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2 Section 61242.047L2-13, Issue 1 61242.047L2-13A
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WORKING LENGTH OF 26 GAUGE CABLE (KFT)
WORKING LENGTH OF 24 GAUGE (OR COARSER) CABLE (KFT)
56789
2.5
INVALID HDSL CABLE LENGTHS
2.0
1.5
1.0
0.5
0.0
TOTAL
BRIDGED
TAP
LENGTH
(KFT)
VALID HDSL CABLE LENGTHS
ADTRAN Customer Service:
ADTRAN Telco Technical Support ............... (800) 726-8663
Standard support hours ................................ Monday-Friday
7 a.m. - 7 p.m. CST
Emergency support ................... 7 days/week, 24 hours/day
Sales ............................................................. (800) 827-0807
RMA (repair service).................................... (205) 963-8722
Repair and Return Address:
ADTRAN, Inc.
Customer Service Department
901 Explorer Boulevard
Huntsville, Alabama 35806-2807
These approximations are to be used as guidelines
only and may vary slightly on different loops. Adhering
to these guidelines should produce performance in
excess of 10
-7
BER.
Frequency (Hz) Maximum Loss (dB)
3,000 12.0
10,000 15.0
50,000 25.5
100,000 30.0
150,000 32.75
200,000 35.25
Loop Insertion Loss Data
Cable Cable Temperature:
Gauge Type 68° 90° 120°
26 PIC 3.902 4.051 4.253
26 Pulp 4.030 4.179 4.381
24 PIC 2.863 2.957 3.083
24 Pulp 3.159 3.257 3.391
22 PIC 2.198 2.255 2.333
22 Pulp 2.483 2.45 2.629
19 PIC 1.551 1.587 1.634
19 Pulp 1.817 1.856 1.909
HDSL Loss Values
(200 kHz cable loss in dB/kft at 135
Ω
)
Channel Bank
Backplane
Central Office Customer Premises
2B1Q
12 kft 24-AWG
9 kft 26-AWG
(max.)
Loop 1 Loop 15
6
3
4
FT1-DP FT1-Repeater
DS1
7
13
5
15
FNID
55
49
2B1Q
12 kft 24-AWG
9 kft 26-AWG
(max.)