MEDIA SPECIFICATIONS AND REQUIREMENTS
B-4
UTP consists of four pairs of 24 AWG solid wire for data or voice
communication and is typically used to wire cable runs within the walls of
buildings. In some installations, existing UTP building wiring can be used
for Token Ring cabling. UTP cable must conform to the limits shown in
Table B-4.
Better grades of UTP cable known as supergrade or level 4 are now
available. These improved grades of UTP can often be used to permit
operation at 16 Mbps on longer lobe cables.
Attenuation and Impedance
The attenuation values shown in Table B-4 include the attenuation of the
cables, connectors, patch panels, and reflection losses due to impedance
mismatches in the segment.
Table B-4. UTP Voice Grade and Category 3 Specifications
Frequency
Impedance
Attenuation
1 MHz
100
Ω
±
15%
<26 dB/km (8 dB/1000 ft.)
4 MHz
100
Ω
±
15%
<56 dB/km (16 dB/1000 ft.)
10 MHz
100
Ω
±
15%
<98 dB/km (30 dB/1000 ft.)
16 MHz
100
Ω
±
15%
<131 dB/km (40 dB/1000 ft.)
Summary of Contents for BRIM-T6
Page 1: ...BRIM T6 USER S GUIDE ...
Page 2: ......
Page 14: ...INTRODUCTION 1 6 ...
Page 26: ...CONNECTING TO THE NETWORK 3 4 ...