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X.25 PAD Connections
The ARN 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
Table C-12.
X.25 Breakout Box Interface Pin Assignments
Pin Assignment
Pin 13
Pin 25
114200-E Rev 00
C-12.
Pin 1
Pin 14
ARN0093A
Signal
Pin No.
(Function)
1
GND
2
RxD
3
TxD
4
RTS
5
CTS
6
DSR
7
GND
8
DCD
9
Not Used
10
Not Used
11
Not Used
12
Not Used
ARN Technical Specifications
Signal
Pin No.
(Function)
13
Not Used
14
Not Used
15
Not Used
16
Not Used
17
Not Used
18
Not Used
19
Not Used
20
DTR
21
Not Used
22
Not Used
23
Not Used
24
Not Used
25
Not Used
C-15
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