TRENDnet VoIP Gateway Network Hardware User Manual


  Open as PDF
of 100
 
TVP-221H User’s Guide
82
Telephony Line Module Specifications
FXO Ports
Signaling
Loop start/DTMF
Number of channels
2
Interface connectors
2 RJ-11 2-pin modular jacks
Line impedance
600900 Complex line impedance
Insertion loss
2 dB nominal
Frequency response
300 Hz ~ 3400 Hz +/- 2 dB w.r.t. 1004 Hz
Return loss
18 dB
Input level adjustment
-6 dB to +6 dB
Output attenuation
0 dB to 13 dB
Longitudinal balance
45 dB
Disconnect detection
Loop current; Customizable tone detection
FXS Ports
Signaling
Loop start/DTMF
Number of channels
2
Interface connectors
2 RJ-11 2-pin modular jacks
Line impedance
600900 Complex line impedance
Insertion loss
2 dB nominal
Frequency response
300 Hz ~ 3400 Hz +/- 2 dB w.r.t. 1004 Hz
Return loss
18 dB
Input level adjustment
-6 dB to +6 dB
Output attenuation
0 dB to 13 dB
Longitudinal balance
 45 dB
Loop current
25 mA nominal
Ring voltage
40 Vrms nominal
Ringing tone
16.67 Hz, 20 Hz (default), 25 Hz or 50 Hz
Disconnect detection
Loop current
 previous next