Section 150-319-251
Revision 01
Page 3
2.04
The ELU to ERU operating ranges, on
unimpaired cable pairs, are shown in Table
2 as a function of cable gauge and average margin.
TABLE 2. HIGAIN E1 RANGES (KM) ON
UNIMPAIRED CABLES VS AVERAGE
MARGIN(M) IN DB
Cable Gauge
M = 11
M = 7
M = 3
0.4 mm / #26 AWG
2.7km
3.0km
3.3km
0.51 mm / #24
AWG
3.6km
4.0km
4.4km
0.61 mm / #22
AWG
4.7km
5.2km
5.7km
0.81 mm / #19
AWG
6.6km
7.3km
8.0km
2.05
The ELU-319, List 5 and 6 line units can
only
support applications requiring an ERU
(remote unit) or one ERU and one EDU (double
unit). They can not support two doubler
applications. For one doubler applications the ERU
must be locally powered.
3. SPECIFICATIONS
HDSL Line Code
1040 kbps, 2B1Q
HDSL Output
+13.5 dBm ± 0.5 dB @ 135 ohms
HDSL Line Impedance
135 ohms
Maximum Provisioning Loss
35 dB @ 260 kHz, 135 ohms
Line Clock Rate
Internal Stratum 4 clock
HDSL Startup Time
30 seconds (typical), 60 seconds (maximum)
One-way G.703 Delay
Less than 220 microseconds
G.703 Line Impedance
List 5: 75 ohms
List 6: 120 ohms
G.703 Input Level
+1.5 to -7.5 dB
G.703 Line Rate
2.048 Mbps ± 200 bps
G.703 Line Format
HDB3
Power Consumption
14 watts (typical), 18 watts (maximum)
Heat Dissipation
6 watts (typical), 8 watts (maximum)
Fusing
Internal, 1.25 amps @ 125V; connected to
FUSEALARM output on pin 10
Span Voltage
-136V dc ± 4V dc
Margin Indicator
Displays span SNR margin for both spans relative
to 10
-7
BER operation
Electrical Protection
Secondary surge protection on G.703 and HDSL
ports
Power cross protection on HDSL ports
Operating Temperature and Humidity
-40° to 65° Celsius, 5 to 95% (non-condensing)
Mounting
STS, 28-slot, high-density shelf
Dimensions
Height: 4.75 in. (12.07 cm)
Width:
0.7 in. (1.78 cm)
Depth:
10.5 in. (26.67 cm)
4. CERTIFICATION
4.01
FCC compliance: The ELU-319 has been
tested and found to comply with the limits
for Class A digital devices pursuant to Part 15 of the
FCC rules. These limits are designed to provide
reasonable protection against harmful interference
when the equipment is operated in a commercial
environment. This equipment generates, uses and
can radiate radio frequency energy and, if not
installed and used in accordance with the instruction
manual, may cause harmful interference to radio
communications. Operation of this equipment in a
residential area is likely to cause harmful
interference in which case the user will be required
to correct the interference at his own expense.
