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Cisco ATA 187 Analog Telephone Adaptor Administration Guide for SIP (Version 1.0)
OL-21862-01
Appendix A ATA 187 Specifications
Electrical Specifications
Electrical Specifications
Environmental Specifications
Physical Interfaces
Ta b l e A-2 Electrical Specifications
Description Specification
Power 0.25 to 12W (idle to peak)
DC input voltage +12.0 VDC at 1.0A maximum
Power adaptor Universal AC/DC
~4.05 x 1.93 x 1.31 in. (~10.3 x 4.9 x 3.35 cm)
~4.23 oz (120 g) for the AC-input external power adaptor
~4.9 ft (1.5 m) DC cord
6 ft (1.8 m) cord
UL/cUL, CE approved
Class I adaptor
Ta b l e A-3 Environmental Specifications
Description Specification
Operating temperature 23 to 113F (-5 to 45C)
Non-operating temperature –13 to 158F (–25 to 70C)
Relative humidity 5 to 95% noncondensing
Ta b l e A-4 Physical Interfaces
Description Specification
Ethernet One RJ-45 connector, IEEE 802.3 100BaseT standard
Analog phone Two RJ-11 FXS voice ports
Power 12 VDC power connector
Power switch Power switch to turn the ATA 187 on or off