From e5d8e61e43e792d4535134ac936d59a830d38e52 Mon Sep 17 00:00:00 2001
From: Jet Hughes <jethughes0@gmail.com>
Date: Tue, 25 Oct 2022 10:18:06 +1300
Subject: [PATCH] vault backup: 2022-10-25 10:18:06

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 content/notes/network.md | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/content/notes/network.md b/content/notes/network.md
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 # Overview
-
+Physical Media
+- TP cable
+	- two wired twisted together surrounded by a shield
+	- signal and ground reference
+	- short range (100meters)
+	- phone, DSL, ethernet lan
+- Coaxial
+	- inner conductor
+	- insulator
+	- outer conductor (shield)
+	- insulator
+	- plastic cover
+	- long distance high speed: cable tv ethernet lan
+- fibre optic
+	- light within glass
+	- high speed low error
 # Application Layer
 [Application Layer](notes/Application Layer)
 # Transport Layer