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X.21 interface 71
Model 3088A Series Getting Started Guide E • Interface pinouts
X.21 interface
D-sub-15 female connector (DTE/DCE orientation)
Ethernet Console port
Note
Pins not listed are not used.
Pin # Signal
1 Frame Ground
2 T - Transmit Data-A (DTE Source)
3 C - Control-A (DTE Source)
4 R - Receive Data-A (DCE Source)
5 I - Indication-A (DCE Source)
6 S - Signal Element Timing-A (DCE Source)
7 BT - Byte Timing-A (DCE Source)
X - DTE Signal Element Timing - A (DTE source)
8 SGND - Signal Ground
9 T/ - Transmit Data-B (DTE Source)
10 C/ - Control-B (DTE Source)
11 R/ - Receive Data-B (DCE Source)
12 I/ Indication-B (DCE Source)
13 S/ Signal Element Timing-B (DCE Source)
14 BT/ - Byte Timing-B (DCE Source)
X/ - DTE Signal Element Timing - B (DTE source)
Table 10. RJ45 socket 10/100Base-T
Pin Signal
1 TX+
2 TX-
3 RX+
6 RX-