User:CableCat

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Base 10 vs base 12

Fraction	Positional representation	Fraction	Positional representation	Fraction	Positional representation
Decimal base		Duodecimal base		Hexadecimal base
1/2	0.5	1/2	0.6	1/2	0.8
1/3	0.3	1/3	0.4	1/3	0.5
1/4	0.25	1/4	0.3	1/4	0.4
1/5	0.2	1/5	0.2497	1/5	0.3
1/6	0.16	1/6	0.2	1/6	0.2A
1/7	0.142857	1/7	0.186A35	1/7	0.249
1/8	0.125	1/8	0.16	1/8	0.2
1/9	0.1	1/9	0.14	1/9	0.1C7
1/10	0.1	1/A	0.12497	1/A	0.19
1/11	0.09	1/B	0.1	1/B	0.1745D
1/12	0.083	1/10	0.1	1/C	0.15
1/13	0.076923	1/11	0.0B	1/D	0.13B
1/14	0.0714285	1/12	0.0A35186	1/E	0.1249
1/15	0.06	1/13	0.09724	1/F	0.1

Ethernet splitter pinouts

Based on: Power_over_Ethernet#Pinouts

10/100 Mb/s ethernet splitter
Passtrough switch port	Pais in cable	Passtrough device	10/100 mode A, mixed DC & data
White/orange stripe	White/orange stripe	White/orange stripe	Rx +	DC +
Orange solid	Orange solid	Orange solid	Rx −	DC +
White/green stripe	White/green stripe	White/green stripe	Tx +	DC −
Blue solid		Blue solid	Unused
White/blue stripe		White/blue stripe	Unused
Green solid	Green solid	Green solid	Tx −	DC −
White/brown stripe		White/brown stripe	Unused
Brown solid		Brown solid	Unused
Extra switch port	Pais in cable	Extra device	10/100 mode A, mixed DC & data
White/orange stripe	Blue solid	White/orange stripe	Rx +	DC +
Orange solid	White/blue stripe	Orange solid	Rx −	DC +
White/green stripe	White/brown stripe	White/green stripe	Tx +	DC −
Blue solid		Blue solid	Unused
White/blue stripe		White/blue stripe	Unused
Green solid	Brown solid	Green solid	Tx −	DC −
White/brown stripe		White/brown stripe	Unused
Brown solid		Brown solid	Unused

Twisted pair ethernet variants

Name	Standard (IEEE 802.3 clause number)	Speed (Mbit/s)^[A]	Pairs required	Lanes per direction	Data rate efficiency (bit/s/Hz)^[B]	Line code	Symbol rate per lane (MBd)	Bandwidth (MHz)^[C]	Max distance (m)	Cable^[D]	Cable rating (MHz)
10BASE-T	802.3i-1990 (CL14)	10	2	1	1	PE	10	10	100	Cat 3	16
100BASE-TX	802.3u-1995 (CL25)	100	2	1	3.2	4B5B MLT-3 NRZ-I	125	31.25	100	Cat 5	100
1000BASE‑T	802.3ab-1999 (CL40)	1,000	4	4	4	TCM 4D-PAM-5	125	62.5	100	Cat 5	100
2.5GBASE-T	802.3bz-2016 (CL126)	2,500	4	4	6.25	64B65B PAM-16 128-DSQ	200	100	100	Cat 5e	100
5GBASE-T	802.3bz-2016 (CL126)	5,000	4	4	6.25	64B65B PAM-16 128-DSQ	400	200	100	Cat 6	250
10GBASE-T	802.3an-2006 (CL55)	10,000	4	4	6.25	64B65B PAM-16 128-DSQ	800	400	100	Cat 6A	500

↑ Cite error: The named reference speed was invoked but never defined (see the help page).
↑ Cite error: The named reference bitsperhertz was invoked but never defined (see the help page).
↑ Cite error: The named reference frequency was invoked but never defined (see the help page).
↑ Cite error: The named reference catreach was invoked but never defined (see the help page).

Cite error: There are <ref group=upper-alpha> tags or {{efn-ua}} templates on this page, but the references will not show without a {{reflist|group=upper-alpha}} template or {{notelist-ua}} template (see the help page).

[speed-1] Cite error: The named reference speed was invoked but never defined (see the help page).

[bitsperhertz-2] Cite error: The named reference bitsperhertz was invoked but never defined (see the help page).

[frequency-3] Cite error: The named reference frequency was invoked but never defined (see the help page).

[catreach-4] Cite error: The named reference catreach was invoked but never defined (see the help page).

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[B]

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