CHAPTER 2
2-30 IEN HARDWARE REFERENCE 940043-002
10Base-2 LAN
Table 2-10 lists the DB25 pin assignments for a 10Base-2 LAN physical interface.
Table 2-10 DB25 (10Base-2 LAN)
Note: The LEC01 and LAU01 Ethernet adapters use this pinout to provide 10Base-2 and AUI
interfaces respectively.
PIN 10Base-2 LAN Pin Assignment Key
1Frame Ground FG
2Pin not used N/A
3Pin not used N/A
4Pin not used N/A
5Pin not used N/A
6Pin not used N/A
7 Signal Ground SG
8Pin not used N/A
9 Receive Positive RX+
10 Positive Five volts +5V
11 Transmit Positive TX+
12 Pin not used N/A
13 Carrier Detect Positive CD+
14 Positive Twelve volts +12V
15 Pin not used N/A
16 Pin not used N/A
17 Pin not used N/A
18 Pin not used N/A
19 Pin not used N/A
20 Pin not used N/A
21 Receive Negative RX-
22 Pin not used N/A
23 Transmit Negative TX-
24 Pin not used N/A
25 Carrier Detect Negative CD-
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