Section 150-319-254
Revision 02
Page 10
Figure 5. HDSL Line Voltage
Switch S2
7. INSTALLATION
7.01
Upon receipt of equipment, visually
inspect it for signs of damage. If the
equipment has been damaged in transit,
immediately report the extent of damage to the
transportation company and to PairGain
Technologies.
7.02
The ELU-319 mounts in the PairGain
HMS-318 shelf. The auxiliary PairGain
connector panel, HCP-322, connects to the HMS-
318 shelf and provides G.703, BNC connector
access (75 ohm or 120 ohm) to each of the 22 slots.
The ELU-319 slot pin-outs are shown in Figure 3.
8. SPECIFICATIONS
HDSL Line Code
1040 kbps, 2B1Q
HDSL Output
+13.5 dBm ± 0.5 dB @ 135 ohms
HDSL Line Impedance
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 5D: 75 ohms
List 6D: 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
12 watts (no doubler), 21 watts (doublers)
Heat Dissipation
6 watts (no doubler), 8 watts (doublers)
Fusing
Internal, 1.25 A at 125 V, connected to
FUSEALARM output on pin 10
Span Voltage
-130V dc or 200V dc
Margin Indicator
Displays loop SNR margin for both loops relative
to 10
-7
BER operation
Electrical Protection
Secondary surge protection on G.703 and HDSL
ports
Power cross protection on HDSL ports