Physical Interfaces A - Cisco ATA 190 Administration Manual

Appendix A ATA 190 Specifications
Physical Interfaces
Table A-4
Description
Ethernet
Analog phone
Power
Power switch
Ringing Characteristics
Table A-5
Description
Tip/ring interfaces for each RJ-11 FXS port (SLIC)
Ring voltage
Ring frequency
Ring waveform
Ring load
Ringer equivalence number (REN)
Loop impedance
On-hook/off-hook characteristics
On-hook voltage (tip/ring)
Off-hook current
RJ-11 FXS port terminating impedance option
Software Specifications
Table A-6
Description
Call progress tones
Dual-tone multifrequency (DTMF)
OL-31821-01
Physical Interfaces
Specification
One RJ-45 connector, IEEE 802.3 100BaseT standard
Two RJ-11 FXS voice ports
5VDC power connector
Power switch to turn the ATA 190 on or off
Ringing Characteristics
Software Specifications (All Protocols)
Specification
Configurable for two sets of frequencies and single set of on/off
cadence
DTMF tone detection and generation
Cisco ATA 190 Analog Telephone Adaptor Administration Guide for SIP (Version 1.0)
Specification
40V (typical, balanced ringing only)
RMS
20 Hz
Trapezoidal with 1.2 to 1.6 crest factor
1400 ohm + 40μF
Up to 5 REN per RJ-11 FXS port
Up to 200 ohms (plus 430-ohm maximum phone DC
resistance)
–48V
24 mA (nominal)
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.
Physical Interfaces
A-3