Cisco ATA 190 - Physical Interfaces; Ringing Characteristics; Software Specifications

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Cisco ATA 190 Analog Telephone Adaptor Administration Guide for SIP (Version 1.0)
OL-31821-01
Appendix A ATA 190 Specifications
Physical Interfaces
Physical Interfaces
Ringing Characteristics
Software Specifications
Ta b l e A-4 Physical Interfaces
Description Specification
Ethernet One RJ-45 connector, IEEE 802.3 100BaseT standard
Analog phone Two RJ-11 FXS voice ports
Power 5VDC power connector
Power switch Power switch to turn the ATA 190 on or off
Ta b l e A-5 Ringing Characteristics
Description Specification
Tip/ring interfaces for each RJ-11 FXS port (SLIC)
Ring voltage 40V
RMS
(typical, balanced ringing only)
Ring frequency 20 Hz
Ring waveform Trapezoidal with 1.2 to 1.6 crest factor
Ring load 1400 ohm + 40μF
Ringer equivalence number (REN) Up to 5 REN per RJ-11 FXS port
Loop impedance Up to 200 ohms (plus 430-ohm maximum phone DC
resistance)
On-hook/off-hook characteristics
On-hook voltage (tip/ring) –48V
Off-hook current 24 mA (nominal)
RJ-11 FXS port terminating impedance option The ATA 190-I1 provides multiple impedance, such
as 600 ohm for American SKU, 900 ohm for
European SKU, 220 ohm (820 ohm || 120nF) for
Australian SKU, and so on.
Ta b l e A-6 Software Specifications (All Protocols)
Description Specification
Call progress tones Configurable for two sets of frequencies and single set of on/off
cadence
Dual-tone multifrequency (DTMF) DTMF tone detection and generation