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8.2. The Direct Connect Feature
The Direct Connect feature allows you to initiate a Telnet session
with the CMS and make an immediate connection to a specific
RS232 Serial Port of the users' choice, without first being
presented with the command interface. This allows you to
connect to a discrete TCP port mapped directly to one of the
CMS RS232 Ports.
Direct Connect employs unique, pre-assigned TCP port numbers
for each RS232 Port. The user connects to the RS232 Port of
choice by including the associated TCP port number in the Telnet
connect command line.
The Direct Connect feature can be individually configured at
each CMS RS232 Port. In addition, Direct Connect allows you
to communicate with the CMS using either Standard Telnet
protocol, or Raw Socket Mode. Direct Connect can be used with
any of the available RS232 Port modes (Any to Any, Buffer,
Modem, and Passive).
8.2.1. Standard Telnet Protocol and Raw
Socket Mode
The Direct Connect feature offers the option to communicate
with the CMS unit using either Standard Telnet Protocol or Raw
Socket Mode. The TCP Port number included in the Telnet
connect command line determines which protocol is used.
When Standard Telnet Protocol is used, the CMS will respond to
all IACs. When Raw Socket Mode is used, data is always sent
"As Is", and command echo is always enabled.
Note: Telnet ports 23, 2001, and 3001 allow normal
access to the CMS command mode. However, port
3001 will transfer data using raw socket mode.
8-2
CMS-16 / CMS-8 User's Guide
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