Hn4000 Metro Ethernet Copper Access Switch Overview; The Tdr-Enabled Hn4000E Switches - Hatteras HN4000 Hardware Installation Manual

1-2

HN4000 Metro Ethernet Copper Access Switch Overview

1.2 HN4000 Metro Ethernet Copper Access Switch Overview
The HN4000 Metro Ethernet Copper Access switches are full featured high‐performance access
devices that deliver integrated voice, data, and video services based on Ethernet access over
voice‐grade copper pairs.
The HN4000 switches provide the following features:
❒
Mounts in a standard 19 inch, 23 inch, or 600 mm rack or cabinet
❒ Front‐panel accessible ‐ no rear clearance required for side‐exhaust models
❒
Dual‐feed power connectors — powered from one or two ‐48 VDC power sources.
❒
40 pairs of 2BASE‐TL per switch (IEEE 803.3ah standard for Ethernet transport over
G.SHDSL)
❒ Support for the Extended‐Rate Single‐Pair High‐Speed Digital Subscriber Line (E‐SHDSL)
transmission technology
❒
Modular high‐speed network interfaces
❒
NEBS Level 3/ETSI certified
❒
In‐band and out‐of‐band Network Management
❒
Dual versions of the system software on the switch
1.3

The TDR-Enabled HN4000e Switches

In addition to the HN4000 features described above, the HN4000e switches provide the follow‐
ing built‐in line testing facilities:
❒
Time Domain Reflectometer (TDR)
❒
a tone generator (for pair detection)
❒
open/short creation (for pair detection)
Using the built‐in TDR facilities, a technician can perform testing at the switch or from a
remote location (NOC):
❒
No physical wiring access effort is required
❒
Simple operator commands initiate tests ‐ and return results
❒
Targeted algorithms yield determinate test results – pin‐pointing problems
❒
Issue resolution can proceed immediately
HN4000 Hardware Installation Guide 920550-5020 Rev 14