150-319-142-01
December 22, 1997
Revision 01
HLU-319 List 4B
PairGain Engineering - Plant Series
3
A HiGain system operates with a variety of other T1, POTS, Digital Data
Service (DDS) equipment or other HiGain systems sharing the same cable
binder group. HiGain systems provide temporary or permanent DS1 service
and can provide a means of deploying service in advance of fiber-optic
transmission systems.
S
PECIFICATIONS
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 dB DSX
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 4.8 Watts
Maximum Heat Dissipation
4.0 Watts
Fusing
Internal; connected to Fuse Alarm output on
pin 10
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
Summary of Contents for 150-1140-42
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