cc/td/doc/product/voice/ata/ataadmn
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Table of Contents

Cisco ATA Specifications
Physical Specifications
Electrical Specifications for Cisco ATA
Environmental Specifications
Immunity Specifications
Physical Interfaces
Ringing Characteristics
Software Specifications

Cisco ATA Specifications


This section describes the Cisco ATA specifications:

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 for Cisco ATA

Table C-2   Electrical Specifications

Description   Specification  

Power

3.5 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

Environmental Specifications

Table C-3   Environmental Specifications

Description   Specification  

Operating temperature

41 to 104\xb0 F (5 to 40\xb0 C)

Storage temperature

-4 to 140\xb0 F (-20 to 65\xb0 C)

Relative humidity

10 to 90% noncondensing, operating, and nonoperating/storage

Immunity Specifications

EN50082-1, including the following:

Physical Interfaces

Table C-4   Physical Interfaces

Description   Specification  

Ethernet

Two RJ-45, IEEE 802.3 10BASE-T standard

Analog telephone

Two RJ-11 FXS voice ports

Power

5 VDC power connector

Indicators

Function button with integrated status indicator

Link and 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 + 40 microF (per line)

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

25 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 for SCCP

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


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Posted: Wed Jul 9 16:55:42 PDT 2003
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