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LTPH-UM-1049-02, Issue 2 Appendix A - Specifications
H2TU-C-319 List 4E January 9, 2002 65
APPENDIX A - SPECIFICATIONS
Power
HDSL2 Span Voltage 0 or -180 ±5 Vdc
CO Supply -48 Vdc nominal (-42.5 Vdc to -56.5 Vdc)
See “Power Consumption” and “Maximum Power Dissipation” and “Maximum
Current Drain” on page 66.
Electrical Protection Secondary surge and power cross protection on HDSL2 ports. Requires external
primary protection.
Fusing Internal; connected to “FUSE ALARM” output on pin 10
Environmental
Operating Temperature -40°F to +149°F (-40°C to +65°C)
Operating Humidity 5% to 95% (non-condensing)
Physical
Height 4.750 in. (12.10 cm)
Width 0.625 in. (1.59 cm)
Depth 10 in. (25.4 cm)
Weight 0.5 lb (.23 kg)
Mounting 3192 mechanics shelf
HDSL2
Line Code 1.552 Mbps OPTIS
Transmission Full duplex
Media One non-loaded, copper, two-wire cable pair
Output +13.8 dBm ±0.5 dB at 135Ω (0-450 kHz) at CO side;
+13.5 dBm ±0.5 dB at 135Ω (0-350 kHz) at remote side
Line Impedance 135Ω
Maximum Provisioning Loss 35 dB at 196 kHz
Start-up Time 30 sec. typical, 1 min. maximum per span
DSX-1
DSX-1 Line Impedance 100Ω
DSX-1 Pulse Output 6 V
pk-pk
pre-equalized for 0-655 feet of ABAM cable
DSX-1 Input Level +1.5 to -7.5 dB DSX
System
One-way DS1 Delay <400 µs per span without regenerators
Wander (Looped) Meets MTIE T1.101 requirements
Wideband Jitter (Looped) 0.2 UI maximum
Narrowband Jitter (Looped) 0.1 UI maximum