Zhone Technologies IMACS-200 - Manual (Page 257)

System Standards and Specifications A-5
A.4.2 FXS port Specifications
FXS ports IMACS-200-FXS
Number of Ports
IMACS-200-FXS 4 ports
Physical Interface
Connector 1 female 50-pin telco connector
Transmission Performance
Performance Exceeds requirements of ITU-T Rec. G.713
Signaling Modes
Signaling Modes Foreign Exchange Station (FXS) Loop Start and Private Line
Automatic Ringdown ( PLAR)
Termination Impedance
IMACS-200-FXS 600 Ohms with 2.16
µ
F
VF Transmission Characteristics
Nominal Transmit TLP Defaults to +2.0 dB. Can be set from -6.5 dB to +9.0 dB
Nominal Receive TLP Defaults to -2.0 dB. Can be set from -9.0 dB to +3.0 dB
PCM Encoding Software selectable on a per port basis
Attenuation Versus Frequency Relative to 1 kHz with 0 dBm0 input
Frequency Transmit (A to D) Receive (D to A)
200 Hz -0.25 to +3.0 dB -0.25 to +2.0 dB
300 to 3000 Hz -0.25 to +0.5 dB -0.25 to +0.5 dB
3200 Hz 0.25 to +0.75 dB -0.25 to +0.75 dB
3400 Hz -0.25 to +1.5 dB -0.25 to +1.5 dB
Return Loss (at 1 kHz) >28 dB
Transhybrid Loss 34dB
Idle Channel Noise (rcv and xmt) < -65 dBm0p Typ < -70 dBmop or < 20 dBrnc0
Interchannel Crosstalk Typ < -75 dBm0 using 7 adjacent channels being disturbed with a signal
of 0.0 dBm0
Total Distortion including Quantization (Signal to Distortion Ratio) Input Frequencies 1004-1020 Hz
Input Level Rcv or Xmt Overall
-30 to 0 dBm0 >35 dB >33 dB
-40 dBm0 >29 dB >27 dB
-45 dBm0 >25dB >22 dB
Absolute group delay < 750 microseconds
Group Delay Distortion vs. frequency within boundaries of ITU-T Rec. G.713 Figure 2
Longitudinal Balance Nom > 46 dB
Typ > 50 dB
Variation of Gain with Input Level within boundaries of ITU-T Rec. G.713 Figure 7