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ZyXEL Communications Multi-service Access Platform MSAP2000 User Manual

Page 234

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11. System Parameter Specification

MSAP2000 Technical Manual V3.0

11-5

Pulse Shape

Complies with ITU-T G.703 recommended standards.
Output signals fall with the range of normal pulse shapes, as
shown in the following diagram:

Peak Voltage value of Mark “1”

3.0V

Peak Voltage Value of Space “0”

0

± 0.3V

Nominal Signal period cycle

488 ns

Nominal Signal Pulse width

244 ns

Nominal Signal duty cycle

50%

Amplitude ratio of positive &
negative pulses, at mid-pulse
range

0.95~1.05

Pulse width ratio of positive and
negative pulses, at mid-pulse
range

0.95~1.05