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Overview
The UTU-701C accepts the DTE payload at its G.703 port and transports the
data to the remote unit at the selected HDSL rate. The UTU-701C requires
-36 to -72 Vdc from a local power supply or an enclosure's AC-to-DC power
supply; it does not supply power to other HDSL units.
ETU-751C D
The ETU-751C is housed in a plastic enclosure with interface and power
connectors for use as an integrated desktop unit. All functions of the
ETU-751C, with exception of power requirements, are identical to the
UTU-701C. The ETU-751C requires a source of 100 to 240 Vac at
50 or 60 Hz.
T
RANSMISSION
Transmission ranges assume the presence of noise according to the ETSI
model described in TS 101 135. The expected Bit Error Rate (BER) under this
model is 1x10
various HDSL payload rates over one twisted-pair of 0.4 mm and 0.51 mm
copper wire are listed below.
HDSL Payload
Rate (kbps)
256
384
512
768
1152
1536
2048
(a) A selected HDSL payload rate of 64 or 128 kbps is transmitted at
256 kbps (see
(b) The maximum no-noise transmission range is approximately 7.1 km
(4.4 miles).
2
ESKTOP
R
ANGES
-7
. The transmission ranges in such a noise environment at the
Transmission Ranges with ETSI Noise
Wire Size and Transmission Range (with ETSI Noise)
0.4mm (26 AWG)
Single Twisted-Pair
(a)
Copper Wire
4.1 km (13,451 ft.)
3.9 km (12,795 ft.)
3.5 km (11,483 ft.)
3.2 km (10,499 ft.)
2.6 km (8,530 ft.)
2.2 km (7,218 ft.)
1.9 km (6,234 ft.)
"HDSL Payload Rates" on page
June 5, 2002
U
NIT
'
0.51mm (24 AWG)
Single Twisted-Pair
5.1 km (16,730 ft.)
4.7 km (15,420 ft.)
4.5 km (14,760 ft.)
4.2 km (13,779 ft.)
3.4 km (11,155 ft.)
2.9 km (9,515 ft.)
2.4 km (7,874 ft.)
18).
UTU-701C and ETU-751C List 1
700-701-900-02, Revision 02
Copper Wire
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