ADC HDSL4, H4TU-C-319 List 1 Line Unit user manual Appendix a Specifications

Appendix A - Specifications LTPH-UM-1031-03, Issue 3

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 Vpk-pkpre-equalized for 0 to 655 feet of ABAM cable
Input Level	+1.5 to -7.5 dB DSX

58 September 12, 2003 H4TU-C-319 List 1