Penguin
Annotated edit history of 10Base5 version 2, including all changes. View license author blame.
Rev Author # Line
1 CraigMckenna 1 [10Base5]
2
3 A type of cable used for [LAN] connections.
4
5 Also known as ThickEthernet.
6
7 uses an [AUI] connector
8
9
10 Can be used to create a truly passive network sniffer as below
11
12 Clipping the AUI
13
14 The easiest system to clip is 10-mbps using the old AUI transceiver. Note that in today's networking, such equipment is hard to find and expensive to buy "new", but littered all over the place as used equipment. You should consider stockpiling such equipment now, especially PCI Ethernet cards with transceivers.
15
16 Other forms of Ethernet are not easily altered. Thin-coax Ethernet uses the same wire for both transmitting/receiving. 10-BASE-T Ethernet requires a link heartbeat on the transmit line so that the hub knows it is connected. In short, only the AUI port contains pins that can be clipped without affecting the operation of the device.
17
18 1 8
2 PerryLorier 19 _''''_''''_''''_''''_''''_''''_''''_''''_''''_''''_''''_''''_''''_''''_''''_''''_''''_''''_
1 CraigMckenna 20 \ . . . . . . . . /
21 \ . . . . . . . /
22 \-------------/
23 9 15
24
2 PerryLorier 25 --------------------------------
26 Pin Sgnl Description
27 --------------------------------
28 1 GND
29 2 CI-A Control In Circuit A
30 3 DO-A Data Out Circuit A
31 4 GND
32 5 DI-A Data In Circuit A
33 6 VC Voltage Common
34 7 -
35 8 GND
36 9 CI-B Control In Circuit B
37 10 DO-B Data Out Circuit B
38 11 GND
39 12 DI-B Data In Circuit B
40 13 VP +12 Volts DC
41 14 GND
42 15 GND
43 --------------------------------
1 CraigMckenna 44
45 Cutting pings 3 and 10 will stop transmission. The easiest way is to clip the pins on the connector rather than the wire itself.