Citel 1000 仕様ガイド
070707
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Copyright 2007 Citel plc All Rights Reserved
EXTender 1000U Dedicated Analog Line Specifications
This document provides any customer or service provider with the
necessary specification information to provide dedicated line facilities to the
EXTender 1000U.
Recommended Line Specification:
•
Two wire private circuit
•
No signaling provisions
•
600 Ohm interface
•
Sealing current recommended
•
For short haul circuits and campus cable, no conditioning
•
For longer circuits (longer than 3 miles), recommend C1 or D1 conditioning
at a power level of -12 dBm
•
PCM provision hould be lear channel 64 kilobit/s or robbed-bit signaling 56
kilobit/s channel
•
NO ADPCM
Technical Information:
1000 Hz Loss Range (Min/Max)
3dB to 20dB loss end-to-end at 1004 Hz
Frequency Response Template
Attenuation distortion relative to 1004 Hz level:
0 to 16dB
0 to 16dB
from 150 Hz thru 200 Hz
0 to 12 dB
from 200 Hz thru 300 Hz
0 to 9 dB
from 300 Hz thru 400 Hz
0 to 6 dB
from 400 Hz thru 500 Hz
0 to 3 dB
from 500 Hz thru 600 Hz
0 to 1 dB
from 600 Hz thru 1200 Hz
0 to 3 dB
from 1200 Hz thru 1800 Hz
0 to 6 dB
from 1800 Hz thru 2100 Hz
0 to 9 dB
from 2100 Hz thru 2500 Hz
0 to 12 dB
from 2500 Hz thru 2800 Hz
0 to 16 dB
from 2800 Hz thru 3700 Hz
When plotted on a semi-log graph, the plot should be a smooth U-Shaped curve.