Cirkuit Planet IPX-300 Benutzerhandbuch

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Appendix G 
IPX-1900 Module Card Specifications 
IPX-19FO Card Technical Specifications 
Signaling 
Loop Start / DTMF 
No. of channels 
Interface Connectors 
2 RJ-11 2-pin modular jacks 
AC Impedance Selection    600 
Ω /900 Ω / Global Impedance / Sixteen Impedance 
for selection. 
Receive Frequency 
Response 
Low –3 dBFS Corner, FILT = 0 , 5 Hz 
Low –3 dBFS Corner, FILT = 1, 200 Hz 
Return Loss 
≥ 25 dB , 300–3.4 kHz, all ac terminations 
digital gain/attenuation 
adjustment 
–16.5 to 13.5 dB 
Tranhybrid Balance 
≥ 20 dB, 300–3.4 kHz, all ac 
terminations 
Polarity Reversal Detection    Support Battery Reversal Detection 
 
  IPX-19FS Card Technical Specifications 
Signaling 
Loop Start / DTMF 
No. of channels 
Interface Connectors 
2 RJ-11 2-pin modular jacks 
Line Impedance 
600 
Ω 
900 
Ω 
Return Loss 
Min 30db, 200 Hz to 3.4 kHz 
Gain/Attenuation 
Digital Programmable from mute~6db 
Metallic to Longitudinal 
Balance 
Min. 40 db, 200 Hz to 3.4 kHz 
DC Loop Current Accuracy  29mA nominal 
Ring Voltage 
44Vrms Nominal 
Ringing Tone 
16.667Hz, 20Hz /30Hz / 40Hz/ 50Hz / 60Hz 
REN 5 
Pulse metering 
12k/16k hz 
 
Note: The IPX-19SL module card signaling same as IPX-19FO/FS specifications.