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Configuration Notes 40

Configuration Notes

The following are important considerations when you configure certain Eicon

SNA Gateway parameters.

Configuration Values

When you subscribe to an X.25 or Frame Relay network, your network services

provider should supply you with documentation on the characteristics of that

network. If documentation has not been provided, contact the agency that

installed the connection and request this information.

Review each parameter of the X.25 or Frame Relay network, and make sure

that your Eicon SNA Gateway configuration parameter values match the

corresponding X.25 or Frame Relay network parameter values. For example,

if the X.25 network has a default packet size of 256, and the Eicon SNA

Gateway configuration parameter is set to a default packet size of 128, then

you may encounter problems transmitting data over the X.25 network.

X.25 PVCs

If you configure only X.25 permanent virtual circuits (PVCs) in the X.25

configuration panel, make sure to configure a port for “X.25 PVC.” By default,

“X.25 SVC” is set, and will prevent any sessions from being established if you

do not change this value.

Dialer Sync Configuration

• If you configure your Eiconcard with the Clocking parameter set to

“INT+DPLL” and the Data Encoding parameter set to “NRZI,” the

maximum value of the Line Speed parameter is 19200 bps.

• If you configure your Eiconcard with the Clocking parameter set to

“INT+DPLL” and the Data Encoding parameter set to “FM0” or “FM1”,

the maximum value of the Line Speed parameter is 38400 bps.

• If you configure your Eiconcard with the Clocking parameter set to “INT,”

you must make sure that the cable(s) are properly attached and terminated

on the other end. Failure to do so may result in an Out of State condition for

the Eiconcard. It may also cause the Eiconcard commands (ECCARD,

ECMODULE, and ECDIALER) to function improperly.

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Eicon Networks C21 Guida di Installazione Pagina 40