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Overview
ETU-752C D
The ETU-752C is housed in a plastic enclosure with interface and power
connectors for use as an integrated desktop unit. All functions of the
ETU-752C, with exception of power requirements, are identical to the
UTU-702C. The ETU-752C requires a source of 100 to 240 volt, 50 or 60 Hz,
AC power.
I
NTEROPERABILITY
The UTU-702C and ETU-752C are interoperable with the UTU-702 and/or
ETU-752.
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
-7
model is 10
various HDSL line rates over one twisted-pair of 0.4 mm and 0.51 mm copper
wire are listed below.
HDSL Line
Rate (kbps)
128
256
384
512
768
1152
1536
2048
(a) A selected HDSL line rate of 64 kbps is transmitted at 128 kbps.
(b) The maximum no-noise transmission range is approximately 8.5 km.
2
ESKTOP
R
ANGES
. 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
5.0 km (16,404 ft.)
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.)
U
NIT
'
June 14, 2002
700-702-900-04, Revision 04
0.51mm (24 AWG)
Single Twisted-Pair
Copper Wire
6.3 km (20,669 ft.)
5.1 km (16,732 ft.)
4.7 km (15,420 ft.)
4.5 km (14,764 ft.)
4.1 km (13,451 ft.)
3.4 km (11,155 ft.)
2.9 km (9,514 ft.)
2.3 km (7,546 ft.)
UTU-702C and ETU-752C List 1
(b)
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