Lucent Technologies FiberReach DDM-2000 - Transmission Specifications - Multiparty and FSR Channel Units

363-206-305
Technical Specifications
10-68
Issue 3 June 2000
Table 10-30. Transmission Specifications — Multiparty and FSR Channel
Units
Value (Measured at 25
°
C
)
Parameter Multiparty** FSR
Loop Resistance (Beyond the HDT
excluding the set)
0-1500
Ω
0-900
Ω
1,004 Hz On-Hook Loss
≤
5 dB over 1004 Hz
Off-Hook Loss
On-hook transmission
not supported
Loop Current > 20 mA
1000-Hz Loss (
±
0.5 dB typical,
±
1.0 dB max)
1 dB
Bandwidth (Relative to the 1,004-Hz
loss) *
−
0.5 to
+
1.0 dB at 400 Hz and 2,800 Hz
Return Loss at the COT † ERL
≥
18 dB, SRL
≥
10 dB
Return Loss at the HDT ‡ ERL
≥
18 dB, SRL
≥
10 dB
Idle Channel Noise (at the HDT) 20 dBrnC Maximum
Signal-to-Distortion Ratio
(at
−
10 dBm)
> 33 dB
Dial Pulse Distortion
[Peak to Average Ratio (PAR)]
> 90
Gain Tracking (1,004 Hz)
−
37 dBm0 to
+
3 dBm0
−
50 dBm0 to
−
37 dBm0
±
0.5 dB Maximum (
±
0.25 dB Average)
±
1.0 dB Maximum (
±
0.5 dB Average)
Intermodulation Distortion
(
−
13 dBm0 Input)
A-B (R2) Product: > 43 dB
2A-B (R3) Product: > 44 dB
Single Frequency Distortion
(0-12 kHz 0 dBm0)
<
−
28 dBm0
Impulse Noise §
≤
15 Counts in 15 Minutes
See footnotes at end of table.
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