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ARN/DC Technical Specifications

116273-B Rev 00

C-11

X.25 PAD Connections

The ARN/DC provides X.25 PAD functions that enable the router to access X.25

services through the 8 ports of an attached breakout box. The PAD establishes and

maintains links with the packet switch network, assembles and disassembles

packets, communicates with the character terminal, and handles special control

processes for the character terminal.

You connect the X.25 ports using an RS-232-D serial connection as shown in

Table C-9

Table C-9. X.25 Breakout Box Interface Pin Assignments

Pin Assignment Pin No.

Signal

(Function) Pin No.

Signal

(Function)

1 GND 13 Not Used

2 RxD 14 Not Used

3 TxD 15 Not Used

4 RTS 16 Not Used

5 CTS 17 Not Used

6 DSR 18 Not Used

7 GND 19 Not Used

8 DCD 20 DTR

9 Not Used 21 Not Used

10 Not Used 22 Not Used

11 Not Used 23 Not Used

12 Not Used 24 Not Used

25 Not Used

Pin 13

Pin 1

Pin 25

Pin 14

ARN0093A

1 2 ... 124 125 126 127 128 129 130 131 132 133 134 ... 151 152

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Bay Networks BayStack ARN Routers none Manual de Serviço Página 129