1-5
Cisco ATA 186 and Cisco ATA 188 Analog Telephone Adaptor Administrator’s Guide (H.323)
OL-4008-01
Chapter1 Cisco Analog Telepho ne Adaptor Overview
Hardware Overview
Hardware Overview
The Cisco ATA186 and Cisco ATA 188 are compact, easy-to-install devices. Figure 1-5 shows the rear
panel of the Cisco ATA186. Figure 1-6 shows the rear panel of the Cisco ATA188.
Figure 1-5 Cisco ATA186—Rear View
Figure 1-6 Cisco ATA188—Rear View
The unit provides the following connectors and indicators:
•5V power connector.
•Two RJ-11 FXS (Foreign Exchange Station) ports—The Cisco ATA supports two independent RJ-11
telephone ports that can connect to any standard analog telephone device. Each port sup ports either
voice calls or fax sessions, and both ports can be used simultaneousl y.
Note 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. The
impedance option is requested when you place your order a nd should match your specific application.
If you are not sure of the applicable configuration, check your country or regionaltelephone impedance
requirements.
10BaseT ACT 5VPHONE 1 PHONE 2
72210
RJ-11 FXS ports
RJ-45 10BaseT ACT LED
Power
connector
10/100 UPLINK10/100 PC LINKLINK 5VPHONE 1PHONE 2
72211
RJ-11 FXS ports LINK LED
Power
connector
LINK LED
RJ-45 10/100BaseT ports