Cable Lengths - Siemens DMS8000 Application & Planning

5.2.2

Cable lengths

Building Technologies
CPS Fire Safety
Fig. 48 10BaseT network with up to 4 repeaters in serial star topology
100Mbps network
For a 100Mbps network, it is not possible to extend the line length with the 5-4-3 re-
peater rule. This is due to the faster speed.
The maximum number of repeaters in serial for 100Mbps Ethernet is 2.
Optimally, you should use Cat. 6 twisted pair cable.
Note: the maximum cable length is 100 meters, installed as follows:
- 90 meters fixed installed cable (Horizontal cabling)
- 10 meters patch cables (both sides together)
The cable length for fibre optic depends on the Ethernet technology employed.
® Please refer to the table in section 5.5.4, Ethernet on page 86.
049_DMS_DMS8000_Application_Specification_Planning_MP4.81_A6V10063710_a_en.doc
NK8000 network planning
09.2016
77