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80-001113 SysLINK Administrator’s Guide Page 12

Port Services

By default, all ports are configured to accept incoming TCP connections from TCP/telnet

clients and no outgoing service is configured. You may configure the ports to initiate

outgoing raw TCP (with or without SSL) or telnet connections to remote servers. In

addition, the modem emulation feature may be enabled to allow a serial port to mimic a

modem interface.

A note about port naming and numbering: the gateway ports are labeled “POS Serial” (1 and

2), “POS Terminal” (1, 2, 3 and 4), and “Modem”. In this manual and in the web

configuration screens the ports are referred to as Serial1, Serial2, Terminal1, Terminal2,

Terminal3, Terminal4 and Modem. For incoming connections, the ports are numbered as

follows:

Port

Incoming

Telnet Port

Raw TCP

Port

Serial1

9001

8001

Serial2

9002

8002

Terminal1

9003

8003

Terminal2

9004

8004

Terminal3

9005

8005

Terminal4

9006

8006

Modem

9007

8007

When using the modem service on a port, the phone number will be translated to a

host/port pair then a TCP connection will be established to the remote host.

When using outgoing connections on a port, the settings configured on the Serial Settings

page will be applied to the port, and a TCP connection will be established to the remote host.

If Require carrier/Generate hangups is set, the service will wait for the presence of the DCD

modem signal before connecting.

Once connected, data received on the port is sent to the remote server over the network

connection and data received on the network connection is sent out the port.

The following screen shot represents most of the options available for configuration.

Depending on the Service Type you have selected, not all of these options will be displayed.

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