Section 150-388-124
Revision 01
Page 11
8. SPECIFICATIONS
HDSL Line Code
784 kbps 2B1Q
HDSL Output
+13.5 dBm
±
0.5 dB at 135 ohms
HDSL Line Impedance
135 ohms
Maximum Provisioning Loss
35 dB at 196 kHz, 135 ohms
Line Clock Rate
Internal Stratum 4 clock
HDSL Start-up Time
30 seconds (typical), 60 seconds (maximum) per span
One-way DS1 Delay
<220 microseconds per span
DSX-1 Line Impedance
100 ohms
DSX-1 Pulse Output
Pre-equalized for 0 to 655 feet
of ABAM-specification cable
DSX-1 Input Level
+1.5 to -7.5 dBDSX
DSX-1 Line Rate
1.544 Mbps
±
200 bps
DSX-1 Line Format
AMI, B8ZS or ZBTSI
DSX-1 Frame Format
ESF, SF or UNFR
Maximum Power Consumption
14 Watts (without doubler); 25 Watts (with doubler)
Maximum Heat Dissipation
6 Watts (without doubler); 9 Watts (with doubler)
Fusing
Internal; connected to Fuse Alarm output on pin 10
HDSL Span Voltage (Differential)
130 or 200 Vdc
Margin Indicator
Displays HDSL loop SNR margin for each HDSL loop
relative to 10
-7
BER operation
Electrical Protection
Secondary surge protection on DS1 and HDSL ports;
Power cross protection on HDSL ports
Operating Temperature and Humidity
-40
°
to +65
°
Celsius, 5 to 95% (non-condensing)
Mounting
Type DDM
+
, high density shelf or equivalent
Dimensions
Height:
3.5 in.
(8.9 cm)
Width:
0.72 in.
(1.8 cm)
Depth:
10.25 in. (26 cm)
Weight: TBD
9. CERTIFICATION
9.01
FCC compliance: The HLU-388, List 2D was
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 upon in a commercial environment. This
equipment generates, uses and can radiate radio frequency
energy. If it is not installed and used in accordance with the
instruction manual, harmful interference to radio
communications may result. 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.
