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
The term Cisco ATA refers to both the Cisco ATA 186 and the Cisco ATA 188, unless otherwise stated.
