Filter
Top Products
Appendix A - Specifications LTPH-UM-1031-03, Issue 3
58 September 12, 2003 H4TU-C-319 List 1
APPENDIX A - SPECIFICATIONS
Power
Line Voltage 0, -185 Vdc, ±123 Vdc (Voltage is applied across Loop 1 and Loop 2.)
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 61.
Electrical Protection Secondary surge and power cross-protection on HDSL4 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. (0.23 kg)
Mounting 3192 high-density mechanics shelf
HDSL4
Line Code 784 kbps Overlapped Pulse Amplitude Modulation (OPAM) transmission per pair per
HDSL4 standard in ANSI T1.418 Issue 2
Transmission Full duplex
CSA Reach 34 kft. maximum using 26 AWG wire: 12kft. (span 1), 11 kft. (span 2), 11 kft. (span 3)
Media One non-loaded, copper, four-wire cable pair
Output +14.1 dBm ±0.5 dBm at 135Ω
Line Impedance 135Ω
Maximum Insertion Loss Span 1 = 47 dB at 196 kHz
Span 2 and Span 3 = 43 dB at 196 kHz
Maximum Loop Attenuation Span 1 = 31 dB
Span 2 and Span 3 = 29 dB
Start-Up Time 30 sec. (typical), 1 min. (maximum)
DSX-1
Line Impedance 100Ω
Line Rate 1.544 Mbps ±200 bps
Line Format Alternate Mark Inversion (AMI) or Bipolar with 8-Zero Substitution (B8ZS)
Frame Format Extended SuperFrame (ESF), SuperFrame (SF), or Unframed (UNFR)
Pulse Output 6 V
pk-pk
pre-equalized for 0 to 655 feet of ABAM cable
Input Level +1.5 to -7.5 dB DSX