X.21 Interface
(DTE /DCE Configuration)
Pin # | Signal |
|
|
1 | Frame Ground |
2 | T (Transmit |
|
|
3 | C |
|
|
4 | R (Receive |
|
|
5 | I |
|
|
6 | S (Signal Element |
|
|
7 | BT (Byte |
|
|
8 | SGND (Signal Ground) |
|
|
9 | T/ (Transmit |
|
|
10 | C/ |
|
|
11 | R/ (Receive |
|
|
12 | I/ |
|
|
13 | S/ (Signal Element |
|
|
14 | BT/ (Byte |
|
|
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