Hatteras HN4000 User Manual

4-8 Cabling 2BASE-TL Ports
HN4000 Hardware Installation Guide 920550-5020 Rev 14
Step 2. Tosecurethecable,passatie‐wrapthroughtheconnector’stie‐wrapmountand
securethetiewraparoundtheChampconnectorshell(Figure 4‐6).
Figure 4-6 Installation of a 50 Pin 2BASE-TL Cable
Step 3. Dressthe2BASE‐TLcabletotherightoftheHN4000andthroughthelowercable‐
guideslotintheright‐sidemountingbracket.
Step 4. Terminateotherendofcablepercustomerrequirements.
4.3.1 Outside Plant 2BASE-TL Primary Protectors
The HN4000 is expected to be installed with primary protectors on the outside plant 2BASE-TL copper
pairs. The primary protectors should have a voltage limiting capability of approximately 600V at
1000V/µs.
Hatteras Networks recommends a primary protector with characteristics similar to the Bourns
455HS-BC as shown in the following table. In addition to its protection capabilities, the 455HS-BC is
well balanced for use in 2BASE-TL applications.
Characteristic Value
DCBreakdown
400V
ACBreakdown@60Hz
400V
ImpulseBreakdown@100V/μs
600V
ImpulseBreakdown@1000V/μs
650V
InsertionLoss@100MHz
<0.4dB
ReturnLoss@100MHz
>14dB
Tip&RingtoGroundCapacitiveBalance
≤1pF
LinetoLineCapacitance@1MHz
10pFtypical
LinetoGroundCapacitance@1MHz
20pFtypical
Caution

Hatteras HN4000 Specifications

General

Brand	Hatteras
Model	HN4000
Category	Switch
Language	English