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Section 300-Installation Chapter 7. Specifications
DBS-2.3/9.2-300 DBS Manual - Revised April 2000 7-15
Signaling Characteristics
Table 7-14. Signaling to CO
Table 7-15. Signaling levels
Table 7-16. Transmission specifications
Item Specification
Dial pulse 8 to 11 pulses per second (PPS)
Break ratio 58 to 64%
Minimum pause 0.7 to 1.0 seconds
Trunk start Loop or ground start
Item Level Distortion
Trunk input (DISA) -40 dBm (minimum) Less than 10%
Output from DBS (at MDF) High level: -8 dBm (minimum)
Low level: -10 dBm (minimum)
Analog station input (Dial
status)
-35 dBm (minimum) Less than 10%
Analog station output (Talk
path originated from a key
phone to an SLT)
High level: -8 dBm+/-0.5 dBm
Low level: -6 dBm+/-0.5 dBm
Less than 5%
Item Specification
Impedance 600 Ohms
Overload level 600 Ohms
Insertion Loss
CO trunk to analog station 0 dB
Analog station to CO trunk 0 dB
CO trunk to digital station 0 dB
Digital station to CO trunk 0 dB
Digital station to digital station 6 dB
Digital station to analog station 6 dB
Analog station to digital station 6 dB
Analog station to analog station 6 dB