Table Of Contents
Cisco ATA Specifications
Physical Specifications
Electrical Specifications
Environmental Specifications
Physical Interfaces
Ringing Characteristics
Software Specifications
SIP Compliance Reference Information
Cisco ATA Specifications
This section describes Cisco ATA specifications:
•
Physical Specifications
• Electrical Specifications
• Environmental Specifications
• Physical Interfaces
• Ringing Characteristics
• Software Specifications
• SIP Compliance Reference Information
Note The term Cisco ATA refers to both the Cisco ATA 186 and the Cisco ATA 188, unless otherwise stated.
Physical Specifications
Table C-1 Physical Specifications
Description
|
Specification
|
Dimensions
|
1.5 x 6.5 x 5.75 in. (3.8 x 16.5 x 14.6 cm) (H x W x D)
|
Weight
|
15 oz (425 g)
|
Electrical Specifications
Table C-2 Electrical Specifications
Description
|
Specification
|
Power
|
0.25 to 7.5W (idle to peak)
|
DC input voltage
|
+5.0 VDC at 1.5A maximum
|
Power adaptor
|
Universal AC/DC
~3.3 x 2.0 x 1.3 in. (~8.5 x 5.0 x 3.2 cm)
~4.8 oz (135 g) for the AC-input external power adaptor
~4 ft (1.2 m) DC cord
6 ft (1.8 m) cord
UL/CUL, CE approved
Class II transformer
|
Environmental Specifications
Table C-3 Environmental Specifications
Description
|
Specification
|
Operating temperature
|
41 to 104×F (5 to 40×C)
|
Storage temperature
|
-4 to 140×F (-20 to 65×C)
|
Relative humidity
|
10 to 90% noncondensing, operating, and nonoperating/storage
|
Physical Interfaces
Table C-4 Physical Interfaces
Description
|
Specification
|
Ethernet
|
Two RJ-45 connectors, IEEE 802.3 10BaseT standard
|
Analog telephone
|
Two RJ-11 FXS voice ports
|
Power
|
5 VDC power connector
|
Indicators
|
Function button with integrated status indicator
Activity LED indicating network activity
|
Ringing Characteristics
Table C-5 Ringing Characteristics
Description
|
Specification
|
Tip/ring interfaces for each RJ-11 FXS port (SLIC)
|
Ring voltage
|
40VRMS (typical, balanced ringing only)
|
Ring frequency
|
25 Hz
|
Ring waveform
|
Trapezoidal with 1.2 to 1.6 crest factor
|
Ring load
|
1400 ohm + 40mF
|
Ringer equivalence number (REN)
|
Up to 5 REN per RJ-11 FXS port
|
Loop impedance
|
Up to 200 ohms (plus 430-ohm maximum telephone DC resistance)
|
On-hook/off-hook characteristics
|
On-hook voltage (tip/ring)
|
-50V
|
Off-hook current
|
27 mA (nominal)
|
RJ-11 FXS port terminating impedance option
|
The Cisco ATA186-I1 and Cisco ATA188-I1 provide 600-ohm resistive impedance. The Cisco ATA186-I2 and Cisco ATA188-I2 provide 270 ohm + 750 ohm // 150-nF complex impedance.
|
Software Specifications
Table C-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
|
Fax
|
G.711 fax pass-through and G.711 fax mode.
Enhanced fax pass-through is supported on the Cisco ATA. Success of fax transmissions up to 14.4 kbps depends on network conditions, and fax modem/fax machine tolerance to those conditions. The network must have reasonably low network jitter, network delay, and packet-loss rate.
|
Line-echo cancellation
|
•Echo canceller for each port
•8 ms echo length
•Nonlinear echo suppression (ERL > 28 dB for frequency = 300 to 2400 Hz)
•Convergence time = 250 ms
•ERLE = 10 to 20 dB
•Double-talk detection
|
Out-of-band DTMF
|
•H.245 out-of-band DTMF for H.323
•RFC 2833 AVT tones for SIP, MGCP, SCCP
|
Configuration
|
•DHCP (RFC 2131)
•Web configuration via built-in Web server
•Touch-tone telephone keypad configuration with voice prompt
•Basic boot configuration (RFC 1350 TFTP Profiling)
•Dial plan configuration
•Cisco Discovery Protocol
|
Quality of Service
|
•Class-of-service (CoS) bit-tagging (802.1P)
•Type-of-service (ToS) bit-tagging
|
Security
|
•H.235 for H.323
•RC4 encryption for TFTP configuration files
|
Voice coder-decoders (codecs)
|
Note In simultaneous dual-port operation, the second port is limited to G.711 when using G.729.
•G.723.1
•G.729, G.729A, G.729AB
•G.723.1
•G.711A-law
•G.711µ-law
|
Voice features
|
•Voice activity detection (VAD)
•Comfort noise generation (CNG)
•Dynamic jitter buffer (adaptive)
|
Voice-over-IP (VoIP) protocols
|
•H.323 v2
•SIP (RFC 2543 bis)
•MGCP 1.0 (RFC 2705)
•MGCP 1.0/network-based call signalling (NCS) 1.0 profile
•MGCP 0.1
•SCCP
|
SIP Compliance Reference Information
Information on how the Cisco ATA complies with the IETF definition of SIP as described in RFC 2543 is found at the following URL:
http://www-vnt.cisco.com/SPUniv/SIP/documents/CiscoATASIPComplianceRef.pdf
