X.25 pad connections, Table c-12 – Nortel Networks Passport ARN Routers User Manual
Page 139
ARN Technical Specifications
114200-E Rev 00
C-15
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 C-12.
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