Appendix a - specifications, A - s, Ppendix – ADC HDSL4 User Manual
Page 66: Pecifications
Appendix A - Specifications
LTPH-UM-1031-03, Issue 3
58
September 12, 2003
H4TU-C-319 List 1
A
PPENDIX
A - S
PECIFICATIONS
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)
and
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 135
Ω
Line Impedance
135
Ω
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
100
Ω
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