S P E C I F I C A T I O N S
263
Analog Extension Specifications
Telephone Line Specifications
Dimensions
Weight
Connector type
RJ-11, 2-pin
Trunk type
Loop start
Interface impedance
600
Ω
Loop range
0–600
Ω
Flash supported
Yes
On-hook voltage
35 V
Off-hook loop
voltage source
35 V
Off-hook loop current
23 mA to 40 mA
Dial tone level
-2.4 dBm
Ringing voltage
90 V RMS
Ringing frequency
20 Hz – True sine wave
Total ringing load
5 REN
Connector type
RJ-11, 2-pin
Trunk type
Loop start
Interface impedance
Configurable, 600
Ω
, 600 complex, 900
Ω
, 900 complex
Ringing impedance
3,900
Ω
Ringing sensitivity
45 V RMS @ 20 Hz
REN
0.7 B
Longitudinal balance
69 dB
Signal level
-10 dB
Distinctive ring supported
Yes
Caller ID support
FSK, all lines
Metric (mm)
51.6 x 203.2 x 213.4
Imperial (inches)
2.03 x 8.0 x 8.4
240vs
244vs
248vs
280vs
284vs
288vs
Metric (kg)
0.65
0.67
0.67
0.72
0.74
0.74
Imperial (lbs)
1.43
1.46
1.46
1.58
1.62
1.62
480vs
484vs
488vs
840vs
844vs
848vs
Metric (kg)
0.79
0.81
0.81
0.89
0.91
0.91
Imperial (lbs)
1.74
1.77
1.77
1.96
1.99
1.99
