Transmission Characteristics; Line Conditions - Samsung OfficeServ 7400 General Description Manual

CHAPTER 3. OfficeServ 7400 Specifications

3.2.2 Transmission Characteristics

Attenuation
Attenuation between subscribers: Less than 6 dB
Attenuation between the subscriber and local trunk line: Less than 0.5 dB
Characteristic resistance of the line: 600 Ω
Weighted noise: Less than -65 dBm
Crosstalk attenuation: Less than -68 dBm
Frequency band: 300~3400 Hz
Insulation resistance: More than 1 MΩ

3.2.3 Line Conditions

Length for installation:
Analogue phones: Up to 1 km (when AWG #24 cable is used)
Digital phones: Up to 400 m (when AWG #24 cable is used)
Door phones: Up to 400 m (when AWG #24 cable is used)
AOMs: Up to 400 m (when AWG #24 cable is used)
Length between 4WLI and Combo Access Point: Up to 600 m (when AWG #24 cable
is used)
Leakage resistance between lines: More than 20 kΩ
Leakage resistance between grounds: More than 20 kΩ
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