Specifications

RADring
Installation & Operation Manual System Installation
3/11/98 12:29 Cabling 3-11
3.10 Cabling
Cabling is one of the most critical components in any data network,
especially in high-speed networks such as the Token Ring and Ethernet. By
using only high quality cabling of certified performance, manufactured by
reputable companies, can significant improvement in network reliability and
performance be achieved. Cabling for use with Token Ring networks is
usually classified in accordance with the closest-matching cable type
specified by ICS, the IBM cabling system.
Table 3-6 Cabling Specifications
Cable Types Description Approximate
Atenuation dB/km
4Mbps 16Mbps
Longest
Recommended
Segment (4Mbps)
Next Crosstalk
@ 16MHz
Type 1
Data Cable
Two shielded twisted
pairs of #22 AWG
solid copper
conductors. Available:
plenum, non-plenum
22 45 300 meters -40 dB
Type 2
Data and
Telephone
Cable
Two shielded twisted
pairs (as Type 1) plus
four voice grade pairs
#22 AWG
22 45 300 meters -40 dB
Type 3
“Telephone
Twisted pair”
Available: 2, 3, 4 or
25 twisted pair of #24
AWG UTP
50 100 100 meters -28 dB
T&T Systemax
2061A
Super UTP Cable with
special polymer
insulator
40 82 -44 dB
Northern
Telecom BDN
Super UTP Cable with
special polymer
insulator
45 93 -37 dB
Type 5
Fiber Optic
Cable
Two multi-mode
optical fibers in three
grades:
50/100
62.5/125
100/140
3
4
6
3
4
6
Up to 3,000 meters None
Type 6
Patch Cord
Cable
Two twisted pairs of
#26 AWG with
braided shield
33 66 -34 dB
Type 9
Low Cost
Data
Cable
Two shielded twisted
pair of #26 AWG
copper conductors
33 66 200 meters -34 dB