ZyXEL Communications Multi-service Access Platform MSAP2000 - Manual (Page 148)

7. Product Specification
MSAP2000 Technical Manual V3.0 7-41
QE1M Specification
Microprocessor Winbond W90N740
Flash ROM Flash EPROM (1MB)
Hardware
RAM SDRAM (2MB)
Interface Input Port Number 4
Standard Bit Rate
Line Code 2048 Kbits/s± 50ppm
HDB3/AMI(software selectable)
Nominal Test Impedance 120 Ω (balance) and
75 Ω (unbalance) ready for radio
Frame ITU-T G.704
CRC ITU-T G.706
Clock Output Selected from 4 output ports,
may select up to 2 ports
Output Port
Features
Complies with ITU-TG.703
Peak Voltage value of Mark “1”
Peak Voltage Value of Space ”1”
3.0V
0± 0.3V
Nominal Signal period cycle 488 ns
Nominal Signal Width 244 ns
Nominal Signal duty cycle
Amplitude ratio of positive &
negative pulses, at midpoint of
pulse width
Width ratio of positive & negative
pulses, at midpoint of pulse width 50%
0.95~1.05
0.95~1.05
Jitter ITU-T G.823
Output Peak Jitter ≤ 0.1UI (20Hz ~100KHz)
Line Loss Tolerance Transmission Loss at 0~6 dB
(1024Hz)
Input Jitter Tolerance Complies with ITU-T G.823
Return Loss <12dB (51~102kHz)
<18dB (102~2048 kHz)
<14dB(2048~3072 kHz)
Power Input 5VDC/1.2A
Power
Consumption 5W@25°C
Environment Operation Temperature and
0°C to +60°C
Humidity Up to 95% relative humidity
Storage Temperature and -10°C to +80°C
Humidity Up to 95% relative humidity
Height 213 ± 1mm
Width 18 ± 1mm
Depth 257 ± 1mm
Dimension
Weight 305 ± 2 g
EMI
CNS 13438 or CISPR 22
ESD
IEC 61000-4-2 Class 1