86 Q Chapter 6 - SpecificationsVoice/Data TransmissionVoice Path from Digital Keyphones to the DBS 576Data Communication PortsModem Speed ThroughputChannel SpeedOverall communications path 256 kbpsD-channel data 16 kbpsB-channel data 64 kbpsPort ParametersSerial Port 1 Interface: RS232-CBaud rate: 300, 600, 1200, 2400, 4800, 9600 BpsParity: Even, odd, noneStop bit length: 2 or 1Data bit length: 7 or 8Maintenance (Built-in)(Emergency)Baud rate: 300Stop bit length: 1Data bit length: 8Parity: NoneSerial Port 2 Interface: RS232-CBaud rate: 300, 600, 1200, 2400, 4800, 9600 BpsParity: Even, odd, noneStop bit length: 2 or 1Data bit length: 7 or 8NOTE: The DBS 576 is capable of passing modem speeds up to 31,200 bps or less, depending on thetype and quality of the trunks and facilities used.Modem Speed: 9,600 - 33,600 bpsProtocol: ITU-T V.34Error Control: Enabled (ITU-T V.42)Data Compression: Enabled (ITU-T V.42bis)Analog PortsAEC to AEC in the same switch: 28,800 bps (maximum)(Loss: 0 dB)AEC to LS or GS Trunk in the same switch: 31,200 bps (maximum) - 16,800 bps (minimum)(Loss: 0 - 17 dB, 24 AWG)AEC to DID Trunk in the same switch: 31,200 bps (maximum) - 21,000 bps (minimum)(Loss: 0 - 17 dB, 24 AWG)AEC to E&M/2-Wire: 24,000 bps (maximum) - 9,600 bps (minimum)(Loss: 0 - 17 dB, 24 AWG)AEC to E&M/4-Wire: 26,400 bps (maximum) - 14,400 bps (minimum)(Loss: 0 - 17 dB, 24 AWG)Digital (ISDN) PortsBRI to actual line: 26,400 bps (maximum)T-BRI to S-BRI: 28,800 bps (maximum)T-PRI to S-PRI: 28,800 bps (maximum)
