ADC Double Pair/Line Power HDSL Specification Sheet page 2

WorldDSL
Economical, Reliable, and Manageable E1 and Serial Data Deployment
Features
• Fiber optic quality (BER 10
• LTUs can provide line powering for up to two
doublers for very long reach loops
• LTUs can provide wetting current to reduce
corrosion of connections
• Point-to-multipoint configurations where a single
central office card can operate two 1 Mbps
remote NTUs each via a single twisted pair to
reduce system costs
Single Span Reach
RANGE (KILOMETERS)
9
8
7
6
5
4
3
2
1
0
0.40 mm 0.51 mm 0.64 mm
Wire Gauge (mm)
Figure 1
2 Span Single Doubler Reach
RANGE (KILOMETERS)
20
18
16
14
12
10
8
6
4
E1 (G.703)
120/75Ω
2
0.40 mm 0.51 mm 0.64 mm
Serial
Wire Gauge (mm)
V.35/V.36/RS-530/X.21
Figure 2
Typical 3-Span Extended Reach with doublers line powered and remote UTU locally powered
3 Span Two Doublers Reach
RANGE (KILOMETERS)
20
* Can be line powered from LTU or AC or DC local powered
18
** AC or DC local power required
16
14
12
w w w . a d c . c o m
10
8
6
4
HDSL
™
Single Span Reach
RANGE (KILOMETERS)
9
8
7
)
-10
6
5
4
3
2
1
0
0.40 mm
Wire Gauge (mm)
2 Span Single Doubler Reach
RANGE (KILOMETERS)
20
18
16
14
12
10
8
6
4
2
0.91 mm 0.40 mm
MAXIMUM
Wire Gauge (mm)
TYPICAL
MINIMUM
G.703
3 Span Two Doublers Reach
120/75Ω LTU or
RANGE (KILOMETERS)
UTU
20
Serial
V.35/V.36/RS-530/X.21
18
16
14
Typical Single Span Applications
12
10
8
EDU
6
LTU
4
0.91 mm
2
MAXIMUM
0.40 mm
TYPICAL
MINIMUM
• + 1 - 9 5 2 - 9 3 8 - 8 0 8 0
20
18
16
14
• User software selectable dataport interface
12
• Single pair mode where the unit uses only one pair
10
at a maximum rate of 1Mbps
• Timeslot priority mode where, if one of the two
HDSL pairs fails, the FAS, signaling and first 15 voice
channels are switched to the operating pair
0.51 mm 0.64 mm 0.91 mm
MAXIMUM
Figure 1
TYPICAL
MINIMUM
0.51 mm 0.64 mm 0.91 mm
MAXIMUM
Figure 2
TYPICAL
MINIMUM
UTU*
V.35/V.36/RS-530/X.21
3.2 Km on 0.4 mm
5.3 Km on 0.64 mm
EDU
0.51 mm 0.64 mm 0.91 mm
Wire Gauge (mm)
MAXIMUM
Figure 3
7.5 Km on 0.4 mm TYPICAL
MINIMUM
12.5 Km on 0.64 mm
• 1 - 8 0 0 - 3 6 6 - 3 8 9 1
0
0.40 mm 0.51 mm 0.64 mm
Wire Gauge (mm) MAXIMUM
Figure 1
TYPICAL
MINIMUM
2 Span Single Doubler Reach
RANGE (KILOMETERS)
8
6
4
2
0.40 mm 0.51 mm 0.64 mm
Wire Gauge (mm)
MAXIMUM
Figure 2
TYPICAL
MINIMUM
3 Span Two Doublers Reach
RANGE (KILOMETERS)
20
18
16
14
12
10
8
6
4
2
0.40 mm 0.51 mm 0.64 mm
Wire Gauge (mm)
Figure 3
G.703
120/75Ω
Serial
E1 (G.703)
120/75Ω
UTU**
Serial
V.35/V.36/RS-530/X.21
0.91 mm
0.91 mm
0.91 mm
MAXIMUM
TYPICAL
MINIMUM
2