For use in Total Access 1500 integrated access devices.
The Dual 4-Wire DX provides for two individual 4-wire analog interfaces between a VF transmission and signaling facility and the Total Access 1500 Pulse Coded Modulation (PCM) backplane.
Feature and Benefits
Two independent DC-isolated 4-wire VF channel interfaces
Supports 2-state Fixed and Switched-Bias methods of DX type signaling
Supports equalizer prescription settings as defined in AT&T 855-351-105
Supports 150,600 and 1200 ohms input/output termination impedance
Supports loaded and nonloaded cable types
Extended operating temperature range from -40 ??C to +65 ??C
TLP transmit input range of -16.0 to +1.0 dBm in 0.1 dB increments
TLP receive output range of -12.0 to +6.0 dBm in 0.1 dB increments
Provisioning by craft interface or Site Manager
Digital Loopback and 1004 Hz Digital Reference Signal (DRS)Tone test via craft port or Site Manager
NEBS Level 3 and UL 1950 compliant