ADC and 3 Doubler - Manual (Page 33)

LTPH-UM-1234-01 Appendix B - Specifications
HDU-409 Lists 1, 2, and 3 April 30, 2003 27
A
PPENDIX
B - S
PECIFICATIONS
Appendix A lists the specifications for the HDU-409.
HDSL
Line Code 784 kbps, 2B1Q full duplex
Output +13 dBm
Line Impedance 135
Ω
Resistive Signature
Input/Output 5
Ω
(typical)
Start-up Time
(per span) 15 seconds (typical), 30 seconds (maximum)
Line Clock Rate Internal Stratum 4 clock
Power Dissipation 3.0W (nominal)
Maximum
Provisioning Loss 35 dB @ 196 kHz, 135
Ω
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
µ
s (maximum either direction)
Mounting Single 239 T1 Mechanics slot
Electrical Protection Secondary surge and power cross protection on all
HDSL ports