Dli Line; Table 3.8 Electrical Characteristics Of The Lan Interface (100 Base-Tx) - Samsung OfficeServ 7070 System Description

The electrical characteristics of the Digital Line Interface (DLI) are shown in the table
below.
Category
Transmission speed
Code
Pulse type
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. The basic OfficeServ 7070 system supports only
100 Mbps to guarantee the connection status of the VoIP line.

Table 3.8 Electrical Characteristics of the LAN Interface (100 BASE-TX)

Category
Transmission speed
Transmission code
Access control method
Transmission media
Number of the UTP pairs
Characteristic resistance
Cable thickness
3.2.1.3 Station Signaling
Dial Pulse Signaling

Ratio: 10 Pulse Per Second (PPS)

Make/Break Ratio (M/B ratio): 33 %/66 % (It can be adjusted by the software.)

The minimum signaling time between digits: 20 ms (It can be adjusted by the
software.)
DTMF Push Button Dialing
The DTMF signal processing complies with the ITU standard, which enables the user to
send/receive the signals of digital phones through the trunk line and to process the signals
of regular phones.
© SAMSUNG Electronics Co., Ltd.
OfficeServ 7070 System Description/Ed.02OfficeServ 7070 System Description/Ed.02

Table 3.7 Electrical Characteristics of the DLI Line

384 Kbits/s
AMI (Alternate Mark Inversion)
Typical AMI Waveform
100 Mbps
The 4B/5B+MLT-3 (4 bit/5 bit) is the method used to convert and
encode 4-bit data to 5-bit data in the physical layer. The Multi
Level Transmission-3 (MLT-3) is the method used to encode the
sending data into three (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
Specification
Specification
3-5