Compaq Compaq Portable II Dokumentacja Pobierz pdf (Strona 122)

Table 8.9-1. 25 Pin Asynchronous Connector

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Signal Names and Description Pin Number

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Protective Ground 1

Transmit Data (TX) 2

Receive Data (RX) 3

Request To Send (RTS) 4

Clear To Send (CTS) 5

Data Set Ready (DSR) 6

Signal Ground (GND) 7

Carrier Detect (CD) 8

+ Transmit current loop data (20 mA) 9

+ 5 VDC 200 mA (fuse on board) 10

- Transmit current loop return (20 mA) 11

Reverse Channel Option 12

No Connection 13

No Connection 14

No Connection 15

No Connection 16

1 2 ... 117 118 119 120 121 122 123 124 125 126 127 128 129

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Compaq Compaq Portable II Dokumentacja Strona 122