Zhone Technologies IMACS-200 manual FXS port Specifications, Automatic Ringdown Plar

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 ∝ 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

System Standards and Specifications A-5