Cable Lengths - Siemens DataNET Hub (DNH) User Manual

Signal Equalizer Settings for Non Recommended Cable or Unknown

Cable Lengths,

Instructions &
Examples
2000585-001
Continued
This procedure is for determining the DataNET Signal Equalizer Board
settings for other than the recommended cable or if the cable run lengths
are unknown.
Step
1. To determine appropriate settings for attenuator boards, be-
gin by measuring signal levels at the various ports (use either
Option 1 or 2).
Important
The cables should be removed from all but one port at a time.
This allows the one connected port to come on line and oper-
ate, thus allowing measurement of signal level.
2. Sequentially go through the ports, and measure and record
the signal level of the response
Example:
Action
Port # Signal Level
1
1.6 v p-p
2
1.75 v p-p
4
1.25 v p-p
6
4.8 v p-p
8
4.5 v p-p
Installation • • • • 39