Number of ports:                  4 ports per card

Network Interface:                 Loop-Start

Processor:                               TMS320C52

System requirements:             PC IBM Compatible

Operating Systems:                 Linux/FreeBSD/Windows NT/Windows 2000

Host Interface

Bus:                                16 bit ISA
Base Addresses:            0x300-0x3f0

Trunk Type:                   Loop-Start
Impedance:                    Complex
Ring Detection:             50V AC RMS super-imposed
                                        on 48V DC for cadences having
                                        an on period of 200ms and
                                        frequencies 14.5Hz-55Hz.
Loop Current:                20mA
Cross-Talk coupling:     <-60dB
Connector:                     RJ-11 Type

+5V,-5V:                       450mA, 50mA

Form factor:                            Full length ISA

Cards per system:                  Application dependent

Audio compression rates:      32kbit/s OKI-ADPCM
                                                64kbit/s A-Law, Mu-Law
                                                128kbit/s Linear

Sampling device:                   8-bit ADC-DAC @ sampling at 8kHz
Frequency response:             300-3400Hz
Receive range:                       -28dB to  +6dB
Transmit/Receive range:       Programmable -12dB to 12dB

Cut-thru DTMF detection:    0-9,*,#,A,B,C,D

EMI/Telecom Approvals:     Australia seeking international

Warranty:                               12 month replacement