ZyXEL Communications Multi-service Access Platform MSAP2000 User Manual
Page 239

11. System Parameter Specification
MSAP2000 Technical Manual V3.0
11-10
Parameters FXO-P
(COT) FXS-P
(RT)
Net Loss
20
±75 dB
End-to-End Return
Loss
300 ~ 600 Hz: > 12 dB
600 ~ 3400 Hz
:
> 15 dB
Longitudinal
Conversion Loss
300 Hz ~ 600 Hz: > 40 dB
600 Hz ~2400 Hz: > 46 dB
2400 Hz ~3400 Hz: > 41 dB
Attenuation/Frequency
Distortion
Please refer to Figure 11-A
Group Delay Distortion
with Frequency
Please refer to Figure 11-B
Idle Channel Noise
< - 65 dBm0p
Signal-to-total
Distortion Ratio
Please refer to
Figure 11-C
Gain Variation of Input
Signal Level
Please refer to Figure 11-D
Inter-channel Crosstalk
< -65dBm0
(the Input Test Signal is 1020Hz, 0
dBm0)
Spurious In-band
Signals
Less than –40 dBm0
Link Performance
(Table 11-D)
Spurious Out-band
Signals
Less than –25 dBm0
Impulse Noise
Less than 15 occurrences within 1
15-minute interval, at a threshold value
of 47 dBrnC0
V.34 Modem
Transmission
Performance
When the input signal level is -10dBm,
the transmission speed is
31.2Kbit/s,
with the BER
10-7