Specifications

Analog Line Interface (FXS) Reference Manual (MGCP/NCS Version)
Mediatrix 4100
197
Analog Line Interface (FXS)
 RJ21X connector (Mediatrix 4124)
 RJ-11 connectors (Mediatrix 4108 and Mediatrix 4116)
 Direct connection to a fax machine or telephone (Internal installation and internal cabling)
(Mediatrix 4108 and Mediatrix 4116)
 DC feeding of the access line protected for over voltage
 Loop current detection and hook flash detection capable
 Generation of Selective Ring
Audio Specifications
 Software input and output level adjustable within the range of -30 dB to +20 dB.
 Software-adjustable dynamic and static jitter buffer protection.
 Programmable by country: Call progress tone generation including dial tone, busy tone,
ringback and error tones.
 DSP-based echo control device.
 Silence detection/suppression level software adjustable.
DTMF Tone Detection
Table 125: Analog Line Interface
Parameter Description
Trunk Type Loop Start: capable of Wink and Immediate signalization
Ring Source 45 VRMS max @ 20 up to 50 Hz (selectable) sine signal
Nominal Impedance BellCore compliant 600/900 ohms default setting. Impedance Software
Configurable.
Ring Drive Capacity Up to 3 ringer equivalents (3 RENs) per port.
Loop Current Range 15 to 32 mA factory set. Default 20 mA regulated.
Ring Trip Detection Time 2 ring cycles max
On Hook Voltage -48 VDC
Frequency Response 200 Hz to 3400 Hz ±3 dB (Tx/Rx)
Return Loss 500-3200 Hz: 30 dB
Table 126: DTMF Tone Detection
Parameter Description
16-Digit DTMF Decoding 0 to 9, *, #, A, B, C, D
Permitted Amplitude Tilt High frequency can be +4 dB to -8 dB relative to low frequency
Dynamic Range -25 dBm to 0 dBm per tone
Frequency Accept ± 1.5% of nominal frequencies
Minimum Tone Duration 40 ms, can be increased with software configuration