ADC 2, and 3 Doubler, HDU-409 Lists 1 APPENDIX B - SPECIFICATIONS, HDSL, Maximum, Latency, Mounting, Line Clock Rate, Power Dissipation, Provisioning Loss, Wander and Jitter, Electrical Protection

LTPH-UM-1234-01 Appendix B - Specifications

APPENDIX B - SPECIFICATIONS

Appendix A lists the specifications for the HDU-409.

HDSL

Line Code	784 kbps, 2B1Q full duplex
Output	+13 dBm
Line Impedance	135Ω
Resistive Signature	5Ω (typical)
Input/Output
Start-up Time	15 seconds (typical), 30 seconds (maximum)
(per span)
Line Clock Rate	Internal Stratum 4 clock
Power Dissipation	3.0W (nominal)
Maximum	35 dB @ 196 kHz, 135Ω
Provisioning Loss
Wander and Jitter	Nominal - The absence of an HDSL framer from the
	HDU-409 reduces the Doubler Unit effect on a
	circuit’s overall wander and jitter to second order
	insignificance when compared to the wander and jitter
	of other circuit modules.
Latency	80 ∝s (maximum either direction)
Mounting	Single 239 T1 Mechanics slot
Electrical Protection	Secondary surge and power cross protection on all
	HDSL ports

HDU-409 Lists 1, 2, and 3 April 30, 2003 27