beautypg.com

ZyXEL Communications Multi-service Access Platform MSAP2000 User Manual

Page 239

background image

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