Filter
Top Products
A - 6 ONline Ethernet 24-Port 10BASE-T Module Installation Guide
Twisted Pair Cable Specifications
The cables that are supported must meet the following specifications:
❑ 22, 24, or 26 gauge twisted pair cable
❑ 80 to 150 ohm impedance
❑ Minimum of 2 pairs
A pair is usually a solid color wire twisted with a striped wire of the same
color.
Table A-6 lists the specifications for IBM cable types 1, 2, 6, and 9. These
cable types are IEEE 802.5 compliant and are ETL (ETL Testing Laboratories)
verified.
Table A-6. IBM Twisted Pair Cable Specifications
IBM Type
No. of
Pairs
AWG Shielding
Nominal
Impedance
1
(non-plenum)
222 (solid
bare
copper)
Data pairs individually
foil shielded plus 65%
tinned copper braid
150 ohms
2
(non-plenum)
6
(data 2)
(voice 4)
22 (solid
bare
copper)
Data pairs individually
foil shielded plus 65%
tinned copper braid.
Voice pairs
non-shielded*
Data 150
ohms
Voice 105
ohms
6
(non-plenum)
2 26 (7x34
bare
copper)
Overall foil shielded
pairs plus 65% tinned
copper braid
150 ohms
9 (plenum) 2 26 (7x34
bare
copper)
Individually foil
shielded plus 65%
tinned copper braid
150 ohms