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Installation
68P81096E37-N
39
06/28/05
Telephone Line Specifications
Most telephone companies recognize either “3002” or “Type 5” as desig-
nations to define phone line types and associated electrical specifications.
Telephone lines meeting the specifications for either of these types are ac-
ceptable for use with the station. Table 9 shows the specifications for
“3002” or “Type 5” phone line types.
Table 9. Type 5 and “3002” Phone Line Specifications
Parameter
Type 5
Specification
3002
Specification
Loss Deviation
±
4.0dB
±
4.0dB
C–Notched Noise
51dBmCO
51dBmCO
Attenuation Distortion:
504 to 2504 Hz
404 to 2804 Hz
304 to 3004 Hz
–2.0 to +8.0dB
–2.0 to +10.0dB
–3.0 to +12.0dB
–2.0 to +8.0dB
–2.0 to +10.0dB
–3.0 to +12.0dB
Signal To C–Notched Noise
Ratio
≥
24dB
≥
24dB
Envelope Delay Distortion:
804 to 2604Hz
1750
µ
sec
1750
µ
sec
Intermodulation Distortion:
R2
R3
≥
27dB
≥
32dB
≥
25dB
≥
30dB
Phase Jitter:
20 to 300Hz
4 to 300Hz
≤
10 Degrees
≤
15 Degrees
≤
25 Degrees
≤
30 Degrees
Frequency Shift
±
3Hz
±
5Hz